profitest mbase mtech - gossen metrawatt · 2015-02-24 · mtech: rcd type a and b as well as loop...

Operating Instructions

PROFITESTMBASE MTECHTest Instruments for IEC 60364.6 / DIN VDE 0100 3-349-470-03

15/2.15

2 GMC-I Messtechnik GmbH

4 5 6

8

91011

7

MEM: Key for memory functions

HELP: Access context sensitive help

ON/START: Switch on (press for approx. 3 sec.)Start/stop measurement

ESC: Return to submenu

13

31

Softkeys

Control Panel

Test Instrument and Adapter

16 1715

Current Clamp and Probe Connections

14

Fixed Function Keys

2

18 19 20

21

Interfaces and Charger Connection

12

!RS 232

2

• Parameter selection• Specify limit value• Entry functions• Memory functions

LEDs & connection symbols section 18.1

910

*

* *

* Refer to section 2.1 on page 5 regarding usage of the test probes.

1516

17

IN: Tripping testProceeding to next function (semi-automatic measurement)Start offset measurements

GMC-I Messtechnik GmbH 3

Key Overview of Device Settings and Measuring Functions Relative to Rotary Switch Setting Test Instrument and Adapter

1 Control panel with keys and display panel with snap in function for ideal viewing angle

2 Eyelets for attaching the shoulder strap

3 Rotary selector switch4 Measuring adapter (2-pole)5 Plug insert (country specific)6 Test plug (with retainer ring)7 Alligator clip (plug-on)8 Test probes9 t key ON/START *

10 Key I IN/compens./ZOFFSET

11 Contact surfaces for fingercontact

12 Test plug holder13 Fuses14 Holder for test probes (8)

Connectors for current clamp / probe15 Current clamp connection 116 Current clamp connection 217 Probe connection

Interfaces, Charger Connection18 USB slave for PC connection19 RS 232 for connecting a

barcode scanner or an RFID reader

20 Connection for Z502P chargerAttention! Make sure that no standard batteries are inserted beforeconnecting the charger.

21 Battery compartment lid (compartment for rechargeable batteries and replacement fuses)

Please refer to section 17 for explanations regarding con-trol and display elements.

Battery Level IndicatorMeasuring FunctionMeasurement Memory Occupancy

Measured

Parameters

Display Panel

PE

Manual: Save Value

Battery full

Battery OK

Battery weak

Battery (nearly)

Battery Level Indicator

BAT

BAT

BAT

BAT

Memory Occupancy Display

MEM Memory half full

MEM Memory full, transfer data to PC

Connection Test – Mains Connection Test ( section 18.1)

Connection OK L and N reversed

RUN READY

Connection test section 18.1

depleted: U < 8 V

Quantities

in progress/stopped

N

PE

L N

PE

L)(

N

PE

L N

PE

Lx

N

PE

L N

PE

L

xx

L

PE

Nx

L

PE

N

* Power ON only possible via instrument key

Switch positiondescrip-tion on page ...

Picto-graph

Device SettingsMeasuring Functions

SETUP

page 7

Brightness, contrast, Date/timeLanguage (D, GB, P), Profile (ETC, PC.doc)

Default settings< Test: LED, LCD, Acoustic signal Rotary switch balanc., batt. level >

IN

page 16

UIN Contact voltageta Tripping timeRE Earth resistanceU / UN Line voltage / Nominal line voltagef / fN Line frequency / Nominal line frequency

IF

page 18

UIN Contact voltageI Residual currentRE Earth resistanceU / UN Line voltage / Nominal line voltagef / fN Line frequency / Nominal line frequency

ZL-PE

page 24

ZL-PE Loop impedanceIK Short-circuit currentU / UN Line voltage / Nominal line voltagef / fN Line frequency / Nominal line frequency

ZL-N

page 26

ZL-N Line impedanceIK Short-circuit currentU Voltage drop as a percentageZOFFSET Offset for voltage dropU / UN Line voltage / Nominal line voltagef / fN Line frequency / Nominal line frequency

RE

page 28

Measurement with or without probeRE (L-PE) Earth loop (without probe/clamp)RE Earth resistance (with probe/clamp)UE Earth electrode voltage (only with probe)U / UN Line voltage / Nominal line voltagef / fN Line frequency / Nominal line frequency

RLO

page 37

RLO Low-resistance with polarity reversalRLO+, RLO– Low-resistance single-poleROFFSET Offset resistance

RISO

page 34

RINS Insulation resistance RE(INS) Earth leakage resistanceU Voltage at the test probesUINS Test voltage

Ramp: triggering/breakdown voltageU

page 14

Single-phase measurement UL-N-PEUL-N Voltage between L and NUL-PE Voltage between L and PEUN-PE Voltage between N and PEUS-PE Voltage between probe and PEf Frequency3-phase measurement U3~UL3-L1 Voltage between L3 and L1UL1-L2 Voltage between L1 and L2UL2-L3 Voltage between L2 and L3f Frequency

Phase Sequence

SENSOR

page 39

IL/AMP Residual or leakage currentT/RF Temperature/humidity (in preparation)

EXTRA

page 41

ZST Standing surface insulation impedancePTEST Meter start-up teste-mobility Electric vehicles at charging stations (IEC 61851)

AUTO

page 44

Automatic test sequences hardcoded in the deviceMBASE: RCD type A MTECH: RCD type A and B

as well as loop impedance ZLPE with DC offset and positive half waveThese operating instructions describe a test instrument with

software version SW-VERSION (SW1) 02.20.00.


Table of Contents Page Page1 Scope of Delivery .............................................................. 42 Application ........................................................................ 52.1 Using Cable Sets and Test Probes ................................................52.2 Overview of Features Included with

Different PROFITEST MASTER Variants .........................................5

3 Safety Features and Precautions ...................................... 64 Initial Start-Up ................................................................... 64.1 Preparation for use .......................................................................64.2 Installing or Replacing Rechargeable Batteries ............................64.3 Switching the Instrument On and Off ...........................................64.4 Battery Test ..................................................................................64.5 Charging the Batteries in the Tester .............................................64.6 Device Settings .............................................................................7

5 General Instructions ........................................................ 115.1 Connecting the Instrument .........................................................115.2 Automatic Settings, Monitoring and Shut-Off .............................115.3 Measurement Value Display and Memory ..................................115.4 Testing Earthing Contact Sockets for Correct Connection ..........115.5 Help Function ..............................................................................125.6 Setting Parameters or Limit Values using RCD Measurement as an

Example ......................................................................................125.7 New! Freely Adjustable Parameters or Limit Values ....................135.8 Two-Pole Measurement with Rapid or

Semiautomatic Polarity Reversal ................................................13

6 Measuring Alternating Voltage and Frequency ............... 146.1 Single Phase Measurement ........................................................146.1.1 Voltage between L and N (UL-N), L and PE (UL-PE), as well as N and PE

(UN-PE) for country-specific plug insert, e.g. SCHUKO ......................146.1.2 Voltage between L – PE, N – PE and L – L for connection of 2-pole adapter 146.2 3-Phase Measurement (Line-to-Line Voltage) and Phase Sequence ..... 15

7 Testing RCDs .........................................................................157.1 Measuring Contact Voltage (with reference to nominal residual

current) with 1/3 Nominal Residual Current and Tripping Test with Nominal Residual Current ...........................................................16

7.2 Special Testing for Systems and RCCBs ..........................................187.2.1 Testing Systems and RCCBs with Rising Residual Current

(alternating current) for RCDs type AC, A/F, B/B+ and EV ................187.2.2 Testing Systems and RCCBs with Rising Residual Current

(direct current) for RCDs type B/B+ und EV (only MTECH) ................187.2.3 Testing RCCBS with 5 IN .......................................................................... 197.2.4 Testing RCCBs which are Suited for Pulsating DC Residual Current ..197.3 Testing for Special RCDs ............................................................207.3.1 Systems with Type RCD-S Selective RCDs ......................................207.3.2 PRCDs with Non-Linear Type PRCD-K Elements ..............................207.3.3 SRCDs, PRCD-S (SCHUKOMAT, SIDOS or comparable) ....................217.3.4 Type G or R RCCBs .......................................................................227.4 Testing Residual Current Circuit Breakers in TN-S Systems ......237.5 Testing Residual Current Circuit Breakers (RCDs) in IT

Systems with High Wiring Capacitance (e.g. in Norway) ............23

8 Testing of Breaking Requirements Overcurrent Protective Devices, Measurement of Loop Impedance and Determina-tion of Short-Circuit Current (functions ZL-PE and IK) ...... 24

8.1 Measurements with Suppression of RCD Tripping .....................258.1.1 Measurement with Positive Half-Waves (PROFITEST MTECH only) ............ 258.2 Evaluation of Measured Values ..................................................258.3 Settings, Short-circuit current Calculation – Parameter IK ............ 26

9 Measuring Line Impedance (ZL-N function) ..................... 26

10 Earthing Resistance Measurement (function RE) ............ 2810.1 Measuring with Probe ................................................................2910.2 Measuring Without Probe ...........................................................3010.3 Measuring Earth Electrode Potential (function UE) .....................3110.4 Selective Earth Resistance Measurement with Accessory Current

Clamp Sensor .............................................................................32

11 Measuring Insulation Resistance ......................................... 3411.1 General .......................................................................................3411.2 Special Case: Earth Leakage Resistance (REINS) ........................36

12 Measuring Low-Value Resistance of up to 100 Ohm (protective conductors and protective equipotential bonding conductors) ..................................................................... 37

13 Measurement with Accessory Sensors ........................... 3913.1 Measuring Current with a Current Sensor Clamp .......................39

14 Special Functions – EXTRA Switch Position ...............................4014.1 Measuring the Impedance of Insulating Floors and Walls (standing

surface insulation impedance ZST) .............................................4114.2 Testing Meter Start-Up with Earthing Contact Adapter .........................4214.3 New! Testing the Operating States of Electric Vehicles at Charging

Stations per IEC 61851 (PROFITEST MTECH only) .......................43

15 Automatic Test Sequences – AUTO Function .................. 4416 Database ......................................................................... 4616.1 Creating Distributor Structures, General ....................................4616.2 Transferring Distributor Structures ............................................4616.3 Creating a Distributor Structure in the Test Instrument .............4616.3.1 Structure Creation (Example for Electrical Circuit) ............................4716.3.2 Searching for Structural Elements ..................................................4816.4 Data Storage and Reporting .......................................................4916.4.1 Using Barcode and RFID Readers ...................................................50

17 Operating and Display Elements ..................................... 5118 Characteristic Values ...................................................... 5418.1 LED Indications, Mains Connections and Potential Differences .57

19 Maintenance ................................................................... 6319.1 Firmware Revision and Calibration Information .........................6319.2 Rechargeable Battery Operation and Charging ..........................6319.2.1 Charging Procedure with the Z502P Charger ..................................6319.3 Fuses ..........................................................................................6319.4 Housing ......................................................................................63

20 Appendix ......................................................................... 6420.1 Tables for the determination of maximum or minimum display values

under consideration of maximum instrument operating uncertainty ....6420.2 Testing Electrical Machinery per DIN EN 60204 – Applications,

Limit Values ................................................................................6620.3 Periodic Testing per DGUV provision 3 (previously BGV A3)

– Limit Values for Electrical Systems and Equipment ................6720.4 List of Abbreviations and their Meanings ...................................6820.5 Index ...........................................................................................6920.6 Bibliography ...............................................................................7020.6.1 Internet Addresses for Additional Information .................................70

21 Repair and Replacement Parts ServiceCalibration Center and Rental Instrument Service .......................................................... 71

22 Recalibration ................................................................... 7123 Product Support .............................................................. 71

1 Scope of Delivery1 test instrument 1 earthing contact plug insert (country-specific)1 2-pole measuring adapter and 1 cable for expansion into a

3-pole adapter (PRO-A3-II)2 alligator clips1 shoulder strap1 Set of rechargeable batteries (Z502H)1 Battery charger (Z502P)1 condensed operating instructions1 CD ROM with operating instructions1 DAkkS calibration certificate1 USB interface cable


2 ApplicationThe PROFITEST MASTER measuring and test instrument is used for rapid and efficient testing of protective measures in accordance with DIN VDE 0100, part 600:2008 (Erection of low-voltage installations; tests – initial tests), ÖVE-EN 1 (Austria), SEV 3755 (Switzerland) and other country-specific regulations.The device is equipped with a microprocessor and complies with IEC 61557/EN 61557/VDE 0413 regulations:Part 1: General requirementsPart 2: Insulation resistance testersPart 3: Loop resistance testersPart 4: Instruments for the measurement of resistance at earthing

conductors, protective conductors and bonding conductorsPart 5: Earthing resistance testersPart 6: Instruments for the testing of proper functioning of

residual current devices (RCDs) and the effectiveness of protective measures in TT and TN systems

Part 7: Phase sequence testersPart 10:Combined instruments for the testing, measuring or

monitoring of protective measures

It is especially suited for:• Systems set-up• Initial start-up• Periodic testing• Troubleshooting for electrical systemsAll measurement values required for approval reports (e.g. ZVEH) can be acquired with the instrument.All acquired data can be archived, and measurement and test reports can be printed out at a PC. This is of special significance where product liability is concerned.The applications range of the PROFITEST MASTER covers all alternating and three-phase current systems with nominal voltages of 230 V / 400 V (300 V / 500 V), and nominal frequencies of 162/3 / 50 / 60 / 200 / 400 Hz.

The following measurements and tests can be performed with the PROFITEST MASTER:• Voltage / frequency / phase sequence• Loop impedance / line impedance• RCD protective circuits• Earthing resistance / earth electrode potential• Standing surface insulation resistance / insulation resistance• Earth leakage resistance• Low-value resistance (potential equalization)• Leakage current with current transformer clamp• Meter start-up• Cable lengthSee section 20.2 regarding testing of electrical machines per DIN EN 60204. For periodic tests in accordance with DGUV provision 3, see section 20.3.

Meaning of Symbols on the InstrumentWarning concerning a source of danger (attention: observe documentation!)

Safety class II device

charging socket for DC low voltage (Z502P charger) Attention! Make sure that only rechargeable batteries are inserted before connecting the charger. This device may not be disposed of with the trash. Fur-ther information regarding the WEEE mark can be accessed at www.gossenmetrawatt.com by entering the search term WEEE.EC label of conformity

Any warranty claims will be forfeited when the warranty seal has been damaged or removed.

2.1 Using Cable Sets and Test Probes• 2 or 3-pole measuring adapter included• 2-pole measuring adapter with 10 m cable as optional acces-

sory: PRO-RLO II (Z501P)• KS24 cable set as optional accessory (GTZ3201000R0001)Measurements per DIN EN 61010-031 may only be performed in environments in accordance with measuring categories III and IV with the safety cap attached to the test probe at the end of the measurement cable. In order to establish contact inside 4 mm jacks, the safety caps have to be removed by prying open the snap fastener with a pointed object (e.g. the other test probe).

2.2 Overview of Features Included withDifferent PROFITEST MASTER Variants

1 The so-called live measurement is only advisable if there is no biasing current within the system.Only suitable for motor circuit breaker with low nominal current.

2 hardcoded in the device, cannot be modified3 currently available languages: D, GB, I, F, E, P, NL, S, N, FIN, CZ, PL

!

PROFITEST ... MBASE MPRO MTECH MXTRA

Article Number M520M M520N M520O M520P

Testing of residual current devices (RCDs)UB measurement without tripping RCD 3 3 3 3

Tripping time measurement 3 3 3 3

Measurement of tripping current IF 3 3 3 3

Selective, SRCDs, PRCDs, type G/R 3 3 3 3

AC/DC sensitive RCDs, type B, B+, EV — — 3 3

Testing of IMDs — — — 3

Testing of RCMs — — — 3

Testing for N-PE reversal 3 3 3 3

Measurement of loop impedance ZL-PE / ZL-NFuse table for systems without RCDs 3 3 3 3

Without tripping the RCD, fuse table — — 3 3

With 15 mA test current1 without tripping the RCD 3 3 3 3

Earthing resistance RE (mains operation)I-U measuring method (2/3-wire measuring method via measuring adapter: 2-wire/2-wire + probe)

3 3 3 3

Earthing resistance RE (battery operation) 3 or 4-wire measurement via PRO-RE adapter — 3 — 3

Soil resistivity E (battery operation) (4-wire measurement via PRO-RE adapter) — 3 — 3

Selective earthing resistance RE (mains opera-tion) with 2-pole adapter, probe, earth electrode and current clamp sensor (3-wire measuring method)

3 3 3 3

Selective earthing resistance RE (battery operation) with probe, earth electrode and current clamp sensor (4-wire measuring method via PRO-RE adapter and current clamp sensor)

— 3 — 3

Earth loop resistance RELOOP (battery operation) with 2 clamps (current clamp sensor direct and current clamp transformer via PRO-RE/2 adapter)

— 3 — 3

Measurement of equipotential bonding RLO, automatic polarity reversal 3 3 3 3

Insulation resistance RISO, variable or rising test voltage (ramp) 3 3 3 3

Voltage UL-N / UL-PE / UN-PE / f 3 3 3 3

Special measurementsLeakage current (with clamp) IL, IAMP 3 3 3 3

Phase sequence 3 3 3 3

Earth leakage resistance RE(ISO) 3 3 3 3

Voltage drop 3 3 3 3

Standing-surface insulation ZST 3 3 3 3

Meter start-up 3 3 3 3

Leakage current with PRO-AB adapter — — — 3

Residual voltage test — — — 3

Intelligent ramp — — — 3

Electric vehicles at charging stations (IEC 61851) — — 3 3

FeaturesSelectable user interface language3 3 3 3 3

Memory (database for up to 50,000 objects) 3 3 3 3

Automatic test sequence function 3 2 3 3 2 3

RS 232 port for RFID/barcode scanner 3 3 3 3

USB port for data transmission 3 3 3 3

Interface for Bluetooth® — — — 3

ETC user software for PC 3 3 3 3

Measuring category: CAT III 600 V/CAT IV 300 V 3 3 3 3

DAkkS calibration 3 3 3 3


3 Safety Features and PrecautionsThis instrument fulfills the requirements of applicable European and national EC guidelines. We confirm this by affixing the CE mark. The relevant declaration of conformity can be obtained from GMC-I Messtechnik GmbH.The electronic measuring and test instrument is manufactured and tested in accordance with safety regulations IEC 61010-1 / EN 61010-1 / VDE 0411-1.Only when used for its intended purpose, safety of the operator, as well as that of the instrument, is assured.

Read the operating instructions thoroughly and carefully before using your instrument. Follow all instructions contained therein. Make sure that the operating instructions are available to all users of the instrument.

Tests may only be executed by a qualified electrician. Grip and hold the test plug and test probes securely when they have been inserted, for example, into a socket. Danger of injury exists if tugging at the coil cord occurs, which may cause the test plug or test probes to snap back.

The measuring and test instrument may not be placed into service:• if the battery compartment lid has been removed• if external damage is apparent• if the connector cable or measuring adapters are damaged• if the instrument no longer functions flawlessly• after a long period of storage under unfavorable conditions

(e.g. humidity, dust or extreme temperature)

Exclusion of LiabilityWhen testing systems with RCCBs, the RCCBs may switch off. This may occur even though the test does not normally call for it. Leakage currents may be present which, in combination with the test current of the test instrument, exceed the shutdown threshold value of the RCCB. PCs which are operated in proximity to such RCCB systems may switch off as a consequence. This may result in inadvertent loss of data. Before conducting the test, precautions should thus be taken to ensure that all data and programs are adequately saved (Data backup see page 50.), and the computer should be switched off if necessary. The manufac-turer of the test instrument assumes no liability for any direct or con-sequential damages to equipment, computers, peripheral equipment or databases which occurs while performing tests.

Opening of Equipment / RepairThe equipment may be opened only by authorized service per-sonnel to ensure the safe and correct operation of the equipment and to keep the warranty valid.Even original spare parts may be installed only by authorized ser-vice personnel.In case the equipment was opened by unauthorized personnel, no warranty regarding personal safety, measurement accuracy, conformity with applicable safety measures or any consequential damage is granted by the manufacturer.Any warranty claims will be forfeited when the warranty seal has been damaged or removed.

4 Initial Start-Up4.1 Preparation for useBefore putting the test instrument into service and using it for the first time, the lamination sheets must be removed from the two sensor surfaces (finger contacts) of the test plug in order to ensure that contact voltage is reliably detected.

4.2 Installing or Replacing Rechargeable Batteries

Attention!!Before opening the battery compartment, disconnect the instrument from the measuring circuit (mains) at all poles!

NoteWe recommend rechargeable NiMH batteries. See also section 19.2 on page 63 concerning charging and the battery charger.

Always replace batteries in complete sets.Dispose of rechargeable batteries in an environmentally sound fashion towards the end of their useful life (charging capacity approx. 80%).Ð Loosen the slotted screw for the battery compartment lid on

the back and remove the lid.Ð Remove the battery holder and insert eight 1.5 V AA batteries

with correct polarity in accordance with the symbols.

Attention!!Make sure that all of the rechargeable batteries are inserted with correct polarity. If just one battery is inserted with reversed polarity, it will not be recognized by the instrument and may result in battery leakage.

Ð Slide the battery holder with batteries back in to the battery com-partment. The holder can only be inserted in its proper position.

Ð Replace the lid and retighten the screw.

Attention!!The instrument may only be placed into service if the battery compartment lid is securely fastened! Incorrectly inserted rechargeable batteries may result in battery leakage!

