table of contents - himodel · 27 27 27 28 29 1 model ut60d: operating manual. accuracy...

TitleOverviewUnpacking InspectionSafety InformationRules For Safe OperationInternational Electrical SymbolsThe Meter StructureRotary SwitchFunctional ButtonsDisplay SymbolsMeasurement Ranges

A. Selecting a Measurement RangeB. Manual Ranging and Autoranging

Measurement OperationA. AC & DC Voltage MeasurementB. Measuring Continuity, Diodes &

ResistanceC. Frequency & Revolution (RPM)

MeasurementD. DC or AC Current Measurement

Turning on the Display BacklightThe BLUE ButtonThe RS232C ButtonOperation of Hold ModeFull Icons DisplaySleep ModeAnalogue Bar Graph DisplayGeneral Specifications

Table of Contents

Page345689

1011131515151717

19

22242626262727272829

1

Model UT60D: OPERATING MANUAL

Accuracy SpecificationsA. AC VoltageB. DC VoltageC. Continuity, Diodes & Resistance TestD. FrequencyE. Revolution (RPM)F. DC CurrentG. AC Current

MaintenanceA. General ServiceB. Testing the FusesC. Replacing the BatteryD. Replacing the Fuses

RS232C Serial PortA. RS232C Port CableB. Setting of RS232C Serial PortsC. System Requirements for Installing

the UT60D Interface Program

Page30303031323233333434353637383838

39


2

This Operating Manual covers information on safety andcautions. Please read the relevant information carefullyand observe all the Warnings and Notes strictly.

WarningTo avoid electric shock or personal injury, read the"Safety Information" and "Rules for Safe Operation"carefully before using the Meter.

Digital Multimeter Model UT60D (hereafter referred toas "the Meter") has autorange and manual range optionswith maximum reading 3400. The enclosure structuredesign adopted advanced "co-injection" technique inorder to provide sufficient insulation.

In addition to the conventional measuring functions, it isequipped with a 34 segments analogue bar graph andRS232C standard serial port for easy connection withcomputer to realize macro recording and monitoring andcapture of transient dynamic data, displaying change ofwaveform during the measurement, providing data andevidence to engineering technicians for scientific research.This is also a highly applied digital multimeter of goodperformance with full overload protection.

Overview


3

Open the package case and take out the Meter. Checkthe following items carefully to see any missing ordamaged part:

Unpacking Inspection

Item123

45

DescriptionOperating ManualTest Lead9V Battery (NEDA1604, 6F22 or006P) (installed)RS232C Interface CableCD-ROM (Installation Guide &Computer Interface Software)

Qty1 piece1 pair

1 piece

1 piece1 piece

In the event you find any missing or damage, pleasecontact your dealer immediately.


4

This Meter complies with the standards IEC61010: inpollution degree 2, overvoltage category (CAT. III 1000V,CAT. IV 600V) and double insulation.

CAT. III: Distribution level, fixed installation, with smallertransient overvoltages than CAT. IV

CAT IV: Primary supply level, overhead lines, cablesystems etc.

Use the Meter only as specified in this operating manual,otherwise the protection provided by the Meter may beimpaired.

In this manual, a Warning identifies conditions andactions that pose hazards to the user, or may damagethe Meter or the equipment under test.

A Note identifies the information that user should payattention on.

International electrical symbols used on the Meter andin this Operating Manual are explained on page 8.

Safety Information


5

WarningTo avoid possible electric shock or personal injury,and to avoid possible damage to the Meter or to theequipment under test, adhere to the following rules:

l Before using the Meter inspect the case. Do notuse the Meter if it is damaged or the case (orpart of the case) is removed. Look for cracksor missing plastic. Pay attention to the insulationaround the connectors.

l Inspect the test leads for damaged insulation orexposed metal. Check the test leads forcontinuity. Replace damaged test leads withidentical model number or electricalspecifications before using the Meter.

l Do not apply more than the rated voltage, asmarked on the Meter, between the terminals orbetween any terminal and grounding.

l The rotary switch should be placed in the rightposition and no any changeover of range shallbe made during measurement is conducted toprevent damage of the Meter.

l When the Meter working at an effective voltageover 60V in DC or 30V rms in AC, special careshould be taken for there is danger of electricshock.

l Use the proper terminals, function, and rangefor your measurements.

l Do not use or store the Meter in an environmentof high temperature, humidity, explosive,inflammable and strong magnetic field. Theperformance of the Meter may deteriorate afterdampened.

l When using the test leads, keep your fingersbehind the finger guards.