4.3 Switching the Instrument On and OffThe test instrument is switched on by pressing the ON/START key. The menu which corresponds to the momentary selector switch position is displayed.The instrument can be switched off manually by simultaneously pressing the MEM and HELP keys. After the period of time selected in the SETUP menus has elapsed, the instrument is switched off automatically (see “Device Settings”, section 4.6.

4.4 Battery TestIf battery voltage has fallen below the allowable lower limit, the pictograph shown at the right appears. “Low Batt!!!” is also displayed along with a battery symbol. The instrument does not function if the rechargeable batteries have been depleted excessively, and no display appears.

4.5 Charging the Batteries in the Tester

Attention!!Use the Z502P charger only in order to charge batteries which have already been inserted into the tester.Make sure that the following conditions have been fulfilled before connecting the charger to the charging socket: – Rechargeable batteries have been installed with

correct polarity (not standard batteries) – the plug of the charger has been connected with

correct polarity, see also section 19.2.1 – The instrument has been disconnected from the

measuring circuit at all poles – The instrument must remain off during charging.

Refer to section 19.2.1 with regard to charging batteries which have been inserted into the tester.

If the rechargeable batteries or the battery pack have not been used or charged for an extended period of time (> 1 month) (up to a state of excessive depletion):Observe the charging process (which is indicated by LEDs at the battery charger) and start another charging process if necessary (disconnect the battery charger from the mains and from the test instrument for this purpose. Reconnect it afterwards).Please note that the system clock does not continue in this case and must be reset after starting the instrument again.

BAT


4.6 Device Settings

SETUP

LED and LCD test menu

Rotary switch balancing menu

Brightness/contrast menu,

Software revision level,calibration date

Display: date / time

Display: automatic shutdown

Display: automatic shutdownof display illumination after 15 sec.

of the tester after 45 sec. time, language, profiles

1

2

3

4

and battery test

0b

0a

0

1

3

0b

Return to main menu

0a

On-time Display Illumination

Brightness and Contrast Settings Time, On-Time and Default Settings

Menu Selection for Operating Parameters

LED Tests LCD and Acoustic Signal Tests

On-time Test Instrument

Cell test

Inverse cell test

Hide all pixels

Show all pixels

Acoustic signal test

Return to main menu

MAINS LED: test green

MAINS LED: test red

UL/RL LED: test red

RCD-FI LED: test red

Return to main menu Set time

Profiles for distributor

Default settings

structures

Language ofonline instructions

3a3b

3c

3d

3e

Set date

On-timeDisplay illumination/test instrument

Select inspector(modification via ETC)

3f

3gDB-MODE submenu

Brightness/contrast submenu


1

2

3

40b

0a

0

3

Set Time

Menu Selection for Operating Parameters

Set Brightness and Contrast Set Time, Language, Profile, Acoustic Signal

Set Date

3a

3b Set time/date

Increase

Increase

day

Activate settings

month

Increaseyear

Return to submenu

Decrease

Decrease

day

month

Decreaseyear

Return to submenu

Decrease

Decrease

hours

minutes

Decreaseseconds

Set time/date

Increase

Increase

hours

Activate settings

minutes

Increaseseconds

Return to main menu

DB-MODE submenu

Brightness/contrast submenu

Set time

Profiles for distributor

Default settings

structures

Language ofonline instructions

3a3b

3c

3d

3e

Set date

LED and LCD test menu

Rotary switch balancing menu

Brightness/contrast menu,

Software revision level,calibration date

Display: date / time

Display: automatic shutdown

Display: automatic shutdownof display illumination after 15 sec.

of the tester after 45 sec. time, language, profiles

and battery test

On-timeDisplay illumination/test instrument

Select inspector(modification via ETC)

Actual inspector

3f

3g


Significance of the Individual Parameters

On-time Test InstrumentWith this function, you can select the time interval after which the test instrument switches off automatically. This selection has a significant effect on the service life and the charging condition of the rechargeable batteries.

On-time LCD IlluminationWith this function, you can select the time interval after which the LCD illumination switches off automatically. This selection has a significant effect on the service life and the charging condition of the rechargeable batteries.

Submenu: Rotary Switch Balancing

Proceed as follows in order to precision adjust the rotary switch: 1 Press the TESTS Rotary Switch / Battery Test softkey in order to

access the rotary switch balancing menu.2 Then press the softkey with the rotary switch symbol.3 Turn the rotary switch clockwise to the next respective

measuring function (IN first after SETUP).4 Press the softkey assigned to the rotary switch in the figure. After

pressing the softkey, the display switches to the next measuring function. Labeling in the LCD image must correspond to the actual position of the rotary switch.

The level bar in the LCD image of the rotary switch should be located in the middle of the black field, and is supplemented at the right-hand side with a number within a range of –1 to 101. This value should be between 45 and 55. In the case of –1 or101 the rotary disc position does not match with the measuring function activated in the LCD display.5 If the displayed value is not within this range, readjust the position by

pressing the Readjust softkey. A brief acoustic signal acknowl-edges readjustment.

NoteIf labeling in the LCD image of the rotary switch does not correspond with its actual position, a continuous acoustic signal is generated as a warning when the Readjust softkey is pressed.

6 Return to point 2 and continue. Repeat this procedure until all rotary switch functions have been tested, and if necessary readjusted.

Ð Press ESC in order to return to the main menu.

Submenu: Battery Level Query

If battery voltage falls short of or equals 8.0 V, the UL/RL LED lights up red, accompanied by an acoustic warning signal.

NoteMeasuring Sequence If battery voltage drops below 8.0 V during a measuring sequence, this is signalled by a pop-up window. The measured values are invalid. The mea-suring results cannot be stored.

Ð Press ESC in order to return to the main menu.

Attention!!Data Loss when changing lan-guage, profiles or reset to default settings! Save your measurement data to a PC before pressing the corresponding key. The window shown on the right-hand side prompts you to acknowledge deletion once again.

User Interface Language (CULTURE)Ð Select the desired country-specific setup with the appropriate

country code. Attention: all existing structures, data and sequences are deleted, see note above!

Profiles for Distributor Structures (PROFILES)The profiles describe the topology structure. The structure of the PC evalu-ation program in use may differ from that of the PROFITEST MASTER. The PROFITEST MASTER there-fore offers the possibility to adapt to the PC evalu-ation program structure.By selecting the appropri-ate profile, you determine which object combina-tions are possible. It is, for example, possible to cre-ate a distributor under another distributor or to store a measurement for a building.Ð Select the PC evaluation programs you intend to use.

Attention: all existing structures, data and sequences are deleted, see note above!

If you have not selected an appropriate evalua-tion program and, for example, the storage of measured values is not possible at the selected point in the structure, the window shown at the right pops up.

Default Settings (GOME SETTING)The test instrument is returned to its original default settings when this key is activated.Attention: all existing structures, data and sequences are deleted, see note above!

Adjusting Brightness and Contrast

0a

0b

2

3c

3d

3e

3f

Return to previous menu

Increase brightness

Decrease brightness

Increase contrast

Decrease contrast


DB MODE – Presenting the Database in Text Mode or ID Mode

The DB MODE functions are available as of firmware ver-sion 01.05.00 of the test instrument and as of ETC version 01.31.00.

Creating Structures in TXT MODEBy default, the database in the test instrument is set to text mode, „TXT“ is indicated in the header. You can create structural ele-ments in the test instrument und add designations in plain text, e. g. Customer XY, Distributor XY and Electrical Circuit XY.

Creating Structures in ID MODEAlternatively, you can work in the ID mode. „ID“ is indicated in the header. You can create structural elements in the test instrument which can be labelled with ID numbers at your discretion.

NoteWhen data are transferred from the test instrument to the PC or ETC, ETC always retains the presentation (TXT or ID mode) selected in the test instrument.When data are transferred from the PC or ETC to the test instrument, the test instrument always retains the presen-tation selected in ETC.So, the respective receiver of the data always adopts the presentation of the sender.

NoteIn the test instrument, structures can either be created in text mode or in ID mode. In the ETC software, however, designations and ID num-bers are always allocated.

If no texts or ID numbers have been allocated when creating the structures in the test instrument, ETC generates the missing entries automatically. They can be subsequently edited in the ETC software and transferred back to the test instrument if required.

Firmware Revision and Calibration Information (Example)

Ð Press any key in order to return to the main menu.

Firmware Update with the MASTER UpdaterThe layout used for the entire range of PROFITEST Master test instruments makes it possible to adapt instrument software to the latest standards and regulations. Beyond this, suggestions from customers result in continuous improvement of the test instru-ment software, as well as new functions.In order to assure that you can take advantage of all of these ben-efits without delay, the MASTER Updater allows you to quickly and completely update your test instrument software on-site.The user interface can be set to either English, German or Italian.

NoteAs a registered user, you’re entitled to download the MASTER Updater and the current firmware version free of charge from the myGMC page.

3g

4


5 General Instructions

5.1 Connecting the InstrumentFor systems with earthing contact sockets, connect the instrument to the mains with the test plug to which the appropriate country-specific plug insert is attached. Voltage between phase conductor L and protective conductor PE may not exceed 253 V!Socket polarity need not be taken into consideration. The instrument detects the positions of phase conductor L and neutral conductor N, and automatically reverses polarity if necessary.This does not apply to the following measurements:– Voltage measurement in switch position U– Insulation resistance measurement– Low-value resistance measurementThe positions of phase conductor L and neutral conductor N are identified on the plug insert.If measurement is to be performed at three-phase outlets, distribution cabinets or permanent connections, the measuring adapter must be attached to the test plug (see also table 16.1). Connection is established with the test probes: one at PE or N and the other at L.The 2-pole measuring adapter must be expanded to 3 poles with the included measurement cable for the performance of phase sequence testing.Contact voltage (during RCCB testing) and earthing resistance can, and earth-electrode potential, standing surface insulation resistance and probe voltage must be measured with a probe. The probe is connected to the probe connector socket with a 4 mm contact protected plug.

5.2 Automatic Settings, Monitoring and Shut-OffThe test instrument automatically selects all operating conditions which it is capable of determining itself. It tests line voltage and frequency. If these lie within their valid nominal ranges, they appear at the display panel. If they are not within their nominal ranges, prevailing voltage (U) and frequency (f) are displayed instead of UN and fN.Contact voltage which is induced by test current is monitored for each measuring sequence. If contact voltage exceeds the limit value of 25 V or 50 V, measurement is immediately interrupted. The UL/RL LED lights up red.If battery voltage falls below the allowable limit value, the instru-ment cannot be switched on or it is immediately switched off.The measurement is interrupted automatically, or the measuring sequence is disabled (except for voltage measuring ranges and phase sequence testing) in the event of:• Non-allowable line voltages (< 60 V, > 253 V / > 330 V /

> 440 V or > 550 V) for measurements which require line voltage

• Interference voltage during insulation resistance or low resistance measurement

• Overheating of the instrumentAs a rule, excessive temperatures only occur after approximately 50 measurement sequences at intervals of 5 seconds, when the rotary selector switch is set to the ZL-PE or ZL-N position. If an attempt is made to start a measuring sequence, an appropriate message appears at the display panel.

The instrument only switches itself off automatically after completion of an automatic measuring sequence, and after the predetermined on-time has expired (see section 4.3). On-time is reset to its original value as defined in the setup menu, as soon as any key or the rotary selector switch is activated.The instrument remains on for approximately 75 seconds in addition to the preset on-time for measurements with rising residual current in systems with selective RCDs.The instrument always shuts itself off automatically!

5.3 Measurement Value Display and MemoryThe following appear at the display panel:• Measurement values with abbreviations and units of measure• Selected function• Nominal voltage• Nominal frequency• Error messagesMeasurement values for automatic measuring sequences are stored and displayed as digital values until the next measurement sequence is started, or until automatic shut-off occurs.If the upper range limit is exceeded, the upper limit value is displayed and is preceded by the “>” symbol (greater than), which indicates measurement value overrun.

NoteThe LCD displays shown in these operating instructions may differ from those of the current test instrument due to product improvements.

5.4 Testing Earthing Contact Sockets for Correct ConnectionThe testing of earthing contact sockets for correct connection prior to protective measures testing is simplified by means of the instrument’s error detection system.The instrument indicates improper connection as follows:• Non-allowable line voltage (< 60 V or > 253 V):

The MAINS/NETZ LED blinks red and the measuring sequence is disabled.

• Protective conductor not connected or potential to earth 50 V at f 50 Hz (switch position U – single-phase measurement): If the contact surfaces are touched (finger contact) while PE is being contacted (via a country-specific plug insert, e.g. SCHUKO, as well as via the PE test probe at the 2-pole adapter) PE is displayed. The UL/RL and RCD/FI LEDs light up red as well.* for reliably detecting the contact voltages, both sensor surfaces at

the test plug must be touched directly with the finger/palm without any skin protection applied, see also section 4.1.

• Neutral conductor N not connected (during mains dependent mea-surements): The MAINS/NETZ LED blinks green.

• One of the two protective contacts is not connected: Testing for this condition is performed automatically for the RCD functions. Poor contact resistance at one of the contacts leads to one of the following displays depending upon plug polarity:– Display in the connection pictograph:

PE interrupted (x) or lower protective conductor jumper interrupted with reference to the keys on the test plug Cause: voltage measuring path interrupted Result: measurement is disabled

– Display in the connection pictograph: Upper protective conductor jumper interrupted with reference to the keys on the test plug Cause: current measuring path interruptedResult: no measured value display

NoteSee also “LED Indications, Mains Connections and Potential Differences” beginning on page 57.

Attention!!Reversal of N and PE in a system without RCCBs cannot be detected and is not indicated by the instrument. In a system with an RCCB, the breaker is tripped during “measurement of contact voltage without tripping” (automatic ZL-N measurement) if N and PE have been reversed.


5.5 Help FunctionThe following information can be displayed for each switch position and basic function after it has been selected with the rotary selector switch:• Wiring diagram• Measuring range• Nominal range of use and Measuring Uncertainty• Nominal value

Ð Press the HELP key in order to query online help:Ð If several pages of help are available for the respective

measuring function, the HELP key must be pressed repeatedly.Ð Press the ESC key in order to exit online help.

5.6 Setting Parameters or Limit Values using RCD Measurement as an Example

1 Access the submenu for setting the desired parameter.2 Select the parameter with the orscroll key.3 Go to the settings menu for the selected parameter with the scroll key.4 Adjust the value with the orscroll key.5 Acknowledge the setting value with the key. This value is transferred to

the settings menu.6 The setting value is not permanently accepted for the

respective measurement until 3 is pressed, after which the display is returned to the main menu. You can return to the main menu by pressing ESC instead of 3 without accepting the newly selected value.

Parameter BlockingThe individual selected parameters are subjected to a plausibility test before they are accepted by the measuring window. If the selected parameter does not make sense in combination with the other parameters that have been preset, it is not accepted and an error window appears.The parameter previously set is retained in the memory. Remedy: Select another parameter.

1 2

2

3

4

4

5

6

2

4

3

5

6


5.7 New! Freely Adjustable Parameters or Limit ValuesIn addition to the fixed values, additional values can be freely adjusted within specified limits for certain parameters provided symbol Menu EDIT (3) appears at the end of the list of setting values.

Freely Assigning a Limit Value or Nominal Voltage

1 Submenu for accessing adjustment of the desired parameter (no screen-shot, see section 5.6).

2 Select the parameter (UL or UN) with the orscroll key (no screenshot, see section 5.6).

3 Select the desired value with the symbol using the orscroll key.4 Open the edit menu: Press the key with the symbol.

5 Select the desired digit or unit with the LEFT or RIGHT scroll key. The digit or unit is accepted with the key. The entire value is accepted by selecting the 3 symbol and acknowledging with the key. The new limit value or nominal value is added to the list.

NoteAdhere to the specified limits for the new setting value. New, freely adjusted limit values or nominal values in the parameters list can be deleted or changed with the help of a PC using the ETC program.

5.8 Two-Pole Measurement with Rapid or Semiautomatic Polarity Reversal

Rapid, semiautomatic two-pole measurement is available for the following tests. • Voltage measurement U• Loop impedance measurement ZLP-E• Insulation resistance measurement RISO

Rapid polarity reversal at the test plugThe polarity parameter is set to AUTO.Quick, convenient switching through all of the polarity variants without opening the submenu for parameter settings is accomplished by pressing the IN key on the instrument, or on the test plug.

Semi-Automatic Polarity Reversal in Memory ModeThe polarity parameter is set to AUTO.If a test needs to be executed with all polarity variants, semiautomatic polarity reversal is executed after each measurement by pressing the Save key.Polarity variants can be skipped by pressing the IN key on the instrument, or on the test plug.

Select digit/unit

Select digit/unit

Accept digit/unit

Delete character

3 Save value (to list)

Select editable value

Select editable value

Select EDIT menu

3

4

L1-NL2-NL3-N

L1-L2L2-L3L1-L3

L1-PEL2-PEL3-PEN-PE

L+N-PEL1-NL2-NL3-N

L1-L2L2-L3L1-L3

ZL-PE ZL-N

L1-PEL2-PEL3-PE

Riso

L1-PEL2-PEL3-PEN-PEL1-NL2-NL3-N

L1-L2L2-L3L1-L3

U

L1-NL2-NL3-N

L1-L2L2-L3L1-L3

L1-PEL2-PEL3-PEN-PE

L+N-PEL1-NL2-NL3-N

L1-L2L2-L3L1-L3

ZL-PE ZL-N

L1-PEL2-PEL3-PE

Riso

L1-PEL2-PEL3-PEN-PEL1-NL2-NL3-N

L1-L2L2-L3L1-L3

U


6 Measuring Alternating Voltage and FrequencySelect the Measuring Function

Switching Back and Forth Between Single and 3-Phase Measure-ment

Repeatedly press the softkey shown at the left in order to switch back and forth between single and 3-phase measurement. The selected phase measurement is displayed inverse (white on black).

6.1 Single Phase Measurement

Connection

A probe must be set for measuring probe voltage US-PE.

6.1.1 Voltage between L and N (UL-N), L and PE (UL-PE), as well as N and PE (UN-PE) for country-specific plug insert, e.g. SCHUKO

Repeatedly press the sofkey shown at the left in order to switch back and forth between the country-specific plug insert, e.g. SCHUKO, and the 2-pole adapter. The selected connection type is displayed inverse (white on black).

6.1.2 Voltage between L – PE, N – PE and L – Lfor connection of 2-pole adapter

Repeatedly press the sofkey shown at the left in order to switch back and forth between the country-specific plug insert, e.g. SCHUKO, and the 2-pole adapter. The selected connection type is displayed inverse (white on black).

Setting Parameters

2-pole measurement with fast or semiautomatic polarity reversal, see section 5.8.

U

2

1


6.2 3-Phase Measurement (Line-to-Line Voltage) and Phase Sequence

Connection

The measuring adapter (2-pole) is required in order to connect the instrument, and is expanded into a 3-pole measuring adapter with the included measure-ment cable.

Ð Press softkey U3~

Clockwise phase sequence is generally required for all 3-phase elec-trical outlets.• Measurement instrument connection is usually problematic

with CEE outlets due to contact problems. Measurements can be executed quickly and reliably wi thout contact problems with the help of the Z500A variable plug adapter set available from GMC.

• Connection for 3-wire measurement, plug L1-L2-L3 in clockwise direction as of PE socket

Direction of rotation is indicated by means of the following displays:

NoteSee section 18.1 regarding all indications for the mains connection test.

Voltage PolarityIf the installation of single-pole switches to the neutral conductor is prohibited by the standards, voltage polarity must be tested in order to assure that all existing single-pole switches are installed to the phase conductors.

7 Testing RCDsThe testing of residual current devices (RCDs) includes:• Visual inspection• Testing• MeasurementThe test instrument is used for testing and measurement.

Measuring MethodThe following must be substantiated by generating a fault current downstream from the RCD:

• That the RCD is tripped no later than upon reaching its nominal fault current value

• That the continuously allowable contact voltage value UL agreed upon for the respective system is not exceeded

This is achieved by means of:• Contact voltage measurement:

16 measurements with full-waves and extrapolation of IN

• Substantiation of tripping within 400 ms or 200 ms with IN

• Substantiation of tripping current with rising residual current, value must be between 50 and 100% of IN (usually approx. 70%)

• No premature tripping with the test instrument, because testing is begin at 30% residual current (if no biasing current occurs within the system).

* nur MTECH

Clockwise Counter-Clockwise

RCD/FI TableType of Differential Current

Correct RCCB FunctionType AC Type A, F Type B*/

B+*Type EV*

Alternating current

Suddenly occurring

4 4 4 4Slowly rising

Pulsating di-rect current

Suddenly occurring

4 4 4Slowly rising

Direct current 4 4

Direct current up to 6 mA 4

IN

3-------

IN (measurement for up to 1000 ms)

ta

Ia

T


Test StandardThe following must be substantiated per DIN VDE 0100,part 600: 2008:– Contact voltage occurring at nominal residual current may not

exceed the maximum allowable value for the system.– Tripping of the RCCB must occur within 400 ms (1000 ms for

selective RCDs) at nominal residual current.

Important Notes• The PROFITEST MASTER allows for simple measurements at all

types of RCDs. Select RCD, SRCD, PRCD etc.• Measurement must be executed at one point only per RCD

(RCCB) within the connected electrical circuits. Low-resistance continuity must be substantiated for the protective conductor at all other connections within the electrical circuit (RLO or UB).

• The measuring instruments often display 0,1 V contact voltage in TN systems due to low protective conductor resistance.

• Be aware of any biasing currents within the system. These may cause tripping of RCDs during measurement of contact voltage UB, or may result in erroneous displays for measurements with rising current: Display = IF - Ibiasing

• Selective RCDs (RCD S) identified with an can be used as the sole means of protection for automatic shutdown if they adhere to the same shutdown conditions as non-selective RCDs (i.e. ta < 400 ms). This can be substantiated by measur-ing shutdown time.

• Type B RCDs may not be connected in series with type A RCDs.

NotePremagnetizationThe 2-pole adapter is only provided for AC measure-ments. Suppression of RCD tripping by means of pre-magnetization with DC current is only possible via a country-specific plug insert, e.g. SCHUKO, or a 3-pole adapter.

Measurement With or Without ProbeMeasurements can be performed with or without a probe.Measurements with probe require that both probe and reference earth are of like potential. This means that the probe must be positioned outside of the resistance area of the earth electrode (RE) at the RCD.The distance between the earth electrode and the probe should be at least 20 meters.The probe is connected with a 4 mm contact protected plug.In most cases this measurement is performed without probe.

Attention!!The probe is part of the measuring circuit and may carry a current of up to 3.5 mA in accordance with VDE 0413.

Testing for the absence of voltage at the probe can be performed with the UPROBE function (see also section 6.1 on page 14).

7.1 Measuring Contact Voltage (with reference to nominal residual current) with 1/3 Nominal Residual Current and Tripping Test with Nominal Residual Current

Select the Measuring Function

Connection

Set parameters for IN

S

IN

Nom. residual current: 10...500 mAType 1: RCD, SRCD, PRCD ...

Nominal current: 6 ... 125 A

* Type B/B+/EV = AC/DC sensitive

Type 2: AC , A/F , B/B+ *, EV

Phase displacement: 0°/180°

X times tripping current:

Negative/positive half-waveNegative/positive direct current

1, 2, 5

Waveform:

Connection:Without/with probe

Type of system:TN/TT, IT

Contact voltage:

time to trip:

< 25 V, < 50 V, < 65 V


1) Measuring Contact Current Without Tripping the RCD

Measuring MethodThe instrument uses a measuring current of only 1/3 nominal residual current for the determination of contact voltage UIN which occurs at nominal residual current. This prevents tripping of the RCCB.This measuring method is especially advantageous, because contact voltage can be measured quickly and easily at any electrical outlet without tripping the RCCB.The usual, complex measuring method involving testing for the proper functioning of the RCD at a given point, and subsequent substantiation that all other systems components requiring pro-tection are reliably connected at low resistance values to the selected measuring point via the PE conductor, is rendered unnecessary.

N-PE Reversal Test An additional test is executed which deter-mines whether or not N and PE have been reversed. If reversal is detected, the popup window shown at the right appears.

Attention!!In order to prevent the loss of data in data processing systems, perform a data backup before starting the measurement, and switch off all power consumers.

Start Measurement

Amongst other values, contact voltage UIN and calculated earthing resistance RE appear at the display panel.

NoteThe measured earthing resistance value RE is acquired with very little current. More accurate results can be obtained with the selector switch in the RE position. In the case of systems with RCCBs, the DC + function can be selected.

Unintentional Tripping of the RCD due to Biasing Current within the SystemThese can be measured by executing a voltage measurement with the measuring adapter (2-pole). If bias currents should occur, they can be measured with the help of a current transformer clamp as described in section 13.1 on page 39. The RCCB may be tripped during testing of contact voltage if extremely large biasing currents are present within the system, or if a test current was selected which is too great for the RCCB.After contact voltage has been measured, testing can beperformed to determine whether or not the RCCB is tripped within 400 ms, or 1000 ms, at nominal residual current.

Unintentional Tripping of the RCD due to Leakage Current in the Measuring CircuitMeasurement of contact voltage with 30% nominal residual current does not normally trip an RCCB. However, the trip limit may be exceeded as a result of leakage current in the measuring circuit, for example due to interconnected power consumers with EMC circuits such as frequency converters and PCs.

2) Tripping Test after the Measurement of Contact VoltageÐ Press the IN key before on-time has expired (30 seconds).

The tripping test need only be performed at one measuring point for each RCCB.

If the RCCB is tripped at nominal residual current, the MAINS/NETZ LED blinks red (line voltage disconnected) and time to trip ta and earthing resistance RE, as well as other values, appear at the display panel.If the RCCB is not tripped at nominal residual current, the RCD/FI LED lights up red.

Contact Voltage Too HighIf contact voltage UIN, which has been measured with 1/3 nominal residual current IN and extrapolated to IN, is > 50 V (> 25 V), the UL/RL LED lights up red.If contact voltage UIN exceeds 50 V (25 V) during the measuring sequence, safety shut-down occurs.

NoteSafety Shut-down: At up to 70 V, a safety shut-down is tripped within 3 seconds in accordance with IEC 61010.

Contact voltages of up to 70 V are displayed. If contact voltage is greater than 70 V, UIN > 70 V is displayed.

Limit Values for Allowable, Continuous Contact VoltageThe limit for allowable, continuous contact voltage is equal to UL = 50 V for alternating voltages (international agreement). Lower values have been established for special applications (e.g. medical applications UL = 25 V).

Attention!!If contact voltage is too high, or if the RCCB is not tripped, the system must be repaired (e.g. earthing resistance is too high, defective RCCB etc.)!

3-Phase Current ConnectionsFor proper RCD testing at three-phase current connections, the tripping test must be conducted for one of the three phase con-ductors (L1, L2 and L3).

Inductive Power ConsumersVoltage peaks may occur within the measuring circuit if inductive consumers are shut down during an RCCB trip test. If this is the case, the test instrument may display the following message: “Check test setup”. If this message appears, switch all power consumers off before performing the trip test. In extreme cases, one of the fuses in the test instrument may blow, and/or the test instrument may be damaged.


7.2 Special Testing for Systems and RCCBs

7.2.1 Testing Systems and RCCBs with Rising Residual Current (alternating current) for RCDs type AC, A/F, B/B+ and EV

Measuring MethodThe instrument generates a continuously rising residual current of (0.3 ... 1.3) IN within the system for the testing of RCDs.The instrument stores the contact voltage and tripping current values which were measured at the moment tripping of the RCCB occurred, and displays them.One of two contact voltage limit values, UL = 25 V or UL = 50 V/65 V, can be selected for measurement with rising residual current.


Connection

Set parameters for IF

Start Measurement

Measuring SequenceAfter the measuring sequence has been started, the test current generated by the instrument is continuously increased starting at 0.3 times nominal residual current, until the RCCB is tripped. This can be observed by viewing gradual filling of the triangle at I.If contact voltage reaches the selected limit value (UL = 65 V, 50 V or 25 V) before the RCCB is tripped, safety shut-down occurs. The UL/RL LED lights up red.

NoteSafety shut-down: At up to 70 V, a safety shut-down is tripped within 3 seconds in accordance with IEC 61010.

If the RCCB is not tripped before the rising current reaches nominal residual current IN, the RCD/FI LED lights up red.

Attention!!If biasing current is present within the system during measurement, it is superimposed onto the residual current which is generated by the instrument and influences measured values for contact voltage and tripping current. See also section 7.1.

EvaluationAccording to DIN VDE 0100, part 600, rising residual current must, however, be used for measurements in the evaluation of RCDs, and contact voltage at nominal residual current IN must be calculated from the measured values.The faster, simpler measuring method should thus be taken advantage of (see section 7.1).

7.2.2 Testing Systems and RCCBs with Rising Residual Current (direct current) for RCDs type B/B+ und EV (only MTECH)

In accordance with VDE 0413, part 6, it must be substantiated that, with smooth direct current, residual operating current is no more than twice the value of rated residual current IN. A continu-ously rising direct current, beginning with 0.2 times rated residual current IN, must be applied to this end. If current rise is linear, ris-ing current may not exceed twice the value of IN within a period of 5 seconds.Testing with smoothed direct current must be possible in both test current directions.

IF

Nom. residual current: 10...500 mA

Type 1: RCD, SRCD, PRCD ...


* Type B/B+/EV = AC/DC sensitive

Typ 2: AC , A/F , B/B+ *, EV

SineNegative/positive direct current

Waveform:

Connection:Without/with probe

Type of system:TN/TT, IT

Contact voltage:

Trip limits:


7.2.3 Testing RCCBS with 5 IN The measurement of time to trip is performed here with 5 times nominal residual current.

NoteMeasurement performed with 5 times nominal residual current is required for testing RCCBs and G in the manufacturing process. They are used for personal safety as well.

Measurement can be started with the positive half-wave at “0°”, or with the negative half-wave at “180°”.Both measurements must nevertheless be performed. The longer of the two tripping times is decisive regarding the condition of the tested RCCB. Both values must be less than 40 ms.


Set Parameters – Positive or Negative Half-Wave

Set Parameters – 5 Times Nominal Current

NoteThe following limitations apply when selecting X times tripping current relative to nominal current: 300 mA: 1 x IN , 2 x IN 500 mA: 1 x IN

Start Measurement

7.2.4 Testing RCCBs which are Suited for Pulsating DC Residual Current

In this case, RCCBs can be tested with either positive or negative half-waves. The standard calls for tripping at 1.4 times nominal current.



Set Parameters – Testing with and without Biasing Current

Non-Trip Test (Testing with Biasing Current): If RCD is tripped to early during the non-trip test with 50 % IN for 2 seconds , i. e. prior to actual tripping, the popup window shown at the right appears.


NoteAccording to DIN EN 50178 (VDE 160), only type B RCCBs (AC-DC sensitive) can be used for equipment with greater than 4 kVA which is capable of generating smooth DC residual current (e.g. frequency converters). Tests with pulsating DC residual current are not suitable for these RCCBs.

NoteMeasurement is performed with positive and negative half-waves when testing RCCBs during manufacturing. If a circuit is charged with pulsating direct current, the function of the RCCB can be executed with this test in order to assure that the RCCB is not saturated by the pul-sating direct current such that it no longer trips.

S

IN

Negative half-wavePositive half-wave

Waveform:

Negative direct currentPositive direct current


5 times tripping current

IN


Waveform:


X times tripping current:Biasing current 50% IN


7.3 Testing for Special RCDs

7.3.1 Systems with Type RCD-S Selective RCDsSelective RCDs are used in systems which include two series connected RCCBs which are not tripped simultaneously in the event of a fault. These selective RCDs demonstrate delayed response characteristics and are identified with the symbol .

Measuring MethodThe same measuring method is used as for standard RCCBs (see sections 7.1 on page 16 and 7.2.1 on page 18).If selective RCDs are used, earthing resistance may not exceed half of the value for standard RCCBs.For this reason, the instrument displays twice the measured value for contact voltage.


Set Parameters – Selective

Start Measurement

Tripping TestÐ Press the IN key. The RCCB is tripped. Blinking bars appear

at the display panel, which is followed by the display of time to trip tA and earthing resistance RE.

The tripping test need only be performed at one measuring point for each RCCB.

NoteSelective RCDs demonstrate delayed response characteristics. Tripping performance is briefly influenced (up to 30 s) due to pre-loading during measurement of contact voltage. In order to eliminate pre-loading caused by the measurement of contact voltage, a waiting period must be observed prior to the tripping test. After the measuring sequence has been started (tripping test), blinking bars are displayed for approximately 30 sec-onds. Times of up to 1000 ms are allowable. The tripping test is performed immediately by pressing key IN.

7.3.2 PRCDs with Non-Linear Type PRCD-K ElementsThe PRCD-K is a portable differential current system with elec-tronic residual current evaluation which, being conceived as an intermediate cable device, switches at all poles (L/N/PE). The PRCD-K also includes undervoltage tripping and protective con-ductor monitoring.As the PRCD-K features undervoltage tripping, it must be oper-ated at line voltage, and measurements may only be performed when it is activated (PRCD-K switches at all poles).

Terminology (from DIN VDE 0661)Portable protective devices are circuit breakers which can be con-nected between power consuming devices and permanently installed electrical outlets by means of standardized plug-and-socket devices.A reusable, portable protective device is a protective device which is designed such that it can be connected to movable cables.Please be aware that a non-linear element is usually integrated into PRCDs, which leads to immediate exceeding of the greatest allowable contact voltage during UI measurements (UI greater than 50 V).PRCDs which do not include a non-linear element must be tested in accordance with section 7.3.3 on page 21.

Objective (from DIN VDE 0661)Portable residual current devices (PRCDs) serve to protect per-sons and property. They allow for the attainment of increased lev-els of protection as provided by protective measures utilized in electrical systems for the prevention of electrical shock as defined in DIN VDE 0100, part 410. They are to be designed such that they can be installed by means of a plug attached directly to the protective device, or by means of a plug with a short cable.

S

IN IFor

Type 1:


Measuring MethodThe following can be measured, depending upon the measuring method:• Time to trip tA: tripping test with nominal residual current IN

(the PRCD-K must trip at half the nominal current)• Tripping current I: testing with rising residual current IF


Connection

Set Parameters – PRCD with Non-Linear Elements

Start Measurement

7.3.3 SRCDs, PRCD-S (SCHUKOMAT, SIDOS or comparable)RCCBs from the SCHUKOMAT, SIDOS series, as well as others which are of identical electrical design, must be tested after selecting the corresponding parameter. Monitoring of the PE conductor is performed for RCDs of this type. The PE conductor is monitored by the summation current transformer. If residual current flows from L to PE, tripping current is cut in half, i.e. the RCCB must be tripped at 50% nominal residual current IN.Whether or not PRCDs and selective RCDs are of like design can be tested by measuring contact voltage UIN. If a contact voltage UIN of greater than 70 V is measured at the PRCD of an otherwise error-free system, the PRCD more than likely contains a non-linear element.

PRCD-SPRCD-S (Portable Residual Current Device – Safety) is a special portable protective system with protective conductor recognition and/or monitoring. The device serves to protect persons from electrical accidents in the low voltage range (130 ... 1000 V). The PRCD-S must be suited for industrial applications and is installed like an extension cable between an electrical consumer – usually an electric tool – and a mains socket.


Set Parameters – SRCD / PRCD

Start Measurement

IN IFor

Type 1:

PRCD-K

IN IFor

Type 1:

SRCD


7.3.4 Type G or R RCCBsIn addition to standard RCCBs and selective RCDs, the special characteristics of the type G RCCB can also be tested with the instrument.The type G RCCB is an Austrian specialty and complies with the ÖVE/ÖNORM E 8601 device standard. Erroneous tripping is minimized thanks to its greater current carrying capacity and short-term delay.


Set Parameters – Type G/R (VSK)

Contact voltage and time to trip can be measured in the G/R-RCD selector switch position.

NoteIt must be observed that time to trip for type G RCCBs may be as long as 1000 ms when measurement is made at nominal residual current. Set the corresponding limit value.

Ð Then select 5 x IN in the menu and repeat the tripping test with the positive half-wave at 0° and the negative half-wave at 180°. The longer of the two tripping times is decisive regard-ing the condition of the tested RCCB.


Set Parameters – 5 Times Nominal Current


Start Measurement

In both cases, tripping time must be between 10 ms (minimum delay time for type G RCCBs!) and 40 ms. Type G RCCBs with other nominal residual current values must be tested with the corresponding parameter setting under menu item IN. In this case as well, the limit value must be appropriately adjusted.

NoteThe parameter setting RCD for selective RCCBs is not suitable for type G RCCBs.

IN

Type 1:


Waveform:



5 times tripping current

G / R

S


7.4 Testing Residual Current Circuit Breakers in TN-S Systems

Connection

RCCBs can only be used in TN-S systems. An RCCB would not work in a TN-C system because PE is directly connected to the neutral conductor in the outlet (it does not bypass the RCCB). This means that residual current would be returned via the RCCB and would not generate any differential current, which is required in order to trip the RCCB.

As a rule, the display for contact voltage is also 0.0 V, because the nominal residual current of 30 mA together with minimal loop resistance result in a very small voltage value:

Measuring resolution is 0.1 V, and the display value is thus rounded down to 0.0 V.

7.5 Testing Residual Current Circuit Breakers (RCDs) in ITSystems with High Wiring Capacitance (e.g. in Norway)

The system type (TN/TT or IT) can be adjusted for UIN (IN, ta) RCD tests and for earth resistance measurements (RE).For measurements in IT systems, a probe is indispensable as the resulting contact voltage UIN cannot be measured without a probe.If „2-pole“ has been adjusted for connection type instead of „2-pole with probe“ and if sys-tem type IT is then selected, the following error message pops up:

Set Parameters – Select System Type

Start Measurement UIN RE IN 1 30mA 30mV 0 03V,= = = =

Netzform:


8 Testing of Breaking Requirements Overcurrent Protective Devices, Measurement of Loop Impedance and Determination of Short-Circuit Current (functions ZL-PE and IK)

Testing of overcurrent protective devices includes visual inspection and measurement. The PROFITEST MASTER is used to to perform measurements.

Measuring MethodLoop impedance ZL-PE is measured and short-circuit current IK is ascertained in order to determine whether or not breaking requirements for protective devices have been fulfilled.Loop impedance is the resistance within the current loop (utility company plant – phase conductor – protective conductor) when a short-circuit to an exposed conductive part occurs (conductive connection between phase conductor and protective conductor). Short-circuit current magnitude is determined by the loop impedance value. Short-circuit current IK may not fall below a predetermined value set forth by DIN VDE 0100, so that reliable breaking of the protective device (fuse, automatic circuit breaker) is assured.Thus the measured loop impedance value must be less than the maximum allowable value.Tables containing allowable display values for loop impedance, as well as minimum short-circuit current display values for ampere ratings for various fuses and circuit breakers can be found in the help texts, as well as in section 20 beginning on page 64. Maximum device error in accordance with VDE 0413 has been taken into consideration in these tables (see also section 8.2).In order to measure loop impedance ZL-PE, the instrument uses a test current of 0.65 A to 4 A (60 ... 550 V) dependent upon line voltage and line frequency. The test has a duration of max. 1200 ms at 16 Hz.

If dangerous contact voltage occurs during measurement (> 50 V), safety shutdown occurs.The test instrument calculates short-circuit current IK based on measured loop impedance ZL-PE and line voltage. Short-circuit current calculation is made with reference to nominal line voltage for line voltages which lie within the nominal ranges for 120 V, 230 V and 400 V systems. If line voltage does not lie within these nominal ranges, the instrument calculates short-circuit current IK based upon prevailing line voltage and measured loop resistance ZL-PE.

Measuring Method with Suppression of RCD TrippingPROFITEST MTECH tester provides the opportunity of measuring loop impedance within systems which are equipped with RCCBs.The test instru-ment generates a DC current to this end, which satu-rates the RCCB’s magnetic circuit. The test instru-ment then super-imposes a measur-ing current which only demonstrates half-waves of like polarity. The RCCB is no longer capa-ble of detecting this measuring current, and is consequently not tripped during measurement.

A four conductor measuring cable is used between the instrument and the test plug. Cable and measuring adapter resistance is automatically compensated for during measurement and does not effect measurement results.


Connection

NoteLoop impedance should be measured for each electrical circuit at the farthest point, in order to ascertain maximum loop impedance for the system.

NotePremagnetizationThe 2-pole adapter is only provided for AC measure-ments. Suppression of RCD tripping by means of pre-magnetization with DC current is only possible via a country-specific plug insert, e.g. SCHUKO, or a 3-pole adapter.

NoteObserve national regulations, for example the necessity of conducting measurements without regard for RCCBs in Austria.

3-Phase Current ConnectionsMeasurement of loop impedance to earth must be performed at all three phase conductors (L1, L2, and L3) for the testing of overcurrent protective devices at three phase outlets.

Start

t1 t3

Measure

t2

Operation

RCD disabled!

T

IF /mA

Suppression of RCD tripping for RCCBs which are sensitive to pulsating current

ZL-PE


8.1 Measurements with Suppression of RCD Tripping

8.1.1 Measurement with Positive Half-Waves (PROFITEST MTECH only)Measurement by means of half-waves plus direct current makes it possible to measure loop impedance in systems which are equipped with RCCBs.For DC measurement with half-waves you can choose between two alternatives:DC-L: lower premagnetization current allowing for faster measu-

rementDC-H: higher premagnetization current, therefore higher protec-

tion against tripping of RCD


Set Parameters

* Parameters which are only used for report generation and do not influence the measurement

Sine (full wave) Setting for electric circuits without RCD15 mA sinusoidal Setting only for motor protection switch

with low nominal currentDC+half-wave Setting for electric circuits with RCD

Semiautomatic Measurement in Multi-Pole Systems

* See section 5.8 regarding AUTO parameter.

Start Measurement

8.2 Evaluation of Measured ValuesThe maximum allowable loop impedance ZL-PE which may be dis-played after allowance has been made for maximum operating measurement error (under normal measuring conditions) can be determined with the help of Table 1 on page 64. Intermediate val-ues can be interpolated.The maximum allowable nominal current for the protective device (fuse or circuit breaker) for a nominal line voltage of 230 V, after allowance has been made for the maximum measuring error of the device, can be determined with the help of Table 6 on page 65 based upon measured short-circuit current (corresponds to DIN VDE 0100, part 600).