Rules For Safe Operation (1)


6

Rules For Safe Operation (2)

l Disconnect circuit power and discharge all high-voltage capacitors before testing continuity,diodes, resistance or current.

l Before measuring current, check the Meter’sfuses and turn off power to the circuit beforeconnecting the Meter to the circuit.

l Replace the battery as soon as the batteryindicator appears. With a low battery, theMeter might produce false readings that canlead to electric shock and personal injury.

l Remove test leads and RS232C interface cablefrom the Meter and turn the Meter power offbefore opening the Meter case.

l When servicing the Meter, use only the samemodel number or identical electricalspecifications replacement parts.

l The internal circuit of the Meter shall not bealtered at will to avoid damage of the Meter andany accident.

l Soft cloth and mild detergent should be used toclean the surface of the Meter when servicing.No abrasive and solvent should be used toprevent the surface of the Meter from corrosion,damage and accident.

l The Meter is suitable for indoor use.l Under the environment with high (+/-4kV)

electrostatic discharge, the Meter may not beoperated as normal condition. The user mayrequire resetting the Meter.

l Turn the Meter power off when it is not in useand take out the battery when not using for along time.

l Constantly check the battery as it may leak whenit has been using for some time, replace thebattery as soon as leaking appears. A leakingbattery will damage the Meter.


7

International Electrical Symbols

AC (Alternating Current)DC (Direct Current)AC or DCGroundingDouble InsulatedDeficiency of Built-In Battery.Continuity Test.Diode.Fuse.Warning. Refer to the Operating Manual.Conforms to Standards of European Union.


8

The Meter Structure (see figure 1)

(figure 1)

LCD Display Functional Buttons Rotary Switch HzV Input Terminal:

Input for voltage, frequency/rpm, resistance, diodeand continuity measurements.

COM Input Terminal:Return terminal for all measurements.

AmA Input Terminal:Input for 0.1 A to 340.0mA current measurements.

10A Input Terminal:Input for 0.01A to 10.00A current measurements.

1234

5

6

7


9

Rotary Switch

Below table indicated for information about the rotaryswitch positions.

Rotary SwitchPosition

OFFVHz

HzRPM

AHz

mAHz

HzA

Power is turned offDC voltage measurement range from340.0mV to 1000V orAC voltage measurement range from3.400V to 750.0V.

Continuity test.Diode test.

Resistance measurement rangefrom 340.0 to 34.00M .

Frequency measurement range from3.400KHz to 34.00MHz or RPMmeasurement.AC or DC current measurementrange from 340.0 A to 3400 A.AC or DC current measurementrange from 34.00mA to 340.0mA.AC or DC current measurement10.00A.

Function


10

Functional Buttons (1)

Below table indicated for information about the functionalbutton operations.

(BLUE)

Hz

DisplayBacklight

VHz

HzRPM

AHz

mAHz

HzA

DC/ACvoltage or

DC/ACcurrent

MeasuringFunction

Button

Press once to turn the DisplayBacklight on and it shall shut offautomatically in 10 seconds later.Switches between AC and DCvoltage; the Meter beeps. DC isdefault.Switches between continuity anddiode and resistancemeasurements; the Meter beeps.Resistance is default.Switches between Hz unit displayand RPM unit display; the Meterbeeps.This function is suitable forRPM Frequencyinterchanging measurement.Switches between AC and DCcurrent range from 340.0 A to3400 A; the Meter beeps. DC isdefault.Switches between AC and DCcurrent range from 34.00mA to340.0mA; the Meter beeps. DC isdefault.Switches between AC and DCcurrent 10.00A; the Meter beeps.DC is default.1. Press to start the frequency

counter; the Meter beeps.2. Press again to return to the

previous measurement mode;the Meter beeps.

Operation Performed


11

Press Hz button while turning onthe Meter to disable Sleep Modefeature.1. Press RANGE to enter the

manual ranging mode; the Meterbeeps.Manually selecting a rangecauses the Meter to exit the Holdmode.

2. Press RANGE to step throughthe ranges available for theselected function; the Meterbeeps.

3. Press and hold RANGE for over1 second to return to autoranging;the Meter beeps.

Press RANGE button while turningon the Meter to disable Sleep Modefeature.Turn on or off the serial portinterface without changing theoriginal setting.Press RS232C button while turningon the Meter to disable Sleep Modefeature.Press HOLD H to enter and exitthe Hold mode in any mode, theMeter beeps.l Press and hold HOLD H button

while turning on the Meter todisplay full icons.

l Press HOLD H again to returnto normal display mode.

RANGE

RS232C

HOLD H

At OFFposition

Any rotaryswitch

positionexcept at

, and Amode.