Special Case Suppression of Limit ValueThe limit value cannot be determined. The test person is requested to evaluate the measured values himself and to acknowledge or reject them via softkeys.Measurement passed: Key 4Measurement failed: Key X

The measured value cannot be stored until it has been evaluated by the test person.

ZL-PE

Nominal current: 2... 160 A

Tripping characteristics:

Cross-section*: 1.5 ... 70 sq. mm

Cable types*: NY..., H03... - H07...

Number of wires*: 2 ... 10-strand

A, B/L, C/G, D, E, H, K, gL/gG, gL/G

SineWaveform:

15 mA sinusoidalDC-L offset and positive half-wave

Contact Voltage:

DC-H offset and positive half-wave

Measurements between Lx-PE / Lx-N / Lx-Ly / AUTO*

2-pole measurement (selection only relevant for report

where x, y = 1, 2, 3

generation):


8.3 Settings, Short-circuit current Calculation – Parameter IK

Short-circuit current IK is used to test shutdown by means of an overcurrent protective device. In order for an overcurrent protec-tive device to be tripped on time, short-circuit current IK must be greater than tripping current Ia (see table in section section 20.1). The variants which can be selected with the “Limits” key have the following meanings:IK: Ia The measured value displayed for ZL-PE is used with-

out any correction to calculate IK.IK: Ia+% The measured value displayed for ZL-PE is corrected

by an amount equal to the test instrument’s measuring uncertainty in order to calculate IK.

IK: 2/3 Z In order to calculate IK, the measured value displayed for ZL-PE is corrected by an amount corresponding to all possible deviations (these are defined in detail by VDE 0100, part 600, as Zs(m) 2/3 x U0/Ia).

IK Short-circuit current calculated by the instrument (at nominal voltage)

Z Fault loop impedanceIa Tripping current

(see data sheets for circuit breakers / fuses)% Test instrument intrinsic error

Special Case Ik > Ikmax see page 27.

9 Measuring Line Impedance (ZL-N function)Measuring Method (internal line resistance measurement)Supply impedance ZL-N is measured by means of the same method used for loop impedance ZL-PE (see section 8 on page 24). However, the current loop is completed via neutral conductor N rather than protective conductor PE, as is the case with loop impedance measurement.


Connection, TT System

Connection, TN-S Sys-tem

Set Parameters

Limit Value:

IK < Limit Value

UL RL

ZL-N


Cross-section*: 1.5 ... 70 sq. mm

Cable types*: NY..., H03... - H07...

Number of wires*: 2 ... 10-strand

Country-specific Plug Insert, e.g. SCHUKO

2-Pole Adapter

Tripping characteristics: A, B/L, C/G, D, E, H, K, gL/gG, gL/G


IK Short-circuit current calculated by the instrument (at nominal voltage)

Z Earth-fault loop impedanceIa Tripping current

(see data sheets regarding circuit breakers / fuses)% Test instrument intrinsic error

TAB Limit values in accordance with technical connection con-ditions for connection to the low-voltage mains between the distribution network and the measuring device

DIN Limit value per DIN 18015-1: U < 3% between measuring device and consumer

VDE Limit value per DIN VDE 0100-520: U < 4% between distribution network and consumer (adjustable up to 10% in this case)

Special Case Ik > Ikmaxf the value for the short-circuit current is beyond the measured values defined in PROFITEST MASTER, it is indicated by > IK-max“.In this case, it will be necessary to evaluate the measuring result manually.

Start Measurement

Significance and Display of U (per DIN VDE 100, part 600)Voltage drop from the intersection of the distribution network and the consumer system to the point of connection of an electrical power consumer (electrical outlet or device connector terminals) should not exceed 4% of nominal line voltage.Voltage drop calculation:U = ZL-N • nominal current of the fuseU as % = U / UL-N

Display of UL-N (UN / fN)If the measured voltage value lies within a range of 10% of the respective nominal line voltage of 120 V, 230 V or 400 V, the respectively corresponding nominal line voltage is displayed. In the case of measured values outside of the 10% tolerance, the actual measured value is displayed.

q ZOFFSET ON/OFF Voltage Drop up to the Transfer Point or the Measuring Device

Proceed as follows:Ð Set ZOFFSET from OFF to ON. “ZOFFSET = 0.00 ” appears in the

footer.Ð Connect the 2-pole adapter to the transfer point (measuring

device / meter).Ð Start offset measurement with IN.

Measuring ZOFFSET

ZOFFSET x.xx appears in the footer at the display, where x.xx is a value within a range of 0.00 to 9.99 . This value is now sub-tracted for the calculation of U for all subsequent ZLN measure-ments, insofar as the ZOFFSET ON/OFF softkey has been set to ON.ZOFFSET must be recalculated in the following cases:• After switching from ON to OFF and back again.

Error messages appear in a popup window in the following cases:– ZOFFSET > 10 – ZOFFSET > Zx (offset value greater than the measured value at

the power consuming system)

Limit value:

IK < limit value

UL RL

IK

Limit value:

U % > Limit / Grenzwert

UL RL

U


10 Earthing Resistance Measurement (function RE)Earthing resistance RE is important for automatic shutdown in system sections. It must have a low value in order to assure that high short-circuit current flows, and that the system is shut down reliably by the RCCB in the event of a fault.

Test SetupEarthing resistance (RE) is the sum of earth electrode resistance and earth conductor resistance. Earthing resistance is measured by applying an alternating current via the earth conductor, the earth electrode and earth electrode resistance. This current, as well as voltage between the earth electrode and a probe, are measured.The probe is connected to the probe connector socket (17) with a 4 mm contact protected plug.

Direct Measurement with ProbeDirect measurement of earthing resistance RE is only possible within a measuring circuit which includes a probe. However, this means that the probe and reference earth must be of like potential, i.e. that they are positioned outside of the earth electrode resistance area. The distance between the earth electrode and the probe should be at least 20 m.

Measurement Without ProbeIn many cases, especially in extremely built-up areas, it is difficult, or even impossible, to set a measuring probe. In such cases, earthing resistance can be measured without a probe. In this case, however, the resistance values for the operational earth electrode RB and phase conductor L are also included in the measurement results.

Measuring Method (with probe)The instrument measures earthing resistance RE by means of the ammeter-voltmeter test (earth electrode loop resistance). Resistance RE is calculated from the quotient of voltage UE and current IE, where UE is between earth electrode and the probe. The test current which is applied to earthing resistance is controlled by the instrument and demonstrates the following values in the various measuring ranges:1 to 10 k:4 mA; 0 to 1 k: 40 mA; 0 to 100 : 0.4 A and 0 to 10 : > 0.65 A to approx. 3.4 A (voltage-dependent). A voltage drop is generated which is proportional to earthing resistance.

NoteMeasurement cable and measuring adapter resistance are compensated for automatically during measurement and have no effect on measurement results.

If dangerous contact voltages occur during measurement (> 50 V), the measurement is interrupted and safety shut-down occurs.

Probe resistance does not effect measurement results and may be as high as 50 k.

Attention!!The probe is part of the measuring circuit and may carry a current of up to 3.5 mA in accordance with VDE 0413.

Characteristic Values of Earth Resistance Measurement (Mains Powered)• Measuring range 0 ... 10 k

Measurement with or without earth electrode voltage depending upon entered parameters and the selected type of connection:

* This parameter results in automatic setting to probe connection.

Measuring Method with Suppression of RCD TrippingPROFITEST MTECH tester provides the opportunity of measuring loop impedance with positive half-waves. With this method, you’ll be able to measure loop impedances within systems which are equipped with RCCBs.The test instru-ment generates a DC current to this end, which satu-rates the RCCB’s magnetic circuit. The test instru-ment then super-imposes a measur-ing current which only demonstrates half-waves of like polarity. The RCCB is no longer capa-ble of detecting this measuring current, and is consequently not tripped during measurement.

A four conductor measuring cable is used between the instrument and the test plug. Cable and measuring adapter resistance is automatically compensated for during measurement and does not effect measurement results.

Special Case: Manual Measuring Range Selection (test current selection)(R AUTO, R = 10 k (4 mA), 1 k (40 mA), 100 (0.4 A), 10 (> 0.65 A), 10 /UE)

NoteWhen the measuring range is selected manually, accuracy values are only valid as of 5% of the upper range limit (except for the 10 range; separate display for small values).

Evaluation of Measurement ValuesThe maximum allowable displayed resistance values which assure that the required earthing resistance is not exceeded, and for which maximum device operating error has already been taken into consideration (at nominal conditions of use), can be determined with the help of Table 2 on page 64. Intermediate values can be interpolated.

Range Connection Measuring Functions

xx / xx kNo probe measurementNo UE measurement

10 / UE *Probe measurement activatedUE is measured

xx / xx k

Probe measurement activatedNo UE measurement

Clamp measurement activatedNo UE measurement

Start

t1 t3

Measure

t2

Operation

RCD disabled!

T

IF /mA

Suppression of RCD tripping for RCCBs which are sensitive to pulsating current


10.1 Measuring with Probe

Earth Resistance Measurement with Probe (Mains Powered) – Connection Circuit Diagram

KeyRB Operational earth

RE Earth resistance

RX Earth resistance via equipotential bonding systems

RS Probe resistance

PAS Equipotential bonding strip

RE Overall earth resistance (RE1//RE2//water pipe)

Measurement RE


Connection

Connected components: 2-pole adapter and probe

Set parametersq Measuring range: AUTO,

10 k (4 mA), 1 k (40 mA), 100 (0,4 A), 10 (> 0.65 A) In systems with RCCBs, resistance and/or test current must be chosen such that they are below the tripping current (½ IN).

q Connection type: 2 pole adapter + probeq Contact voltage: UL < 25 V, < 50 V, < 65 V, freely adjustable

voltage, see section 5.7q Transformer ratio: without significance in this case

Start Measurement

NoteThe following diagram appears if the 2-pole adapter is connected incorrectly.

PROFITEST

water pipe

SE2E1B

RE1

UProbe

I----------------=

RE

Limit value:

RE < limit value

UL RL


10.2 Measuring Without Probe

Earth Resistance Measurement without Probe (Mains Powered) – Connection Circuit Diagram

KeyRB Operational earth

RE Earth resistance

Ri Internal resistance


RS Probe resistance


RE Overall earth resistance (RE1//RE2//water pipe)

In the event that it is impossible to set a probe, earthing resis-tance can be estimated by means of an “earth loop resistance measurement” without probe.The measurement is performed exactly as described in section 10.1, “Measuring with Probe”, beginning on page 29. However, no probe is connected to the probe connector socket (17).The resistance value RELoop obtained with this measuring method also includes operational earth electrode resistance RB and resistance at phase conductor L. These values must be deducted from the measured value in order to determine earthing resistance.If conductors of equal cross section are assumed (phase conduc-tor L and neutral conductor N), phase conductor resistance is half as great as supply impedance ZL-N (phase conductor + neutral conductor).Supply impedance can be measured as described in section 9 beginning on page 26.In accordance with DIN VDE 0100, the operational earth elec-trode RB must lie within a range of “0 to 2 ”.

1) Measurement: ZLN corresponds to Ri = 2 · RL

2) Measurement: ZL-PE corresponds to RLoop

3) Calculation: RE1 corresponds to ZL-PE – 1/2 · ZL-N; for RB = 0

The value for operational earth conductor resistance RB should be ignored in the calculation of earthing resistance, because it is generally unknown.The calculated earthing resistance thus includes operational earth conductor resistance as a safety factor.


Set parametersq Measuring range: AUTO,

10 k (4 mA), 1 k (40 mA), 100 (0,4 A), 10 (> 0.65 A) In systems with RCCBs, resistance and/or test current must be chosen such that they are below the tripping current (˝½ IN).

q Connection type: 2-pole adapterq Transformer ratio: without significance in this caseq Contact voltage: UL < 25 V, < 50 V, < 65 V

Start Measurement


PROFITEST

Ri

E2E1B

water pipe

RE

Limit value:

RE < Limit value

UL RL


10.3 Measuring Earth Electrode Potential (function UE)

Earth Resistance Measurement with Probe (Mains Powered) – Connection Circuit Diagram

This measurement is only possible with a probe, see section 10.1. Earth electrode potential UE is the voltage which occurs at the earth electrode between the earth electrode terminal and refer-ence earth if a short-circuit occurs between the phase conductor and the earth electrode. The measurement of earth electrode potential is required by Swiss standard SEV 3755.

Measuring MethodIn order to determine earth electrode potential the instrument first measures earth electrode loop resistance RELoop, and immediately thereafter earthing resistance RE. -The instrument stores both values and then calculates earth electrode potential with the following equation:

The calculated value is displayed at the display panel.


Connection

Connected components: 2-pole adapter and probe

Set parametersq Measuring range: 10 / UEq Connection type: 2-pole adapter + probeq Contact voltage: UL < 25 V, < 50 V, < 65 V, freely adjustable

voltage, see section 5.7q Transformer ratio: without significance in this case

Start Measurement


PROFITEST

Riwater pipe

SE2E1B

UE

UN RE

RELoop--------------------=

RE

Limit value:

RE < limit value

UL RL


10.4 Selective Earth Resistance Measurement with Accessory Current Clamp SensorAs an alternative to the classical measuring method, it is possible to perform measurements with a current clamp sensor.

Selective Earth Resistance Measurement (Mains Powered) – Connection Circuit Diagram

Key figure belowRB Operational earth

RE Earth resistance

RL Conductor resistance


RS Probe resistance


RE Overall earth resistance (RE1 // RE2 // water pipe)

Measurement without clamp: RE = RE1 // RE2

Measurement with clamp: RE = RE2 =


Connection

Connected components: 2-pole adapter, clamp sensor and probe

Set parameters at the test instrumentq Connection type: 2-pole adapter + clamp sensor

After parameter selection: automatic setting to 10 measuring range and transformer ratio of 100 mV/A

q Transformer ratio of current clamp sensor: see table belowq Measuring range (test current selection):

10 k (4 mA), 1 k (40 mA), 100 (0.4 A), 10 (> 0.65 A) The DC + function can be selected for systems with RCCB.

q Contact voltage: UL < 25 V, < 50 V, < 65 V, freely selectable voltage, see section 5.7

Setting Parameters at the Current Clamp Sensorq Measuring range of current clamp sensor: see table below

Select the Measuring Range at the Current Clamp Sensor

Important Instructions Regarding the Use of the Current Clamp Sensor• Use only the METRAFLEX P300 or Z312A current clamp

sensor for this measurement.• Read and adhere strictly to the operating instructions for the

METRAFLEX P300 current clamp sensor, as well as the safety precautions contained therein.

• Be sure to observe the direction of current flow (see arrow on the current clamp sensor).

• The clamp must be securely attached for use. The sensor must not be permitted to move during measurement.

• The current clamp sensor may only be used at an adequate distance from strong, extraneous fields.

• Before use, always inspect the electronics housing, the connector cable and the flexible current sensor for damage.

• In order to prevent electrical shock, keep the surface of the METRAFLEX clean and free of contamination.

• Before use, make sure that the flexible current sensor, the connector cable and the electronics housing are dry.

PROFITEST

water pipe

SE2E1B

USonde

IZange-----------------

RE

Tester METRAFLEX P300 clamp TesterTransforma-

tion Ratio Parameter

Switch Measuring Range

Measuring Range

1:11 V / A 3 A (1 V/A) 3 A 0.5 ... 100

mA1:10

100 mV / A 30 A (100 mV/A) 30 A 5 ... 999 mA

1:10010 mV / A 300 A (10 mV/A) 300 A 0.05 ... 10 A


Start Measurement

If you have changed the transformer ratio at the test instrument, a popup window appears prompting you to enter this new setting to the connected current clamp sensor as well.

i: Prompt regarding currently selected transformer ratio at the tester

REClamp: Selective earth resistance measured with clampREProbe: Earth resistance measured with probe, comparative

value



11 Measuring Insulation Resistance

11.1 General


Connection Via 2-pole adapter or test plug!

NoteIf you use the test plug together with a plug insert, insulation resistance is only measured between the phase conductor terminal designated “L” and the protective conductor terminal PE!

NoteChecking the Measurement Cables prior to a series of measurementsBefore performing insulation measurement, the test probes on the measurement cables should be short-circuited in order to assure that the instrument displays a value of less than 1 k. In this way, incorrect connection can be avoided and broken measurement cables can be detected.

Set Parameters

* Freely adjustable voltage, see section 5.7

Semiautomatic Measurement in Multi-Pole Systems

* Refer to section 5.8 regarding AUTO parameter.

Limit Values for Constant Test Voltage

Limit Currents for Ramp Function

q Test VoltageA test voltage which deviates from nominal voltage, and is usually lower, can be selected for measurements at sensitive components, as well as systems with voltage limiting devices. q Voltage Type The “UINS ” rising test voltage function (ramp function) is used to detect weak points in the insulation, as well as to determine response voltage for voltage limiting components. After briefly pressing the ON/START key, test voltage is continuously increased until specified nominal voltage UN is reached. U is the voltage which is measured at the test probes during and after testing. This voltage drops to a value of less than 10 V after measurement (see section entitled “Discharging the Device Under Test”).Insulation measurement with rising test voltage is ended:• As soon as the specified maximum test voltage UN is reached

and the measured value is stableor• As soon as the specified test current is reached

(e.g. after spark-over occurs at breakdown voltage)Selected maximum test voltage UN, or any available trigger or breakdown voltage, is displayed for UISO.

The constant test voltage function, or constant test voltage, offers two options:• As long as you press and hold the ON/START key, test voltage

UN is applied and insulation resistance RINS is measured. Do not release the key until the measured value has stabilized (in the case of high cable capacitance, it may take several seconds to settle in).Voltage U, which is measured during testing, corresponds to voltage UINS. After releasing the ON/START key, measurement is ended and the last measured values for RINS and UINS are displayed. U drops to a value of less than 10 V after measurement (see section entitled “Discharging the Device Under Test”).

or• After briefly pressing the ON/START key, specified test voltage

UN is read out and insulation resistance RINS is measured. As soon as the measured value is stable (in the case of high cable capacitance, it may take several seconds to settle in), measurement is ended and the last measured values for RINS and UINS are displayed. U is the voltage which is measured at the test probes during and after testing. This voltage drops to a value of less than 10 V after measurement (see section entitled “Discharging the Device Under Test”).

RISO

Voltage type: constant

Test voltage: 50 V / 100 V / 250 V / 500 V / 1000 V / xxx V*

Voltage type: rising/ramp

Earth Leakage Resistance

Measurements between Lx-PE / N-PE / Lx-N / Lx-Ly / AUTO*

2-pole measurement (selection only relevant for report

where x, y = 1, 2, 3

generation):

Limit value:

RINS < Limit value

UL RL

UISO (UINS)

Limit value:

UISO (UINS)

I > ILimit STOP


q Pole Selection Report EntryThe poles between which testing takes place can only be entered here for reporting purposes. The entry itself has no influence on the actual polarity of the test probes or the pole selection.

q Limits – Setting the Limit ValueThe limit value for insulation resistance can be set as desired. If measurement values occur which are below this limit value, the red UL/RL LED lights up. A selection of limit values ranging from 0.5 M to 10 M is available. The limit value is displayed above the measured value.

Start Measurement – Rising Test Voltage (Ramp Function)

Press briefly

NoteWhen selecting „Semiautomatic polarity reversal“ (see section 5.8) the symbol for semiautomatic polarity rever-sal is shown instead of the ramp.

Start Measurement – Constant Test Voltage

Press and hold forpermanent measure-ment

NoteThe instrument’s rechargeable batteries are exposed to excessive stress during insulation resistance measure-ment. When using the “constant test voltage” function, only press and hold the Start t key until the display has become stable.

Special Condition for Insulation Resistance Measurement

Attention!!Insulation resistance can only be measured at voltage-free objects.

If measured insulation resistance is less than the selected limit value, the UL/RL LED lights up.

If an interference voltage of 25 V is present within the system, insulation resistance is not measured. The MAINS/NETZ LED lights up and the message „Interference voltage present“ pops up.

All conductors (L1, L2, L3 and N) must be tested against PE!

Attention!!Do not touch the instrument’s terminal contacts during insulation resistance measurements!

If nothing has been connected to the terminal contacts, or if a resistive load component has been connected for measurement, your body would be exposed to a current of approx. 1 mA at a voltage of 1000 V.The resulting electrical shock is not life endangering. However, the noticeable shock may lead to injury (e.g. resulting from a startled reaction etc.).

Discharging the Device Under Test

Attention!!If measurement is performed at a capacitive object such as a long cable, it becomes charged with up to approximately 1000 V! Touching such objects is life endangering!

When an insulation resistance measurement has been performed on a capacitive object, it is automatically discharged by the instrument after measurement has been completed. Therefore, contact between the object and the instrument may not be inter-rupted. The falling voltage value can be observed at the U display.Do not disconnect the DUT until less than 10 V is displayed for U!

Evaluation of Measurement ValuesThe instrument’s measuring error must be taken into consider-ation in order to assure that the limit values set forth in DIN VDE regulations are not fallen short of. The required minimum display values for insulation resistance can be determined with the help of Table 3 on page 64. These values take maximum device error into consideration (under nominal conditions of use). Intermediate val-ues can be interpolated.


11.2 Special Case: Earth Leakage Resistance (REINS)This measurement is performed in order to determine electrostatic discharge capacity for floor coverings in accordance with EN 1081.


Set Parameters

* Freely adjustable voltage, see section 5.7

Connection and set-up

Ð Rub the floor covering at the point at which measurement is to be performed with a dry cloth.

Ð Place the floor probe 1081onto the point of measurement and load it with a minimum weight of 300 N (30 kg).

Ð Establish a conductive connection between the measuring electrode and the test probe and connect the measuring adapter (2-pole) to an earth contact, e.g. the earthing contact at a mains outlet or a central heating radiator; Prerequisite: safe earth connection.

Start Measurement

The limit value for earth leakage resistance from the relevant regulations applies.

RISO

Voltage type: constant

Test voltage: 50 V / 100 V / 250 V / 325 V / 500 V / 1000 V*

Voltage type: rising/ramp

Earth leakage resistance:

Limit value:

RE(ISO) > Limit value

UL RL

REINS


12 Measuring Low-Value Resistance of up to 100 Ohm (protective conductors and protective equipotential bonding conductors)

According to the regulations, the measurement of low-value resistance at protective conductors, earth conductors or bonding conductors must be performed with (automatic) polarity reversal of the test voltage, or with current flow in one (+ pole to PE) and then the other direction (– pole an PE).

Attention!!Low-value resistance can only be measured at voltage-free objects.


Connection Via 2-pole adapter only!

Set Parameters

q ROFFSET ON/OFF – Compensation for Extension Cables with up to 10

If extension cables are used, their resistance can be deducted automatically from the measurement results. Proceed as follows:Ð Switch ROFFSET from OFF to ON. “ROFFSET = 0.00 ” appears in

the footer.Ð Select a polarity or automatic polarity reversal.Ð Short-circuit the end of the measurement extension cable with

the second test probe at the instrument.Ð Start measurement of offset resistance with IN.

NoteIf the difference between RLO+ and RLO– is greater than 10% during automatic polarity reversal, no offset value is accepted. In all other cases, the lower value is saved as offset value.Maximum offset value is 9.99 . Offset may result in neg-ative resistance values.

Measuring ROFFSET

The ROFFSET x.xx message now appears in the footer at the dis-play, where x.xx is a value between 0.00 and 9.99 . This value is subtracted from the actual measuring results for all subsequent RLO measurements, if the ROFFSET ON/OFF key has been set to ON. ROFFSET must be newly ascertained in the following cases:• during changeover between polarity types• after switching from ON to OFF and back again.

NoteOnly use this function when performing measurements with extension cables. When different extension cables are used, the above described procedure must always be repeated.

q Type / PolarityThe direction in which current flows can be selected here.

q Limits – Setting the Limit ValueThe limit value for resistance can be set as desired. If measured values which exceed this limit occur, the red UL/RL LED lights up. Limit values can be selected within a range of 1.0 to 20 . The limit value is displayed above the measured value.

RLO

ROFFSET: ON OFF

Polarity: +/- to PE

Limit value:

RLO > Limit value

UL RL


Start Measurement

Press and hold for permanent measure-ment

Attention!!The test probes should always be in contact with the DUT before the start key t is activated. If the DUT is charged with voltage, measurement is disabled if the test probes are first placed into contact with the DUT.If you press the Start t key first, and then make contact with the test probes, the external fuse is blown. Which of the two fuses has blown is indicated in the popup window with the error message.

In the event of single-pole measurements, the result is included in the database as RLO.

Automatic Polarity ReversalAfter the measuring sequence has been started, the instrument performs measurement with automatic polarity reversal, first with current flow in one direction, and then in the other. In the event of permanent measurements (press and hold the START key) polar-ity is reversed every other second.If the difference between RLO+ and RLO– is greater than 10% during automatic polarity reversal, the RLO+ and RLO– values are shown instead of RLO. The higher value for RLO+ and RLO–, respectively, is shown at the top and is included in the database as RLO value.

Evaluating Measurement ResultsDiffering results for measurements in both directions indicate voltage at the DUT (e.g. thermovoltages or unit voltages). Measurement results can be distorted by parallel connected impedances at load current circuits and by equalizing current, especially in systems which make use of “overcurrent protection devices” (previously neutralization) without an isolated protective conductor. Resistances which change during measurement (e.g. inductance), or a defective contact, can also cause distorted measurements (double display).In order to assure unambiguous measurement results, causes of error must be located and eliminated.In order to find the cause of the measuring error, measure resistance in both directions of current flow.

The instrument’s batteries are exposed to excessive stress during insulation resistance measurement. For measurement with current flow in one direction, only press and hold the START t key as long as necessary for the measurement.

NoteMeasuring Low-Value ResistanceMeasurement cable and 2-pole measuring adapter resistance is compensated for automatically thanks to the four conductor method and does not effect measurement results. However, if an extension cable is used its resistance must be measured and deducted from the measurement results.

Resistances which do not demonstrate a stable value until after a “settling-in period” should not be measured with automatic polarity reversal, but rather successively with positive and negative polarity. Examples of resistances whose values may change during measurement include:– Incandescent lamp resistance, whose values change

due to warming caused by test current – Resistances with a great conductive component – Contact resistance

Evaluation of Measurement ValuesSee Table 4 on page 64.

Calculation of Cable Lengths for Common Copper ConductorsIf the HELP key is activated after performance of resistance mea-surement, the cable lengths corresponding to common conduc-tor cross sections are displayed.

If results vary for the two different current flow directions, cable length is not displayed. In this case, capacitive or inductive com-ponents are apparently present which would distort the calcula-tion.This table only applies to cables made with commercially available copper conductors and cannot be used for other materials (e.g. aluminum)!

Polarity Selection Display Condition+ pole against PE RLO+ none

– Pole against PE RLO– none

pole against PERLO if RLO 10 %RLO+ RLO– if RLO > 10 %


13 Measurement with Accessory Sensors

13.1 Measuring Current with a Current Sensor ClampBiasing, leakage and circulating current up to 1 A, as well as leakage current up to 1000 A can be measured with the help of special current sensor clamps, which are connected to sockets (15) and (16).

Attention!!Danger: High-Voltage! Use only current sensor clamps which are specifically offered as accessories by GMC-I Messtechnik GmbH. Other current sensor clamps might not be terminated with an output load at the secondary side. Dangerously high voltage may endanger the user and the device in such cases.

Attention!!Maximum input voltage at the test instrument! Do not measure any currents which are greater than specified for the measuring range of the respective clamp. Input voltage for clamp connector sockets (15) and (16) at the test instrument may not exceed 1 V!

Attention!!Read and adhere strictly to the operating instructions for the current clamp sensors, as well as the safety precautions contained therein, in particular with reference to the approved measuring category.


Selecting a Measuring Range at the Current Sensor Clamp

Set ParametersThe transformation ratio parameter must be correspondingly set at the test instrument depending upon the respectively selected measuring range at the current sensor clamp.

Connection

Start Measurement

Tester Clamp TesterTransform.

Ratio Parameter

WZ12C Switch

Z3512A Switch

WZ12CMeasuring

Range

Z3512AMeasuring

Range

Measuring Range

1:11 V / A 1 mV / mA x 1000 [mV/

A] 1 mA... 15 A 0 ... 1 A 5 ... 999 mA

1:10100 mV / A — x 100 [mV/A] — 0 ... 10 A 0.05 ... 10 A

1:10010 mV / A — x 10 [mV/A] — 0 ... 100 A 0.5 ... 100 A

1:10001 mV / A 1 mV / A x 1 [mV/A] 1 A ... 150 A 0 ... 1000 A 5 ... 150 A/

999 A

Test Instru-ment

Clamp Sensor Test Instrument

Transformer Ratio

Parameter

SwitchMETRAFLEX P300

Measuring RangeMETRAFLEX P300

Measuring Range

1:11 V / A 3 A (1 V/A) 3 A 5 ... 999 mA

1:10100 mV / A 30 A (100 mV/A) 30 A 0.05 ... 10 A

1:10010 mV / A 300 A (10 mV/A) 300 A 0.5 ... 100 A

SENSOR

Clamp output range

„I“ with METRAFLEXP300


14 Special Functions – EXTRA Switch PositionSelect EXTRA Switch Position

Overview of Special Functions

Selecting Special FunctionsThe list of special functions is accessed by pressing the upper-most softkey. Select the desired function with the requested icon.

Softkey Meaning / Special Function MBASE MTECH Section / Page

Standing surface insulation impedance

ZST function

3 3

section 14.1 on page 41

Meter start-up test

kWh function3 3


Testing the operating states of an electric vehicle at charging stations in confor-mance with IEC 61851

— 3


EXTRA


14.1 Measuring the Impedance of Insulating Floors and Walls (standing surface insulation impedance ZST)

Measuring MethodThe instrument measures the impedance between a weighted metal plate and earth. Line voltage available at the measuring location is used as a source of alternating voltage. The equivalent circuit of ZST is regarded as a shunt connection.

Connection and Test Set-Up

Note: Use the measuring set-up described in section 11.2 (triangular probe) or the one outlined below:Ð Cover the floor or the wall at unfavorable locations, e.g. at

joints or abutments, with a damp cloth measuring approximately 270 x 270 mm.

Ð Place the 1081 Probe on top of the damp cloth and load the probe with a weight of 750 N (75 kg, i.e. one person) for floors, or 250 N (25 kg) for walls, e.g. press against the wall with a hand isolated by a glove).

Ð Establish a conductive connection to the 1081 Probe, and connect it to the probe connector socket at the instrument.

Ð Connect the instrument to a mains outlet with the test plug.

Attention!!Do not touch the metal plate or the damp cloth with bare hands. No more then 50% line voltage may be applied to these parts! Current with a value of up to 3.5 mA may flow!Apart from this, the measured value would be distorted.

Resistance values must be measured at several points in order to provide for adequate evaluation. Measured resistance may not be less than 50 k at any given point. If the measured value is greater than 30 M, ZST > 30.0 M always appears at the display panel.

Evaluation of Measured ValuesSee Table 5 on page 65.


14.2 Testing Meter Start-Up with Earthing Contact AdapterStart-up of energy consumption meters which are connected between L and N can be tested with this function.

Connection L – N

Earthing contact plug

Meters are tested with the help of an internal load resistor. After pressing the start key, the meter can be tested for proper start-up within a period of 5 seconds. The “RUN” pictograph is displayed. All 3 phases must be tested against N, one after the other.

Momentary test power is displayed during and after testing. The instrument is now ready for further testing (“READY” pictograph).

NoteIf a minimum power is not reached, the test will not be started or will be aborted.

Special CaseStart-up of energy consumption meters which are connected between L and L, or L and N, can be tested with this function.

Connection L – L 2-pole adapter

NoteIf an earthing contact outlet is not available, you can use the 2-pole adapter. N must be contacted with the PE test probe (L2), and then measurement must be started. If PE is contacted with the PE test probe (L2) during the meter start-up test, approximately 250 mA flow through the protective conductor and an upstream RCD, if avail-able, is tripped.

Meters are tested with the help of an internal load resistor. After pressing the start key, the meter can be tested for proper start-up within a period of 5 seconds. All 3 phases (phase conductor) must be tested against N, one after the other.In system types without N, all 3 phases must be tested against each other.

Momentary test power is displayed during and after testing. The instrument is now ready for further testing (“READY” pictograph).


14.3 New! Testing the Operating States of Electric Vehicles at Charging Stations per IEC 61851 (PROFITEST MTECH only)

A charging station is an equipment designed for the charging of elec-tric vehicles per IEC 61851which essentially consists of a plug con-nector, a cable protection, a residual current device (RCD), as well as a circuit breaker and a security communication system (PWM). Depending on the place of installation and application, further functional features such as mains connection and meter may be included.

Simulation of operating states per IEC 61851with the MENNEKES test box(Status A – E)The MENNEKES test box only serves the purpose of simulating diffe-rent operating states of an electric vehicle fictitiously connected with a charging station. The settings for the simulated operating states are indicated in the operating instructions for the test box.

The simulated operating states can be stored in the PROFITEST MTECH as visual inspection and documented in the ETC software.The operating state (status) to be tested is selected with the SECLECT STATUS key at the PROFITEST MTECH test instrument.

Status A – Charging conductor only connected with charging point• CP signal is switched on,• voltage between PE and CP is 12 V.

Status B – Charging conductor connected with charging point and vehicle• the charging conductor is locked at the charging point and in

the vehicle,• vehicle not yet ready for charging,• voltage between PE and CP is +9 V / –12 V.

Status C – Non-gassing vehicle identified• Readiness for charging on the vehicle/power side is activated,• Voltage between PE and CP is +6 V / –12 V.

Status D – Gassing vehicle identified• Readiness for charging on the vehicle/power side is activated,• Voltage between PE and CP is +3 V / –12 V.

Status E – Conductor is damaged• Short circuit between PE and CP,• Charging conductor is unlocked at the charging point,• Voltage between PE and CP is +0 V.

Semi-automatic changing between operating statesAs an alternative to the manual changing between operating states via the parameter menu of the SECLECT STATUS softkey at the test instrument, there is another fast and convenient way of changing between the operating states: select status parameter AUTO. Each time after replying to and storing a visual inspection, an automatic changeover to the next state takes place, with the keys shown on the display corres-ponding to 01/05 A/E (01 = A, 02 = B, 03 = C, 04 = D, 05 = E). It is possible to skip the status variants by pressing key IN at the test instrument or at the test socket.


15 New! Automatic Test Sequences – AUTO Function

If the same order of tests with subsequent report generation is to be performed repeatedly, as is, for example, specified by certain standards, we recommend using test sequences.In the PROFITEST MBASE test instrument a test sequence is hard-coded for this purpose: Measurements for type A RCDs. In the PROFITEST MTECH test instrument three test sequences are hardcoded: Measurements for type A and B RCDs as well as of loop resistan-ces by means of DC offset and positive half wave.

A test sequence is an automatic test procedure. It consists of several individual test steps which have to be processed one after the other. Basically, a distinction is made between three types of individual steps:• Note (INFO/REPORT): the test procedure is interrupted by a pop-

up note for the test engineer. It is not continued before the test engineer acknowledges the note or triggers the subsequent measurement with ON/START or IN. Example: Note prior to insulation resistance measurement: „Touch finger contact when starting the measurement!“

• Visual inspection, testing and report: the test procedure is inter-rupted by a pop-up window of a passed/failed evaluation, comments on and results of the evaluation are saved in the database.

• Measurement: Measurement like the individual measurements performed by the PROFITEST MBASE and PROFITEST MTECH test instruments with data storage and parameter configuration.

The test sequences are hardcoded and cannot be deleted acciden-tally or by resetting to default values.

NoteThe test sequences cannot be created at a PC by means of the ETC software and then transferred to the PROFITEST MBASE or PROFITEST MTECH test instruments, as is the case with PROFITEST MPRO or PROFITEST MXTRA.

Select Test Sequence Measuring Function– Selector Switch Position AUTO at the Test Instrument

In rotary switch position AUTO all test sequences available in the test instrument are displayed.

Select and Start Test SequenceFigure 15.1 Example PROFITEST MTECH – List of Test Sequences

Start Test Sequence

Select the desired test sequence (test procedure) via the „cursor up/down“ keys in the left column, see Figure 15.1. The associated test steps are displayed in

the right column. The selected test sequence (here: type A RCD) is started with the ON/START key.

Select and Start Test Step „Measurement“Apart from starting a complete test procedure, you can change to the list of test steps (right column) with the „cursor right“ key and select any desired test step as starting point with the „curser up/down“ keys, see Figure 15.2.If possible, select the info field before the actual measurement as a starting point to make sure that you don‘t miss the important note regarding the measurement.

Figure 15.2 Example PROFITEST MTECH – List of Test Steps

Test Step/Start Measurement

When performing a test step of the measurement type, the same display structure is shown as is known from the individual measu-rements. Instead of the memory and battery symbol, the current number of the test step is displayed in in the header (here: step 12 of 18), see Figure 15.3. The result can be stored as usual after the measurement has been completed. After storing, the next test step is automatically shown.

Figure 15.3 Measurement Menu

Change ParametersThe parameter configuration of the measurements in the test pro-cedure is performed automatically by accessing the electric circuit data stored in the database, see section 16.3.1. If no parameters are stored in the database, the default values of the test proce-dure are used.However, the parameters can be changed in the measurement menu during the test procedure before the respective measure-ment is started.After repeatedly starting the test procedure or individual test steps, the circuit data of the database or the default values are reloaded and not the parameters which may have been changed before.

AUTO


Change Limit ValuesDefault limit values are loaded for the test procedure. They can be changed, however, before starting the measurement. After repeatedly starting the test procedure or individual test steps, the default values are reloaded and not the parameters which may have been changed before.

Test Step „Visual Inspection“The visual inspection must be evaluated in the following case. A test which has been passed is acknowledged with the key, a test which has been failed with the key. In both cases, you are requested to save the results afterwards, as is the case with measurements.

Figure 15.4 Visual inspection

Navigate within the Test Procedure

Skip Test Steps: By pressing the „cursor right“ key you are guided to the next test step. In this manner, you can skip individual test steps.

Special cases: when a note fades in (REPORT, see Figure 15.5), which is displayed as INFO in the list of the test procedure, the fol-lowing operations are possible:

1) Quick Start: Starting the measu-rement directly by pressing ON/START or IN, depending on the request or type of measurement. The measuring menu is shown and measurement is started.

2) Start with Option to Change Parameters: Acknowledge the note (INFO/REPORT) by pressing . The measuring menu is shown. Parameters and limit values can be changed. The measurement must be started by pressing ON/START or IN, depending on the request or type of measurement.

3) Targeted Selection of Test Steps: If you wish to select any particular test steps within a test procedure, press the „cursor left“ key first. An overview of the individual test steps is shown. The current position within the test procedure is highlighted in inverse characters, see Figure 15.6. Select the desired test step via the „cursor up/down“ keys and launch it by pressing ON/START.

Example: You wish to test several socket outlets in succession: You start the test procedure at ZL-N and conduct the test up to IN. You interrupt the test and continue with ZL-N, etc.

Figure 15.5

Figure 15.6 Example PROFITEST MTECH – List of Test Steps

Interrupt the Test SequenceAn active sequence is interrupted by pressing ESC at any desired point in the test procedure and by subsequently acknowledging with the key. The start menu „List of Test Sequences/Test Steps“ is shown again, see Figure 15.7.

Figure 15.7

Finish Test SequenceWhen the last test step is completed, the message „Sequence finished“ is shown. By acknowledging this message with the key, the start menu „List of Test Sequences/Test Steps“ is shown again.

The test sequences are an integral part as from firmware version(SW1) 02.15.00.


16 Database

16.1 Creating Distributor Structures, GeneralA complete distributor structure with data for electrical circuits and RCDs can be created in the PROFITEST MASTER test instrument. This structure make it possible to assign measurements to the electrical circuits of various distributors, buildings and customers.

There are two possible procedures:• On location or at the

construction site: Create the distributor structure in the test instrument. A distributor structure with up to 50000 structural elements can be created in the test instrument, which is saved to the instrument’s flash memory.

or

• Create and save an image of an existing distributor structure at a PC with the help of ETC report generating software (Electric Testing Center) (see Help > Getting startet (F1)). The distributor structure is then transferred to the test instrument.

Note regarding ETC report generating softwareThe following steps must be completed before using the software:• Install USB device drivers:

(required for operation of PROFITEST MASTER with a PC) GMC-I Driver Control software can be downloaded from Gossen Metrawatt's website at:

http://www.gossenmetrawatt.com Products Software Software for Testers Utilities Driver Control

• Install ETC report generating software: You can download the current ETC version free of charge from our homepage under section mygmc after registration or login:

http://www.gossenmetrawatt.com Products Software Software for Testers Protocol Software without Database ETC myGMC zum Login

16.2 Transferring Distributor StructuresThe following data transfer operations are possible:• Transfer a distributor structure from the PC to the test

instrument.• Transfer a distributor structure including measured values from

the test instrument to the PC.

The test instrument and the PC must be connected with a USB cable in order to trans-fer distributor structures and data.

The following image appears at the display during transfer of structures and data.

16.3 Creating a Distributor Structure in the Test Instrument

Overview of the Meanings of Symbols used to Create StructuresSymbol MeaningMain Level

Sub-level

Save Menu, Page 1 of 3Cursor UP: scroll up

Cursor DOWN: scroll down

ENTER: acknowledge selection+ – Go to subordinate level

(open directory) or – + Go to superordinate level

(close directory) Display structure designation or ID number

Temporarily switching back and forth between structure designation and ID number.These keys do not interfere with the main configu-ration in the setup menu, see DB MODE on page 10. Hide structure designation or ID number

Change display to menu selection

Save Menu, Page 2 of 3Add a structural element

Meaning of symbols from top to bottom:Customer, building, distributor, RCD, electrical circuit, operating equipment (displayed symbol depends on which structural element has been selected).Selection: UP/DOWN scroll keys and In order to add a designation to the selected structural element, refer to the edit menu in the next column.

EDIT For additional symbols see edit menu belowDelete the selected structural element


Symbols of a Distributor Structure / Topology

16.3.1 Structure Creation (Example for Electrical Circuit)After selection with the MEM key, all setting options for the cre-ation of a topology are made available on three menu pages (1/3, 2/3 und 3/3). The topology consists of structural elements, referred to below as objects.

Select the position at which a new object will be added

Use the keys to select the requested structural elements.Switch to the sub-level with .Scroll to the next page with >>.

Create a new object.

Press key to create a new object.

Show measurement data, if a measurement has been performed for this structural element

Processing of selected structural element

Save Menu, Page 3 of 3Search for ID number> enter complete ID number

Search for text> enter complete test (complete word)

Search for ID number or text

Continue search

Edit MenuCursor LEFT: Select an alphanumeric character

Cursor RIGHT: Select an alphanumeric character

ENTER: accept an individual character

Acknowledge entry

Cursor LEFTCursor RIGHTDelete character

Switching amongst different types of alphanumeric characters:

A Upper case letters

a Lower case letters

0 Numbers

@ Special characters

Symbol Meaning

Distributor

A check mark measurement symbol next to a structural element means that all measurements within the respective hierarchy have been passed.Measurement symbol x: at least one measurement has not been passed.No measurement symbol: no measurement has been performed so far.

BuildingCustomer

RCDElectrical circuit

EquipmentEquipment

Same type of element as in Windows Explorer:+: Sub-objects available, display by pressing –: Sub-objects are displayed, hide by pressing

Scroll up

Scroll down

Acknowledge selection /

Display object

next page

change level

or ID number

Create object

Edit designation

VA: show measurement data

Delete object


Select a new object from a list.

Select an object from the list with the cursor keys and acknowledge with the Enter () key.Depending upon the profile selected in the test instrument’s SETUP menu (see section 4.6), the number of object types may be limited, and the hierarchy may be laid out differently.

Enter a designation.

Enter a designation and acknowledge by entering 3.

NoteAcknowledge the standard or adjusted parameters shown below, because the created designation will otherwise not be accepted and saved.

Setting Parameters for Electrical Circuit

Nominal current values, for example, must be entered here for the selected electrical circuit. Measuring parameters which have been accepted and saved in this way are subsequently accepted by the current measuring menu automatically when the display is switched from the structural view to measurement.

NoteElectrical circuit parameters changed during structure creation are also retained for individual measurements (measurement without saving data). If you change the electrical circuit parameters defined in the structure of the test instrument, a warning is issued upon saving, see error message on page 61.

16.3.2 Searching for Structural Elements

The search always starts with database, regardless of the currently marked object.

Jump to page 3/3 in the database menu

After activation of text search

and entry of the text you are looking for (only 100% match is found, no wild cards, case-sensitive)

the corresponding passage will be shown.Further passages are found by activating the icon at the right.

Scroll up

Scroll down

Acknowledge selection.

Select character

Select character

Accept character

Delete character

Character selection:

3 Save object designation

A, a, 0, @

Select parameter

List of parameter settings

Acknowledge parameter selection

Acknowledge parameter setting

and return to page 1/3

Select parameter setting

in the database menu

scroll up

scroll down

Acknowledge selection /

Display object number

next page

Change level

or ID number

Search for ID number

Search for text

Search for ID number or text

Select character

Select character

Accept character

Delete character

Character selection:

3 Save object designation

continue search


If no further entries are found, the above message appears.

16.4 Data Storage and Reporting

Preparing and Performing MeasurementsMeasurements can be performed and stored for each structural element. Please proceed as follows to this end:Ð Set the requested measurement at the rotary disc.Ð Start measurement with the ON/START key or with IN.Upon completion of measurement, the “ Floppy Disk” softkey is displayed. Ð Briefly press the “Save Value” key.

The display is switched to the save menu or the structural view.Ð Navigate to the desired memory location, i.e. to the desired

structural element / object to which the measurement data will be saved.

Ð If you want to enter a comment for the measurement, press the “MW TX” key and enter a designation via the “EDIT” menu as described in section 16.3.1.

Ð Complete data storage by pressing the “STORE” key.

Alternative Save ProcedureÐ If the “Save Value” key is pressed and held, the

measured value is saved to the last selected location in the structural diagram, without switching the display to the save menu.

NoteIf you change the parameters in the measuring view, the changes will not be accepted for the structural element. The measurement with the modified parameters can, however, be saved under the respective structural ele-ment while the modified parameters are documented for each measurement.

Retrieving Saved Measured ValuesÐ Switch to the distributor structure by pressing the MEM key

and to the requested electrical circuit via the cursor keys.Ð Switch to page 2 by pressing the key shown at the

right:

Ð Display the measurement data by pressing the key shown at the right:

One measurement is displayed at each LCD screen along with date and time, as well as any comment you might have entered. Example: RCD measurement

NoteA check mark in the headline means that this measure-ment has been passed. A cross means that it has failed.

Ð Scrolling amongst measurements is possible with the keys shown at the right.

Ð You can delete the measurement with the key shown at the right.

A window prompts you to acknowledge deletion once again.

With the key at the right(MV: measured value / PA: parameter) you can display the setting parameter for this measurement.

Ð Scrolling amongst parameters is possiblewith the keys shown at the right.

Complete search


Data Evaluation and Reporting with the ETC SoftwareAfter all measurements have been completed, the structure is transferred along with the pertinent data to ETC. Comments can then be added to the individual measurements. After pressing the appropriate key, a report including all measurements within the structure is generated, or the data are exported to an Excel spreadsheet.

NoteBy turning the function selector switch, the database is exited. The parameters previously set in the database are not accepted for measurement.

Data BackupWe advise you to regularly transfer stored data to a PC in order to prevent potential loss of data in the test instrument.We assume no responsibility for any data loss.For data processing and management we recommend the following PC programs:• ETC• E-Findings Manager (Austria)• Report Manager• PS3 (documentation, management, report generation and

monitoring of deadlines)• PC.doc-WORD/EXCEL (report and list generation)• PC.doc-ACCESS (test data management)

16.4.1 Using Barcode and RFID Readers

Searching for a Barcode which has Already been Read InThe procedure can be started from any selector switch setting and menu.Ð Scan the object’s barcode.The retrieved barcode is inverse displayed.Ð This value is accepted by pressing the ENTER key.

NoteAn already selected object cannot be found.

Continued Search, GeneralRegardless of whether or not an object has been found, searching can be continued with this key: –Object found: search below the previously selected object

– No additional object found: the entire database is searched at all levels

Reading in a Barcode for ProcessingIf the menu for alphanumeric entry is currently open, any value scanned by a barcode or RFID reader is directly accepted.

Using a Barcode Printer (accessory)The following applications are made possible with a barcode printer:• Print-out of ID numbers for objects encrypted as barcodes

(allows for quick and convenient identification for periodic testing)

• Print-out of repeatedly occurring designations, for example test object types encrypted as barcodes in a list, which can be read in for comments as required.


17 Operating and Display Elements

Test Instrument and Adapter

(1) Control Panel – Display PanelThe following are displayed at the LCD:• One or two measurement values as a three place numeric dis-

play with unit of measure and abbreviated measuring quantity• Nominal values for voltage and frequency• Circuit diagrams• On-line help• Messages and instructionsThe display/control panel can be swiveled forward and backward with the detented swivel hinge. The instrument can thus be set to the optimum reading angle.

(2) Eyelets for the Shoulder StrapThe included shoulder strap can be attached at the right and left hand sides of the instrument. You can hang the instrument from your shoulder and keep both hands free for measurement.

(3) Rotary Selector SwitchThe following basic functions can be selected with this rotary switch:SETUP / IN / IF / ZL-PE / ZL-N / RE / RLO / RISO / U / SENSOR / EXTRA / AUTOThe various basic functions are selected by turning the function selector switch while the instrument is switched on.

(4) Measuring Adapter

Attention!!The measuring adapter (2-pole) may only be used together with the test instrument’s test plug.Use for other purposes is prohibited!

The plug-on measuring adapter (2-pole) with the two test probes is used for measurements in systems without earthing contact outlets, e.g. at permanent installations, distribution cabinets and all three-phase outlets, as well as for insulation resistance and low-value resistance measurements.The 2-pole measuring adapter can be expanded to three poles for phase sequence testing with the included measurement cable (test probe).

(5) Plug Insert (country-specific)

Attention!!The plug insert may only be used together with the test instrument’s test plug. Use for other purposes is prohibited!

After the plug insert has been attached, the instrument can be directly connected to earthing contact outlets. You need not concern yourself with plug polarity. The instrument detects the positions of phase conductor L and neutral conductor N and automatically reverses polarity if necessary.The instrument automatically determines whether or not both protective contacts in the earthing contact outlet are connected to one another, as well as to the system protective conductor, for all types of protective conductor measurements when the plug insert is attached to the test plug.

(6) Test PlugThe various country specific plug inserts (e.g. protective contact plug insert for Germany or SEV plug insert for Switzerland) or the measuring adapter (2-pole) are attached to the test plug and secured with a threaded connector. The control elements at the test plug are subjected to interference suppression filtering. This may lead to a slightly delayed reaction compared to direct instrument control.

(7) Alligator Clip (plug-on)

(8) Test ProbesThe test probes comprise the second (permanently attached) and third (plug-on) poles of the measuring adapter. A coil cable connects them to the plug-on portion of the measuring adapter.

(9) ON/Start t Key The measuring sequence for the func-tion selected in the menu is started by pressing this key, either on the test plug or at the control panel. Exception: If the instrument is switched off, it can only be switched on by pressing the key at the control panel.This key has the same function as the t key on the test plug.

(10) IN Key / I (at the control panel) The following sequences are triggered by pressing this key, either on the test plug or at the control panel:• Starts the tripping test after measurement of contact voltage

for RCD testing (IN).• The ROFFSET measurement is started within the RLO / ZL-N func-

tion.• Semiautomatic polarity reversal (see section 5.8)

(11) Contact SurfacesThe contact surfaces are located at both sides of the test plug. When the contact plug is grasped in the hand, contact is automatically made with these surfaces. The contact surfaces are electrically isolated from the terminals and from the measuring circuit.The instrument can be used as a phase tester for protection class II devices! In the event a potential difference of greater than 25 V between protective conductor terminal PE and the contact surface, PE is displayed (compare section 18.1, “LED Indications, Mains Con-nections and Potential Differences”, beginning on page 57).

(12) Test Plug HolderThe test plug with attached plug insert can be reliably secured to the instrument with the rubberized holder.

(13) FusesThe two type M 3.15/500G fuses (safety fuse FF 3.15/500G) protect the instrument against overload. Phase conductor L and neutral conductor N are fused individually. If a fuse is defective, and if an attempt is made to perform a measurement which uses the circuit protected by this fuse, a corresponding message appears at the display panel.

Attention!!Severe damage to the instrument may occur if incorrect fuses are used. Only original fuses from GMC-I Messtechnik GmbH assure required protection by means of suitable blowing characteristics (order no. 3-578-189-01).

NoteThe voltage ranges remain functional even if fuses have blown.

(14) Holders for Test Probes (8)

(15/16) Current Clamp Connector SocketsOnly current transformer clamps offered as accessories may be connected to these sockets.

(17) Probe Connector SocketThe probe connector socket is required for the measurement of probe voltage US-PE, earth electrode voltage UE, earthing resistance RE and standing surface insulation resistance.


It can be used for the measurement of contact voltage during RCD testing. The probe is connected with a 4 mm contact protected plug.The instrument determines whether or not the probe has been properly set and displays results at the display panel.

(18) USB PortThe USB port allows for the exchange of data between the test instrument and a PC.

(19) RS 232 PortThis connection allows for data entry by means of a barcode scanner or an RFID reader.

(20) Charging SocketOnly the Z502P charger for charging batteries inside the test instrument may be connected to this socket.

(21) Battery Compartment Lid – Replacement Fuses

Attention!!When the lid is removed, the instrument must be disconnected from the measuring circuit at all poles!

The battery compartment lid covers the battery holder with the rechargeable batteries and the replacement fuses.The battery holder is designed for use with eight 1.5 V AA batteries in accordance with IEC LR 6 for supplying power to the instrument. Make certain that battery polarity corresponds the symbols when inserting the rechargeable batteries.

Attention!!Make sure that all of the rechargeble batteries are inserted with correct polarity. If just one battery is inserted with reversed polarity, it will not be recognized by the instrument and may result in battery leakage.

Two replacement fuses are located beneath the battery compartment lid.

Control Panel – LEDs

MAINS/NETZ LEDThis LED is only functional when the instrument is switched on. It has no function in voltage ranges UL-N and UL-PE. It lights up green, red or orange, or blinks green or red, depending upon how the instrument has been connected and the selected function (compare section 18.1, “LED Indications, Mains Connec-tions and Potential Differences”, beginning on page 57).This LED also lights up if line voltage is present during measurement of RINS and RLO.

UL/RL LEDThis LED lights up red if contact voltage is greater than 25 V or 50 V during RCD testing, as well as after safety shut-down occurs. It also lights up if RINS or RLO limit values have been exceeded or fallen short of.

RCD LED • FIThis LED lights up red if the RCCB is not tripped within 400 ms (1000 ms for selective RCCBs of the RCD S type) during the trip-ping test with nominal residual current.It also lights up if the RCCB is not tripped before nominal residual current has been reached during measurement with rising residual current.


18 Characteristic Values

Func-tion

Measured Quantity Display Range Reso-

lution

Input Impedance/Test Current

Measuring Range Nominal Values Measuring Uncertainty

Intrinsic Uncertainty

ConnectionsPlug Insert

1)2-PoleAdapter

3-Pole Adapter Probe

Clamps

WZ12C Z3512A MFLEXP300

U

UL-PEUN-PE

0 ... 99.9 V 0.1 V

5 M

90 ... 600 V 1)

UN = 120/230/400/500 V

fN = 162/3/50/60/200/400 Hz

(2% rdg.+5d) (1% rdg.+5d)

l l l100 ... 600 V 1 V (2% rdg.+1d) (1% rdg.+1d)

f 15.0 ... 99.9 Hz100 ... 999 Hz

0.1 Hz1 Hz 15.4 ... 420 Hz (0.2% rdg.+1d) (0.1% rdg.+1d)

U3~0 ... 99.9 V

100 ... 600 V0.1 V1 V 90 ... 600 V (3% rdg.+5d)

(3% rdg.+1d)(2% rdg.+5d)(2% rdg.+1d) l

UPROBE0 ... 99.9 V

100 ... 600 V0.1 V1 V 0 ... 600 V (2% rdg.+5d)

(2% rdg.+1d)(1% rdg.+5d)(1% rdg.+1d) l

UL-N0 ... 99.9 V

100 ... 600 V0.1 V1 V 90 ... 600 V 1) (3% rdg.+5d)

(3% rdg.+1d)(2% rdg.+5d)(2% rdg.+1d) l l

IN

IF

UIN 0 ... 70.0 V 0.1 V 0.3 · IN 5 ... 70 V

UN = 120/230 V

fN = 50/60 Hz

UL = 25/50 V

IN = 10/30/100/300/500

mA

UN1) 2)

= 400 V

+10% rdg.+1d +1% rdg.–1d ... +9% rdg.+1d

l ll

optional

RE / IN = 10 mA 10 ... 6.51 k 10

calculated value from

UIN / IN

RE / IN = 30 mA 3 ... 999 1 k ... 2.17 k

3 10

RE / IN = 100 mA 1 ... 651 1

RE / IN = 300 mA 0.3 ... 99.9 100 ... 217

0.3 1

RE / IN = 500 mA 0.2 ... 9.99 100 ... 130

0.2 1

I / IN = 10 mA 3.0 ... 13.0 mA0.1 mA

3.0 ... 13.0 mA 3.0 ... 13.0 mA

(5% rdg.+1d) (3.5% rdg.+2d)I / IN = 30 mA 9.0 ... 39.0 mA 9.0 ... 39.0 mA 9.0 ... 39.0 mA

I / IN = 100 mA 30 ... 130 mA 1 mA 30 ... 130 mA 30 ... 130 mAI / IN = 300 mA 90 ... 390 mA 1 mA 90 ... 390 mA 90 ... 390 mAI / IN = 500 mA 150 ... 650 mA 1 mA 150 ... 650 mA 150 ... 650 mA

UI / UL = 25 V 0 ... 25.0 V0.1 V wie I

0 ... 25.0 V+10% rdg.+1d +1% rdg.–1d ...

+9% rdg.+1 dUI / UL = 50 V 0 ... 50.0 V 0 ... 50.0 VtA / IN 0 ... 1000 ms 1 ms 1.05 · IN 0 ... 1000 ms 4 ms 3 ms

tA / 5 · IN 0 ... 40 ms 1 ms 5 · IN 0 ... 40 ms IN = 10/30 mA

ZL-PE

ZL-N

ZL-PE (full waves)ZL-N

0 ... 999 m1.00 ... 9.99 1 m

0.01 0.1 0.65...3.4 A AC

0.5/1.25 A DC

0.15 ... 0.49 0.50 ... 0.99 1.00 ... 9.99

UN = 120/230 V

UN = 400 V 1)/500 V at ZL-PE

fN = 162/3/50/60 Hz

(10% rdg.+ 30d)(10% rdg.+ 30d)(5% rdg.+ 3d)

(5% rdg.+30d)(4% rdg.+30d)(3% rdg.+3d)

ll

ZL-PE

ZL-PEDC+

0 ... 999 m1.00 ... 9.99 10.0 ... 29.9

0.25 ... 0.99 1.00 ... 9.99

(18% rdg.+30d)(10% rdg.+3d)

(6% rdg.+50d)(4% rdg.+3d)

IK0 A ... 999 A

1.00 kA ... 9.99 kA10.0 kA ... 50.0 kA

1 A10 A

100 A

120 (108 ... 132) V230 (196 ... 253) V400 (340 ... 440) V

calculated value from ZL-PE

ZL-PE (15 mA)0.5 ... 9.99 0.01 only display range

10.0 ... 99.9 100 ... 999

0.1 1

15 mA

10 ... 100 100 ... 1000 UN = 120/230 V

fN = 162/3/50/60 Hz

(10% v.M.+10D)(8% v.M.+2D)

(2% v.M.+2D)(1% v.M.+1D)

IK (15 mA)100 ... 999 mA0.00 ... 9.99 A10.0 ... 99.9 A

1 mA0.01 A0.1 A

calcul. value depends on UN and ZL-PE:

IK=UN/10...1000

calculated value from ZL-PE (15 mA):IK = UN/ZL-PE (15 mA)

RE

RE (with probe)

[RE (without probe) values as ZL-PE]

0 ... 999 m1.00 ... 9.99 10.0 ... 99.9 100 ... 999

1 k ...9.99 k

1 m0,01 0,1 1

0.01 k

0.65 ... 3.4 A0.65 ... 3.4 A0.65 ... 3.4 A

400 mA40 mA4 mA

0.15 ... 0.49 0.50 ... 0.99 1.0 ...9.99 10 ...99.9 100 ...999 1 k ...9.99 k

UN = 120/230 VUN = 400 V 1)

fN = 50/60 Hz

(10% rdg.+30d)(10% rdg.+30d)(5% rdg.+3d)(10% rdg.+3d)(10% rdg.+3d)(10% rdg.+3d)

(5% rdg.+30d)(4% rdg.+30d)(3% rdg.+3d)(3% rdg.+3d)(3% rdg.+3d)(3% rdg.+3d) l l l

RE DC+0 ... 999 m

1.00 ... 9.99 10.0 ... 29.9

1 m0.01 0.1

0.65...3.4 A AC0.5/1.25 A DC

0.25 ... 0.99 1.00 ... 9.99

UN = 120/230 VfN = 50/60 Hz

(18% rdg.+ 30d)(10% rdg. + 3d)

(6% rdg.+50D)(4% v.M.+3D)

UE 0 ... 253 V 1 V — calculated value

RE Selclip

RE 0 ... 999 1 m... 1 0.65...3.4 A AC

0.5/1.25 A DC 0.25 ... 300 5)see RE (20% rdg.+ 20 D) (15% rgd.+ 20 d) l

lRE DC+ 0 ... 999 1 m...

1 UN = 120/230 VfN = 50/60 Hz (22% v.M.+20 D) (15% rdg.+ 20 d)

EX-TRA ZST 0 ... 30 M 1 k 2.3 mA at 230

V10 k ... 199 k200 k ... 30 M U0 = UL-N

(20% rdg.+2d)(10% rdg.+2d)

(10% rdg.+3d)(5% rdg.+3d)

RINSRINS. RE INS

1 ... 999 k1.00 ... 9.99 M10.0 ... 49.9 M

1 k10 k

100 k

IK = 1.5 mA 50 k... 500 M

UN = 50 VIN = 1 mA

krange(5% rdg.+10d)

Mrange(5% rdg.+1d)

krange(3% rdg.+10d)

Mrange(3% rdg.+1d)

l l

1 ... 999 k1.00 ... 9.99 M10.0 ... 99.9 M

1 k10 k

100 k

UN = 100 VIN = 1 mA

1 ... 999 k1.00 ... 9.99 M10.0 ... 99.9 M100 ... 200 M

1 k10 k

100 k1 M

UN = 250 VIN = 1 mA

1 ... 999 k1.00 ... 9.99 M10.0 ... 99.9 M100 ... 500 M

1 k10 k

100 k1 M

UN = 500 V/1000 V

IN = 1 mA

U 25 ... 1200 V– 1 V 25 ... 1200 V (3% rdg.+1d) (1.5% rdg.+1d)

RLO RLO0.01 ... 9.99 10.0 ... 99.9

10 m100 m

Im 200 mAIm < 200 mA

0.1 ... 5.99 6.0 ... 100 U0 = 4.5 V (4% rdg.+2d) (2% rdg.+2d) l


1) U > 253 V, with 2 or 3-pole adapter only2) IN = 500 mA, max. UN = 250 V3) The measuring range respectively the transformation factor selected at the clamp

(IL=In: 1 mA...15 A/Out:1 mV/mA or Iamp = 1...150 A/1 mV/A) must be set in the “TYPE” menu with the selector switch in the SENSOR position.

4) The measuring range respectively the transformation factor selected at the clamp (x 1, x 10, x 100, x 1000 mV/A) must be set in the “TYPE” menu with the selector switch in the SENSOR position.

5) at REselektiv/REgesamt < 100

Reference ConditionsLine voltage 230 V 0.1%Line frequency 50 Hz 0.1%Meas. quantity frequency 45 Hz ... 65 HzMeas. quantity waveform Sine (deviation between RMS and

rectified value 0.1%)Line impedance angle cos = 1Probe resistance 10 Supply voltage 12 V 0.5 VAmbient temperature +23 C 2 KRelative humidity 40% ... 60%Finger contact For testing potential diff. at earthStanding surface insulation Resistive only

Nominal Ranges of UseVoltage UN 120 V (108 ... 132 V)

230 V (196 ... 253 V)400 V (340 ... 440 V)

Frequency fN 16 2/3 Hz (15.4 ... 18 Hz)50 Hz (49.5 ... 50.5 Hz)60 Hz (59.4 ... 60.6 Hz)200 Hz (190 ... 210 Hz)400 Hz (380 ... 420 Hz)

Overall voltage range UY 65 ... 550 VOverall frequency range 15.4 ... 420 HzWaveform SineTemperature range 0 C... +40 CSupply voltage 8 ... 12 VLine impedance angle Corresponds to cos = 1 ... 0.95Probe resistance < 50 k

Power SupplyRechargeable batteries 8 x AA 1,5 V, we recommend to use

only the supplied MASTER Battery set (Set of rechargeable batteries, article no. Z502H)

Charger (Z502P) for 4 ... 10 cell battery packs Input: 100 ... 240 V AC Output: 16.5 V DC 3.5 mm diameter jack plug(only suited for mains operation)

Charging time Approx. 4 hours

Number of Measurements with PROFITEST MTECH(standard setup with illumination)– for RINS 1 measurement – 25 s pause:

approx. 1100 measurements– for RLO Automatic polarity reversal/1

(1 measuring cycle) – 25 s pause: approx. 1000 measurements

Overload CapacityRINS 1200 V continuousUL-PE, UL-N 600 V continuousRCD, RE, RF 440 V continuousZL-PE, ZL-N 550 V (limits the number of

measurements and pause duration. If overload occurs, the instrument is switched off by means of a thermostatic switch)

RLO Electronic protection prevents switching on if interference voltage is present

Protection with fine-wire fuses FF 3.15 A 10 s,

fuses blow at > 5 A

Electrical SafetyProtection class II per IEC 61010-1/EN 61010-1/

VDE 0411-1Nominal voltage 230/400 V (300/500 V)Test voltage 3.7 kV 50 HzMeasuring category CAT I I I 600 V or CAT IV 300 VPollution degree 2Fusing, Terminals L and N 1 cartridge fuse-link ea.

FF 3.15/500G 6.3 mm x 32 mm

Electromagnetic Compatibility (EMC)Product standard EN 61326-1:2006

SEN-SOR IL/Amp

0 ... 99.9 mA 0.1 mA5 ... 1000 mA 3) (10% rdg.+8d) (4% rdg.+7d)

l100 ... 999 mA 1 mA (10% rdg.+3d) (4% rdg.+2d)

0 ... 99.9 A 0.1 A5 ... 150 A 3) (8% rdg.+2d) (3% rdg.+2d)

100 ... 150 A 1 A (8% rdg.+1d) (3% rdg.+1d)0 ... 99.9 mA 0.1 mA

5 ... 1000 mA 4)

0.05 ... 10 A 4)

0.5 ... 100 A 4)

5 ... 1000 A 4)

(7% rdg.+8d) (4% rdg.+7d)

l

100 ... 999 mA 1 mA (5% rdg.+3d) (2% rdg.+2d)1.0 ... 9.99 A 0.01 A (4% rdg.+2d) (2% rdg.+2d)

10.0 ... 99.9 A 0.1 A (4% rdg.+2d) (2% rdg.+2d)100 ... 999 A 1 A (4% rdg.+1d) (2% rdg.+1d)

1.00 ... 1.02 kA 0.01 kA (4% rdg.+1d) (2% rdg.+1d)0 ... 99.9 mA 0.1 mA

1 V/A 30 ... 1000 mA 4) UN = 120/230/400 V

fN = 50/60 Hz

(7% rdg.+100d) (4% rdg.+100d)

l100 ... 999 mA 1 mA (6% rdg.+12d) (3% rdg.+12d)1.0 ... 9.99 A 0.01 A 100 mV/A 0,3 ... 10 A 4) (6% rdg.+12d) (3% rdg.+12d)

10.0 ... 99.9 A 0.1 A 10 mV/A 3 ... 100 A 4) (5% rdg.+11d) (2% rdg.+11d)

Func-tion

Measured Quantity Display Range Reso-

lution

Input Impedance/Test Current

Measuring Range Nominal Values Measuring Uncertainty

Intrinsic Uncertainty

ConnectionsPlug Insert

1)2-PoleAdapter

3-Pole Adapter Probe

Clamps

WZ12C Z3512A MFLEXP300

Interference Emission Class

EN 55022 A

Interference Immunity Test value Features

EN 61000-4-2 Contact / atmos. – 4 kV / 8 kV

EN 61000-4-3 10 V/m

EN 61000-4-4 Mains connection – 2 kV

EN 61000-4-5 Mains connection – 1 kV

EN 61000-4-6 Mains connection – 3 V

EN 61000-4-11 0.5 period / 100%


Ambient ConditionsAccuracy 0 ... + 40COperation –10C ... +50CStorage –20 C ... +60 C

(without rechargeable batteries)Relative Humidity Max. 75%, no condensation allowedElevation Max. 2000 m

Mechanical DesignDisplay Multiple display with dot matrix,

128 x 128 pixelsDimensions W x L x D = 260 x 330 x 90 mm

(without measurement cables)Weight Approx. 2.3 kg with rechargeable

batteriesProtection Housing: IP 40, test probe: IP 40

per DIN VDE 0470, part 1 / EN 60529

Extract from table on the meaning of IP codes

Data InterfaceType USB slave for PC connectionType RS 232 for barcode and RFID readers

IP XY (1st char. X)

Protection against foreign object entry

IP XY (2nd char. Y)

Protection against the penetration of water

0 not protected 0 not protected1 50.0 mm 1 vertically falling drops2 12.5 mm 2 dripping at angle of 153 2.5 mm 3 spraying water4 1.0 mm 4 splashing water


18.1 LED Indications, Mains Connections and Potential Differences

Status Test Plug

Meas. Adapter

Selector Switch Position

Function / Meaning

LED IndicationsNETZ/MAINS

lights up green X

IN / IF ZL-N / ZL-PE / RE

Correct connection, measurement enabled

NETZ/MAINS

blinks green X


N conductor not connected, measurement enabled

NETZ/MAINS blinks red X X


1) no line voltage or2) PE interrupted

NETZ/ MAINS

lights up red X RISO / RLO

Interference voltage detected, measurement disabled

NETZ/ MAINS

lights up yellow X


L and N are connected with the phase conductors.

UL/RLlights up

red X XIN

RISO / RLO

– Contact voltage UIN or UI > 25 V or > 50 V– Safety shut-down has occurred– Limit value exceeded or fallen short of for RINS / RLO function

FI/RCD lights up red X X IN / IF The RCCB was not tripped, or was tripped too late during the

tripping test.

Mains Connection Test — Single-Phase SystemLCD Connection Pictograph

is displayed All except for U No connection detection

is displayed All except for U Connection OK

is displayed All except for U L and N reversed, neutral conductor charged with phase voltage

is displayed All except for U No mains connection

is displayed All except for U Neutral conductor interrupted

is displayed All except for U Protective conductor PE interrupted, neutral conductor N and/or phase

conductor L charged with phase voltage

is displayed All except for U Phase conductor L interrupted, neutral conductor N charged with phase

voltage

is displayed All except for U Phase conductor L and protective conductor PE reversed

is displayed All except for U

Phase conductor L and protective conductor PE reversedNeutral conductor interrupted (only with probe)

is displayed All except for U L and N are connected with the phase conductors.

Mains Connection Test — 3-Phase SystemLCD Connection Pictograph

is displayed

U(3-phase measurement)

Clockwise rotation

is displayed


Counter-clockwise rotation

is displayed


Short between L1 and L2

?

?

?

N

PE

L

N

PE

L

N

PE

L

N

PE

Lx

N

PE

L

x

N

PE

Lx

N

PE

L

N

PE

Lx

N

PE

L


is displayed



is displayed



is dis-played


Phase conductor L1 missing

is dis-played



is dis-played



is dis-played


Phase conductor L1 to N

is dis-played



is dis-played



Battery Test

is displayed All Rechargeable batteries must be charged or replaced towards the end of

their useful life (U < 8 V).

PE test by means of finger contact at the contact surfaces on the test plugLCD LEDs

is displayed

UL/RL

FI/RCD

light up red

X XU

(single-phase measurement)

Potential difference 50 V between finger contact and PE (earth contact)Frequency f 50 Hz

is displayed

UL/RL

FI/RCD

light up red

X XU

(single-phase measurement)

If L is correctly contacted and PE is interrupted (Frequency f 50 Hz)

Error MessagesLCD

X XAll measurements

with protective con-ductor

Potential difference 50 V between finger contact and PE (earth contact)Remedy: inspect PE connection

Note: Measurement can be launched nevertheless by pressing the start key once more.

X XIN / IF

ZL-N / ZL-PE / RE

1) Voltage for RCD test with DC current too high (U > 253 V)2) U generally U > 440 V with 500 mA3) U > 440 V for IN / IF 4) U > 253 V for IN / IF with 500 mA5) U < 253 V for measurements with probe

X X INRCD is tripped too early, or is defective.Remedy: test circuit for biasing current.

Status Test Plug

Meas. Adapter


Function / Meaning

PE

PE


X X ZL-PERCD is tripped too early, or is defective.Remedy: Test with positive or negative half-wave.

X X IN / IFRCD tripped during contact voltage measurement.Remedy: Check selected nominal test current.

EXTRA PRCDPRCD has tripped.Cause: poor contact or defective PRCD

X X All except for U

Externally accessible fuse is defective.The voltage ranges remain functional even if fuses have blown.Special case, RLO: Interference voltage during measurement may result in destruction of the fuse.Remedy: Replace fuse (replacement fuse in battery compartment).Observe instructions for fuse replacement in section 19.3!

X XIN / IF

ZL-N / ZL-PE / RE

Frequency out of permissible range.Remedy: inspect mains connection.

allExcessive temperature inside the test instrument.Remedy: wait for test instrument to cool down.

X X RISO / RLO

Interference voltage.Remedy: device under test must be disconnected from all sources of volt-age.

X X All measurements with probe Interference voltage at the probe

X X RISO / RLOOvervoltage, or overloading of the measurement voltage generator during measurement of RISO or RLO

X X

IN / IF ZL-N / ZL-PEZST, RST, RE

Meter start-up

No mains connection.Remedy: inspect mains connection.

X X all

Hardware defectRemedy: 1) Switch on/offor 2) Briefly take out the batteries/rechargeable batteriesIf error message remains, send test instrument to GMC-I Service GmbH for repair.

X X RLO

OFFSET measurement not advisableRemedy: check systemOFFSET measurement of RLO+ and RLO– remains possible

X RLO

ROFFSET > 10 : OFFSET measurement not advisableRemedy: check system

Status Test Plug

Meas. Adapter


Function / Meaning


X ZL-N

ZOFFSET > 10 : OFFSET measurement not advisableRemedy: check system

X ZL-N

ZOFFSET > ZX: Offset value greater than the measured value at the power consuming systemOFFSET measurement not advisableRemedy: check system

X X RISO / RLO

Contact problem or fuse is defectiveRemedy: check test plug or measuring adapter for correct seating in the test plug or replace fuse.

X RE Polarity at 2-pole adapter must be reversed.

X IN / IF N and PE are reversed.

XIN / IF

ZL-N / ZL-PE / RE

1) Mains connection error. Remedy: inspect mains connection.

or2) Display in the connection pictograph: PE interrupted (x) or lower

protective conductor jumper interrupted with reference to the keys on the test plug.Cause: voltage measuring path interruptedResult: measurement is disabled

Note: only when appears: Measurement can be launched neverthe-less by pressing the start key once more.

X IN / IF

Display in the connection pictograph: Upper protective conductor jumper interrupted with reference to the keys on the test plug.Cause: current measuring path interruptedResult: no measured value display

RE IN / IF

Probe is not detected, probe not connected.Remedy: inspect probe connection.

RE

Clamp is not detected: – Clamp not detected or – Current through clamp too small (earth resistance too high) or – Transformer ratio set incorrectlyRemedy: inspect clamp connection, check transformer ratio,

check/replace the batteries in the METRAFLEX P300

RE If you have changed the transformer ratio at the test instrument, a prompt appears indicating it should be adjusted at the current clamp sensor too.

RE

Voltage too high at clamp input or signal interferenceThe transformer ratio parameter selected at the test instrument may not match the current clamp sensor’s transformer ratio. Remedy: check transformer ratio or setup

All

Battery voltage falls short of or equals 8 V.No reliable measurements can be performed any longer.Storing of measured values is inhibited.Remedy: Rechargeable batteries must be charged or replaced towards the end of their useful life.

Status Test Plug

Meas. Adapter


Function / Meaning


IN / IF Resistance in N-PE path is too high.Result: The required test current cannot be generated and measurement is aborted.

Test sequences — Messages — LCD Pictographs

AUTO

The test sequence includes a measurement which cannot be processed by the connected test instrument. The respective test step must be skipped. Example: The test sequence includes a RCM measurement which has been transferred to PROFITEST MTECH.

AUTO The test sequence has been successfully completed.

Database and Entry Operations — LCD Pictographs

AllThe selected parameters do not make sense in combination with other, previously set parameters. The selected parameters will not be accepted.Remedy: enter other parameters

IN / IF ZL-N / ZL-PE

Saving a measured value with differing electrical circuit parameterThe electrical circuit parameter you have set at the test instrument does not correspond to the parameter saved in the structure under object data. Example: The residual operating current defined in the database is 10 mA, whereas you have performed measurements with 100 mA. If you wish to perform all future measurements with 100 mA, the value must be modified in the database by acknowledging it with . The measured value will be documented and the new parameter will be accepted.If you wish to leave the parameter in the database unchanged, press key

. Measured value and modified parameter will only be documented.

All Please enter a designation (alphanumeric).

All

Operation with a Barcode ScannerError message appears when the “EDIT” entry field is opened and battery voltage is less than 8 V. Output voltage is generally switched off during barcode scanner operation if U is less than 8 V in order to assure that remaining battery capacity is adequate for entering designations for devices under test and saving the measurement.Remedy: Batteries must be replaced or recharged.

AllBarcode scanner operationCurrent flowing via RS232 interface is too high.Remedy: The connected instrument is not suited for this interface.

AllOperation with a barcode scannerBarcode not recognized, incorrect syntax

All

Operation with a barcode scannerData cannot be entered at this point within the structure.Remedy: Observe profile for preselected PC software (see SETUP menu).

AllStorage of measured values is not possible at this point in the structure.Remedy: Check whether you have set the appropriate profile for your PC evaluation program in the SETUP, see section 4.6.

All

Data memory is full.Remedy: Back up your measurement data to a PC and then clear test instrument memory by deleting the database or importing an empty database.

Status Test Plug

Meas. Adapter


Function / Meaning


AllDeletion of measurement or database.

A window prompts you to acknowledge deletion once again.

SETUP

Data Loss when changing language, profiles or reset to default settings!

Save your measurement data to a PC before pressing the corresponding key.A window prompts you to acknowledge deletion once again.

All

This error message appears when the database, i. e. the structure cre-ated in the ETC software, is too large for the device memory.The database in the device memory is empty after database transfer has been interrupted.Remedy: Reduce the database in ETC or send the database without measured vales (key Send structure) if measured values should already be available.

Status Test Plug

Meas. Adapter


Function / Meaning


19 Maintenance

19.1 Firmware Revision and Calibration InformationSee section 4.6

19.2 Rechargeable Battery Operation and ChargingCheck to make sure that no leakage has occurred at recharge-able batteries at short, regular intervals, or after the instrument has been in storage for a lengthy period of time.

NotePrior to lengthy periods of rest (e. g. holiday), we recom-mend removing the (rechargeable) batteries. This helps to prevent excessive depletion or leakage of batteries, which, under unfavourable circumstances, may cause damage to the instrument.

If battery voltage has fallen below the allowable lower limit, the pictograph shown at the right appears. “Low Batt!!!” is also displayed along with a battery symbol. The instrument does not function if the rechargeable batteries have been depleted excessively, and no display appears.

Attention!!Use the Z502P charger only in order to charge batteries which have already been inserted into the tester.Make sure that the following conditions have been fulfilled before connecting the charger to the charging socket: – Rechargeable batteries have been installed with

correct polarity (not standard batteries) – the plug of the charger has been connected with

correct polarity, see also section 19.2.1 – The instrument has been disconnected from the

measuring circuit at all poles – The instrument must remain off during charging.

If the rechargeable batteries or the battery pack have not been used or charged for an extended period of time (up to a state of excessive depletion):Observe the charging process (which is indicated by LEDs at the battery charger) and start another charging process if necessary (disconnect the battery charger from the mains and from the test instrument for this purpose. Reconnect it afterwards).

19.2.1 Charging Procedure with the Z502P ChargerÐ Insert the correct mains plug for your country into the charger.

Attention!!Make sure that rechargeable batteries have been inserted (not standard batteries). We recommend the use of rechargeable NiMH batteries (type: eneloop).

Attention!!Make sure that all of the rechargeable batteries are inserted with correct polarity. If just one battery is inserted with reversed polarity, it will not be recognized by the instrument and may result in battery leakage.

Ð Connect the charger to the test instrument with the jack plug, and then to the 230 V mains with the interchangeable plug. (The battery charger is only suited for mains operation!)

Attention!!Do not switch the test instrument on during charging. Monitoring of the charging process by the microproces-sor might otherwise be disturbed, in which case the charging times specified in the technical data can no lon-ger be assured.

Ð Please refer to the operating instructions included with the charger regarding the meanings of LED displays during the charging process.

Ð Do not disconnect the charger from the test instrument until the green LED (charged/ready) lights up.

19.3 FusesIf a fuse has blown due to overload, a corresponding error message appears at the display panel. The instrument’s voltage measuring ranges are nevertheless still functional.

Replacing Fuses

Attention!!Disconnect the device from the measuring circuit at all poles before opening the fuse compartment lid!

Ð Loosen the slotted screws at the fuse compartment lid next to the mains power cable with a screwdriver. The fuses are now accessible.

Ð Replacement fuses can be accessed after opening the battery compartment lid.

Attention!!Severe damage to the instrument may occur if incorrect fuses are used. Only original fuses from GMC-I Messtechnik GmbH assure required protection by means of suitable blowing characteristics (order no. 3-578-189-01). Short-circuiting of fuse terminals or the repair of fuses is prohibited, and is life endangering! The instrument may be damaged if fuses with incorrect ampere ratings, breaking capacities or blowing characteristics are used!

Ð Remove the defective fuse and insert a new one.Ð Insert the fuse compartment lid after the fuse has been re-

placed and secure it by turning clockwise.

19.4 HousingNo special maintenance is required for the housing. Keep outside surfaces clean. Use a slightly dampened cloth for cleaning. In particular for the protective rubber surfaces, we recommend a moist, lint-free microfiber cloth. Avoid the use of cleansers, abrasives or solvents.

Return and Environmentally Sound DisposalThe instrument is a category 9 product (monitoring and control instrument) in accordance with ElektroG (German electrical and electronic device law). This device is subject to the RoHS direc-tive. Furthermore, we make reference to the fact that the current status in this regard can be accessed on the Internet at www.gossenmetrawatt.com by entering the search term WEEE.In accordance with WEEE 2012/19EU and ElektroG, we identify our electrical and electronic devices with the symbol in accordance with DIN EN 50419 which is shown at the right. Devices identified with this symbol may not be disposed of with the trash. Please contact our service department regarding the return of old devices (see section 21).

If you use batteries or rechargeable batteries in your instrument or accessories which no longer function properly, they must be duly disposed of in compliance with the applicable national regula-tions.Batteries or rechargeable batteries may contain harmful sub-stances or heavy metal such as lead (PB), cadmium (CD) or mer-cury (Hg).They symbol shown to the right indicates that batteries or rechargeable batteries may not be disposed of with the trash, but must be delivered to collection points specially provided for this purpose.

BAT

Pb Cd Hg


20 Appendix

20.1 Tables for the determination of maximum or minimum display values under consideration of maximum instrument operating uncertainty

Table 1

Table 2

Table 3

Table 4

ZL-PE. (full-wave) / ZL-N ()

ZL-PE. (+/- half-wave) ()

Limit Value

Max.Display Value

Limit Value

Max.Display Value

0.10 0.07 0.10 0.050.15 0.11 0.15 0.100.20 0.16 0.20 0.140.25 0.20 0.25 0.180.30 0.25 0.30 0.220.35 0.30 0.35 0.270.40 0.34 0.40 0.310.45 0.39 0.45 0.350.50 0.43 0.50 0.390.60 0.51 0.60 0.480.70 0.60 0.70 0.560.80 0.70 0.80 0.650.90 0.79 0.90 0.731.00 0.88 1.00 0.821.50 1.40 1.50 1.332.00 1.87 2.00 1.792.50 2.35 2.50 2.243.00 2.82 3.00 2.703.50 3.30 3.50 3.154.00 3.78 4.00 3.604.50 4.25 4.50 4.065.00 4.73 5.00 4.516.00 5.68 6.00 5.427.00 6.63 7.00 6.338.00 7.59 8.00 7.249.00 8.54 9.00 8.159.99 9.48 9.99 9.05

RE / RELoop ()Limit Value

Max.Display Value

Limit Value

Max.Display Value

Limit Value

Max.Display Value

0.10 0.07 10.0 9.49 1.00 k 9060.15 0.11 15.0 13.6 1.50 k 1.36 k0.20 0.16 20.0 18.1 2.00 k 1.81 k0.25 0.20 25.0 22.7 2.50 k 2.27 k0.30 0.25 30.0 27.2 3.00 k 2.72 k0.35 0.30 35.0 31.7 3.50 k 3.17 k0.40 0.34 40.0 36.3 4.00 k 3.63 k0.45 0.39 45.0 40.8 4.50 k 4.08 k0.50 0.43 50.0 45.4 5.00 k 4.54 k0.60 0.51 60.0 54.5 6.00 k 5.45 k0.70 0.60 70.0 63.6 7.00 k 6.36 k0.80 0.70 80.0 72.7 8.00 k 7.27 k0.90 0.79 90.0 81.7 9.00 k 8.17 k1.00 0.88 100 90.8 9.99 k 9.08 k1.50 1.40 150 1332.00 1.87 200 1792.50 2.35 250 2243.00 2.82 300 2703.50 3.30 350 3154.00 3.78 400 3604.50 4.25 450 4065.00 4.73 500 4516.00 5.68 600 5427.00 6.63 700 6338.00 7.59 800 7249.00 8.54 900 815

RINS MLimit Value

Min.Display Value

Limit Value

Min.Display Value

0.10 0.12 10.0 10.70.15 0.17 15.0 15.90.20 0.23 20.0 21.20.25 0.28 25.0 26.50.30 0.33 30.0 31.70.35 0.38 35.0 37.00.40 0.44 40.0 42.30.45 0.49 45.0 47.50.50 0.54 50.0 52.80.55 0.59 60.0 63.30.60 0.65 70.0 73.80.70 0.75 80.0 84.40.80 0.86 90.0 94.90.90 0.96 100 1061.00 1.07 150 1581.50 1.59 200 2112.00 2.12 250 2642.50 2.65 300 3163.00 3.173.50 3.704.00 4.234.50 4.755.00 5.286.00 6.337.00 7.388.00 8.449.00 9.49

RLO Limit Value

Max.Display Value

Limit Value

Max.Display Value

0.10 0.07 10.0 9.590.15 0.12 15.0 14.40.20 0.17 20.0 19.20.25 0.22 25.0 24.00.30 0.26 30.0 28.80.35 0.31 35.0 33.60.40 0.36 40.0 38.40.45 0.41 45.0 43.20.50 0.46 50.0 48.00.60 0.55 60.0 57.60.70 0.65 70.0 67.20.80 0.75 80.0 76.90.90 0.84 90.0 86.51.00 0.94 99.9 96.01.50 1.422.00 1.902.50 2.383.00 2.863.50 3.344.00 3.824.50 4.305.00 4.786.00 5.757.00 6.718.00 7.679.00 8.63


Table 5

Table 6

Minimum Display Values for Short-Circuit Currentfor the determination of nominal current for various fuses and breakers for systems with nominal voltage of UN=230 V

ExampleDisplay value 90.4 A next smaller value for circuit breaker characteristic B from table: 85 A protective device nominal current (IN) max. 16 A

ZST kLimit Value

Min.Display Value

10 1415 1920 2525 3030 3635 4240 4745 5350 5856 6560 6970 8080 9290 103

100 114150 169200 253250 315300 378350 440400 503450 565500 628600 753700 878800 >999

Nominal Current IN

[A]

Low Resistance Fusesin accordance with the DIN VDE 0636 series of

standards

With Circuit Breaker and Line Switch

Characteristic gL, gG, gM Characteristic B/E (formerly L)

Characteristic C(formerly G, U)

Characteristic D

Characteristic K

Breaking Current IA 5 s Breaking Current IA 0.4 s Breaking Current IA5 x IN (< 0.2 s/0.4 s)

Breaking Current IA10 x IN (< 0.2 s/0.4 s)

Breaking Current IA20 x IN (< 0.2 s/0.4 s)

Breaking Current IA12 x IN (< 0.1 s)

Limit Value[A]

Min. Dis-play[A]

Limit Value[A]

Min. Display

[A]

Limit Value[A]

Min. Display

[A]

Limit Value[A]

Min. Display

[A]

Limit Value[A]

Min. Display

[A]

Limit Value[A]

Min. Display

[A]2 9.2 10 16 17 10 11 20 21 40 42 24 253 14.1 15 24 25 15 16 30 32 60 64 36 384 19 20 32 34 20 21 40 42 80 85 48 516 27 28 47 50 30 32 60 64 120 128 72 768 37 39 65 69 40 42 80 85 160 172 96 102

10 47 50 82 87 50 53 100 106 200 216 120 12813 56 59 98 104 65 69 130 139 260 297 156 16716 65 69 107 114 80 85 160 172 320 369 192 20720 85 90 145 155 100 106 200 216 400 467 240 27325 110 117 180 194 125 134 250 285 500 578 300 34532 150 161 265 303 160 172 320 369 640 750 384 44735 173 186 295 339 175 188 350 405 700 825 420 49240 190 205 310 357 200 216 400 467 800 953 480 55350 260 297 460 529 250 285 500 578 1000 1.22 k 600 70063 320 369 550 639 315 363 630 737 1260 1.58 k 756 89680 440 517 960 1.16 k

100 580 675 1200 1.49 k125 750 889 1440 1.84 k160 930 1.12 k 1920 2.59 k


20.2 Testing Electrical Machinery per DIN EN 60204 – Applica-tions, Limit Values

The PROFITEST 204+ test instrument has been developed for test-ing electrical machinery and controllers. After the standard was revised in 2007, measurement of loop impedance is now required as well. Measurement of loop impedance, as well as other mea-surements stipulated for the testing of electrical machinery, can also be performed with test instruments from the PROFITEST MASTER series.

Comparison of Specified Tests with the Standards

Continuous Electrical Bonding of the Protective Conductor SystemIn this case, continuous electrical bonding of a protective conductor system is tested by applying an alternating current within a range of 0.20 and 10 A at a line frequency of 50 Hz (= low-resistance measurement). Testing must be conducted between the PE terminal and various points within the protective conductor system.²

Loop Impedance MeasurementLoop impedance ZL-PE is measured and short-circuit current IK is ascertained, in order to determine whether or not breaking requirements for protective devices are being adhered to (see section 8).

Insulation Resistance MeasurementAll of the active conductors of the machine’s main circuit (L and N or L1, L2, L3 and N) are short circuited and measured against PE (protective conductor). Controllers or machine components which are not laid out for this voltage (500 V DC) may be disconnected from the measuring circuit during measurement. The measured value must be at least 1 MOhm. The test can be subdivided into individual steps.

Voltage Tests (with PROFITEST 204HP/HV only)The electrical equipment of a machine must withstand a test voltage applied between the conductors of all circuits and the protective conductor system for a period of at least 1 second, which is equal to twice the rated voltage of the equipment or 1000 V~, whichever is greater. The test voltage must have a frequency of 50 Hz, and must be generated by a transformer with a minimum power rating of 500 VA.

Voltage MeasurementsEN 60204 stipulates that residual voltage at all exposed, energized parts of a machine, at which more than 60 V are pres-ent during operation, must drop to a value of 60 V or less within a period of 5 seconds after supply voltage is switched off.

Function TestThe machine is operated with nominal voltage and is tested for correct functioning, in particular for correct safety functions.

Special Tests• Pulse control mode for troubleshooting (with PROFITEST 204HP/HV

only)• Protective conductor test with 10 A test current (with PROFITEST

204+ only)

Limit Values per DIN EN 60204, Part 1

Overvoltage Protection Device Characteristics for Limit Value Selection for Protective Conductor Testing

Test per DIN EN 60204, part 1(machines)

Test per DIN EN 61557(systems)

Meas. Func-tion

Continuous electrical bonding of the protective conductor system

Part 4: Resistance of: – Ground conductor– Protective conductor – Equi. bonding conductor

RLO

Loop impedance Part 3: Loop impedance ZL-PE

Insulation resistance Part 2: Insulation resistance RISO

Voltage test(dielectric strength test)

— —

Voltage Measurement(protection against residual voltage)

Part 10: Combination measuring in-struments (amongst others for volt-age measurement) for testing, measuring or monitoring protective measures

U

Function Test — —

Measurement Parameter Cross-Section

Standard Value

Protective conduc-tor measurement

Test duration 10 s

Limit value Protective conductor resis-tance in accordance with conductor cross-section (phase conductor L) and overcurrent protective de-vice characteristics (calcu-lated value)

1.5 mm²2.5 mm²4.0 mm²6.0 mm²10 mm² 16 mm² 25 mm² L(16 mm² PE)35 mm² L(16 mm² PE)50 mm² L(25 mm² PE)70 mm² L(35 mm² PE)95 mm² L(50 mm² PE)120 mm² L(70 mm² PE)

500 m500 m500 m400 m300 m200 m200 m

100 m

100 m

100 m

050 m

050 m

Insulation resistance measurement:

Nominal voltage 500 V DC

Resistance limit value 1 MLeakage current measurement

Leakage current 2.0 mA

Voltage measure-ment

Discharge time 5 s

Voltage testTest duration 1 s

Test voltage 1 kV or 2 UN

Break Times, Characteristics Available for Cross-SectionFuse, break time. 5 s All cross-sections

Fuse, break time. 0.4 s 1.5 through 16 sq. mm

Circuit breaker, characteristic BIa = 5x In – break time: 0.1s

1.5 through 16 sq. mm

Circuit breaker, characteristic CIa = 10x In – break time: 0.1 s

1.5 through 16 sq. mm

Adjustable circuit breakerIa = 8 x In - break time: 0.1s

All cross-sections


20.3 Periodic Testing per DGUV provision 3 (previously BGV A3) – Limit Values for Electrical Systems and Equipment

Limit Values per DIN VDE 0701-0702Maximum Permissible Limit Values for Protective Conductor Resistance for Connector Cables with Lengths of up to 5 m

1) This value may not exceed 1 for permanently connected data processing systems (DIN VDE 0701-0702).

2) Max. total protective conductor resistance: 1

Minimum Permissible Limit Values for Insulation Resistance

* With activated heating elements (if heating power > 3.5 kW and RISO < 0.3 M: leakage current measurement is required)

Maximum Permissible Limit Values for Leakage Current in mA

* For devices with heating power of greater than 3.5 kWNote 1: Devices which are not equipped with exposed parts that are con-

nected to the protective conductor, and which comply with re-quirements for housing leakage current and, if applicable, patient leakage current, e.g. data processing devices with shielded power pack

Note 2: Permanently connected devices with protective conductor

Note 3: Portable x-ray devices with mineral insulation

KeyIB Housing leakage current (probe or contact current)IDI Residual currentISL Protective conductor current

Maximum Permissible Limit Values for Equivalent Leakage Current in mA

1 For devices with heating power of greater than 3.5 kW

Test Standard Test Current Open-Circuit Voltage

RSLHousing – Mains Plug

VDE 0701-0702:2008 > 200 mA 4 V < UL < 24 V

0.3 1)

+ 0.1 2)

for each addi-tional 7.5 m

Test Stan-dard Test Voltage

RINS

PC I PC I I PC I I I HeatVDE 0701-0702:2008 500 V 1M 2 M 0.25 M 0.3 M *

Test Standard IPE IC IDI

VDE 0701-0702:2008 SC I: 3.51 mA/kW * 0.5

SC I: 3.5

1 mA/kW *

SC I I: 0.5

Test Standard IEL

VDE 0701-0702:2008SC I: 3.5

1 mA/kW 1)

SC I I: 0.5


20.4 List of Abbreviations and their Meanings

RCCBs (residual current device / RCD)I Tripping current

IN Nominal residual current

IF Rising test current (residual current)

PRCD Portable residual current devicePRCD-S : with detection and/or monitoring of protective conductorPRCD-K: with undervoltage tripping and protective conductor monitoring

RCD- Selective RCCB

RE Calculated earthing or earth electrode loop resistance

SRCD Socket residual current device (permanently installed)

ta Time to trip / breaking time

UI Contact voltage at moment of tripping

UIN Contact voltage relative to nominal residual current IN

UL Contact voltage limit value

Overcurrent Protective DevicesIK Calculated short-circuit current (at nominal voltage)

ZL-N Line impedance

ZL-PE Loop impedance

EarthingRB Operational earth resistance

RE Measured earthing resistance

RELoop Earth electrode loop resistance

Low-Value Resistance at Protective, Earthing and Bonding Con-ductorsRLO+ Bonding conductor resistance (+ pole to PE)

RLO– Bonding conductor resistance (– pole to PE)

InsulationRE(INS) Earth leakage resistance (DIN 51953)

RINS Insulation resistance

RST Standing surface insulation resistance

ZST Standing surface insulation impedance

CurrentIA Breaking current

IL Leakage current (measured with current transformer clamp)

IM Measuring current

IN Nominal current

IP Test current

Voltagef Line voltage frequency

fN Nominal voltage rated frequency

U Voltage drop as percentage

U Voltage measured at the test probes during and after measurement of insulation resistance RINS

UBatt Operating voltage

UE Earth electrode voltage

UINS For measurement of RINS: test voltage, for ramp function: triggering or breakdown voltage

UL-L Voltage between two phase conductors

UL-N Voltage between L and N

UL-PE Voltage between L and PE

UN Nominal line voltage

U3~ Highest measured voltage during determination of phase sequence

US-PE Voltage between probe and PE

UY Conductor voltage to earth

S


20.5 Index

AAbbreviations ..........................................................................68Adjusting Brightness and Contrast ............................................9Automatic test sequences ......................................................44

BBibliography ............................................................................70

CContact Voltage ......................................................................17Current Sensor Clamp

Measuring Ranges .................................................... 32, 39

DData Backup ...........................................................................50DB MODE ...............................................................................10DB-MODE ..............................................................................10

EEarth Electrode Loop Resistance ............................................31Earth Electrode Potential .........................................................31Earth Leakage Resistance ......................................................36Electric charging stations ........................................................43Electric vehicles ......................................................................43Extension Cables ....................................................................37

FFirmware Update ....................................................................10Fuses

Characteristic Values .......................................................55Replacement ...................................................................63

IInternet Addresses ..................................................................70

LLimit Values

per DIN EN 60 204 Part 1 ................................................66per DIN VDE 0701-0702 ..................................................67

Line-to-Line Voltage ................................................................15

MMASTER Updater ...................................................................10Memory

Occupancy Display ............................................................3MENNEKES test box ..............................................................43

NNominal Line Voltage (Display of UL-N) ...................................27Non-Trip Test .........................................................................19

PPhase Sequence ....................................................................15PRCD-K .................................................................................20PRCD-S .................................................................................21

RRCD-S ....................................................................................20Rechargeable Batteries

Insertion ............................................................................6Level Indicator ...................................................................3Testing ..............................................................................6

SSCHUKOMAT .........................................................................21Select system type (TN, TT, IT) ...............................................23Short-circuit current Calculation – Parameter IK ......................26SIDOS ....................................................................................21SRCD .....................................................................................21Standard

DIN EN 50178 (VDE 160) .................................................19DIN EN 60 204 ................................................................66DIN VDE 0100 .......................................................... 24, 30DIN VDE 0100 Part 410 ...................................................20DIN VDE 0100 Part 600 .....................................................5DIN VDE 0100 Part 610 ...................................................25

DIN VDE 0100 Teil 610 ................................................... 18EN 1081 ......................................................................... 36EN 60529/DIN VDE 0470 Part 1 ..................................... 56EN 61 326-1 ................................................................... 55IEC 61851 ....................................................................... 43ÖVE/ÖNORM E 8601 ...................................................... 22ÖVE-EN 1 ......................................................................... 5SEV 3755 ...................................................................5, 31VDE 0413 .......................................................... 16, 24, 28

Standing Surface Insulation Impedance ............................40, 41Symbols ................................................................................... 5

TTest sequence ....................................................................... 44Testing

Electrical Machinery ........................................................ 66per DGUV provision 3 ..................................................... 67with Biasing Current ........................................................ 19

Type G RCCB ........................................................................ 22

VVoltage Drop in % (Function ZL-N) ......................................... 27

Wwarranty seal ............................................................................ 5


20.6 Bibliography

20.6.1 Internet Addresses for Additional Information

Statutory Source DocumentsGerman occupational safety legislation (BetrSichV)Regulations issued by the accident insurance carriersTitle Information

Rule / RegulationPublisher Issue /

Order No.Betriebs Sicherheits Verordnung (BetrSichV)

BetrSichV

Elektrische Anlagen und Betriebsmittel

DGUV provision 3(up to now BGV A3)

DGUV (up to now HVBG)

2005

VDE StandardsGerman standard Title Date of

IssuePublisher

DIN VDE 0100-410

Protection against electric shock

2007-06 Beuth-Verlag GmbH

DIN VDE 0100-530

Erection of low-voltage installations Part 530: Selection and erection of electrical equip-ment - Switchgear and controlgear


DIN VDE 0100-600

Erection of low-voltage installationsPart 6: Tests


Series of standardsDIN EN 61557

Devices for testing, measur-ing or monitoring protective measures


DIN VDE 0105-100

Operation of electrical installations, part 100: General requirements


VDE 0122-1DIN EN 61851-1

Electric vehicle conductive charging system - Part 1: General requirements (IEC 69/219/CD:2012)


Internet Addresswww.dguv.de GUV information, rules and regulations

from Deutsche Gesetzliche Unfallversicherung e.V.

www.beuth.de VDE regulations, DIN standards, VDI directives from Beuth-Verlag GmbH

www.bgetf.de BG information, rules and regulations from gewerbli-che Berufsgenossenschaften e.g. BG ETEM (trade as-sociation for energy, textiles, electrical, Medienerzeug-nisse)


21 Repair and Replacement Parts ServiceCalibration Center* and Rental Instrument Service

If required please contact:

GMC-I Service GmbHService Center Thomas-Mann-Str. 16-2090471 Nürnberg • GermanyPhone +49 911 817718-0Fax +49 911 817718-253e-mail [email protected]

This address is only valid in Germany. Please contact our repre-sentatives or subsidiaries for service in other countries.

* DAkkS Calibration Laboratory for Electrical Quantities D-K-15080-01-01 accredited per DIN EN ISO/IEC 17025:2005Accredited measured quantities: direct voltage, direct current values, DC resistance, alternating voltage, alternating current values, AC active power, AC apparent power, DC power, capacitance, frequency and temperature

Competent PartnerGMC-I Messtechnik GmbH is certified in accordance with DIN EN ISO 9001:2008.Our DAkkS calibration laboratory is accredited by the Deutsche Akkreditierungfsstelle GmbH (National accreditation body for the Federal Republic of Germany) in accordance with DIN EN ISO/IEC 17025 under registration number D-K-15080-01-01.We offer a complete range of expertise in the field of metrology: from test reports and proprietary calibration certificates right on up to DAkkS calibration certificates.Our spectrum of offerings is rounded out with free test equipment management.An on-site DAkkS calibration station is an integral part of our service department. If errors are discovered during calibration, our specialized personnel are capable of completing repairs using original replacement parts.As a full service calibration laboratory, we can calibrate instruments from other manufacturers as well.

22 Recalibration The respective measuring task and the stress to which your mea-suring instrument is subjected affect the ageing of the compo-nents and may result in deviations from the guaranteed accuracy.

If high measuring accuracy is required and the instrument is fre-quently used in field applications, combined with transport stress and great temperature fluctuations, we recommend a relatively short calibration interval of 1 year. If your measuring instrument is mainly used in the laboratory and indoors without being exposed to any major climatic or mechanical stress, a calibration interval of 2-3 years is usually sufficient.

During recalibration* in an accredited calibration laboratory(DIN EN ISO/IEC 17025) the deviations of your instrument in rela-tion to traceable standards are measured and documented. The deviations determined in the process are used for correction of the readings during subsequent application.

We are pleased to perform DAkkS or factory calibrations for you in our calibration laboratory. Please visit our website at www.gossenmetrawatt.com ( Company DAkkS Calibration Center or FAQs Calibration questions and answers).

By having your measuring instrument calibrated regularly, you ful-fill the requirements of a quality management system per DIN EN ISO 9001.

* Verification of specifications or adjustment services are not part of the calibration. For products from our factory, however, any necessary adjustment is frequently performed and the observance of the relevant specification is confirmed.

23 Product SupportIf required please contact:

GMC-I Messtechnik GmbHProduct Support HotlinePhone +49 911 8602-0Fax +49 911 8602-709e-mail: [email protected]

Edited in Germany • Subject to change without notice • PDF version available on the Internet

GMC-I Messtechnik GmbHSüdwestpark 1590449 Nürnberg • Germany

Phone:+49 911 8602-111Fax: +49 911 8602-777e-mail: [email protected]