At OFFposition

Any rotaryswitch

positionAt OFFposition

Any rotaryswitch

positionAt OFFposition

Functional Buttons (2)


12

Display Symbols (1) (see figure 2)

(figure 2)

OLOL

1

14

15

17

5

3 4 67

2

8 9 , 10

13

16

11 , 12

Number MeaningSymbolAC

DC

RS232C

Indicator for AC voltage or current.The displayed value is the meanvalue.Indicator for DC voltage or current.The Meter is in the auto rangemode in which the Meterautomatically selects the range withthe best resolution.Data output is in progress.Data hold is active.The battery is low.

Warning: To avoid falsereadings, which could lead topossible electric shock orpersonal injury, replace thebattery as soon as the batteryindicator appears.Test of diode.The continuity buzzer is on.

1

23

456

78


13

The input value is too large for theselected range.

: Ohm. The unit of resistance.k : kilohm. 1 x 103 or 1000 ohms.M : Megaohm. 1 x 106 or

1,000,000 ohms.Hz : Hertz. The unit of frequency

in cycles/second.kHz : Kilohertz. 1 x 103 or

1,000 hertz.MHz: Megahertz. 1 x 106 or

1,000,000 hertz.V : Volts. The unit of voltage.mV : Millivolt. 1 x 10-3 or 0.001

volts.A : Amperes (amps). The unit

of current.mA : Milliamp. 1 x 10-3 or 0.001

amperes.A : Microamp. 1x 10-6 or

0.000001 amperes.Revolution Measurement.The unit: rev./min.Sleep Mode feature is enabled. Itcan be disabled by pressingRANGE, Hz or RS232C whenturning on the Meter.Indicates negative reading.

Analogue bar graph display.

Display Symbols (2) (see figure 2)

, k , M

Hz, kHz,MHz

V, mV

A, mA,A

RPM

----

9

10

11

12

13

14

1516

17


14

Measurement Ranges (1)

A measurement range determines the highest value theMeter can measure. Most Meter functions have morethan one range. See "Accuracy Specifications."

A. Selecting a Measurement Range

Being in the right measurement range is important:

l If the range is too low for the input, the Meter displays to indicate an overload.

l If the range is too high, the Meter will not displaythe most accurate measurement.

B. Manual Ranging and Autoranging

The Meter has both manual range and autorange options:

l In the autorange mode, the Meter selects the bestrange for the input detected.This allows you to switch test points without havingto reset the range.

l In the manual range mode, you select the range.This allows you to override autorange and lock theMeter in a specific range.

The Meter defaults to the autorange mode inmeasurement functions that have more than one range.When the Meter is in the autorange mode, isdisplayed.

To enter and exit the manual range mode:

1. Press RANGE.The Meter enters the manual range mode and turns off.Each presses of RANGE increments the range.When the highest range is reached, the Meter wrapsto the lowest range.


15

2. To exit the manual range mode, press and holdRANGE for over one second.The Meter returns to the autorange mode and is displayed.

Notel If you manually change the measurement range

after entering Hold mode, the Meter exits this mode.l Under diode, continuity and A range measurement,

only manual range mode is available.

Measurement Ranges (2)


16

Measurement Operation (1)

A. AC & DC Voltage Measurement

WarningTo avoid harms to you or damages to the Meter fromelectric shock, please do not attempt to measurevoltages higher thanDC1000V / AC750V rms, althoughreadings may be obtained.

AC Voltage Measurement (see figure 3)

(figure 3)

The AC voltage ranges are: 3.400V, 34.00V, 340.0V and750.0V. To measure AC Voltage, connect the Meter asfollows:

1. Insert the red test lead into the HzV terminal andthe black test lead into the COM terminal.

2. Set the rotary switch to V Hz and press BLUEbutton to select AC measurement mode.

3. Connect the test leads across with the object beingmeasured.The measured value shows on the display, which iseffective value of sine wave (mean value response).

Notel In each range, the Meter has an input impedance

of 10M . This loading effect can causemeasurement errors in high impedance circuits. Ifthe circuit impedance is less than or equal to 10k ,the error is negligible (0.1% or less).

blackred


17


l When AC voltage measurement has beencompleted, disconnect the connection between thetesting leads and the circuit under test.

DC Voltage Measurement (see figure 4)

The DC Voltage ranges are: 340.0mV, 3.400V, 34.00V,340.0V and 1000V. To measure DC voltage, connectthe Meter as follows:


2. Set the rotary switch to V Hz; DC measurementis default or press BLUE button to select DCmeasurement mode.

3. Connect the test leads across with the object beingmeasured.The measured value shows on the display.

Notel In each range, the Meter has an input impedance

of 10M . This loading effect can causemeasurement errors in high impedance circuits. Ifthe circuit impedance is less than or equal to 10k ,the error is negligible (0.1% or less).

l When DC voltage measurement has beencompleted, disconnect the connection between thetesting leads and the circuit under test.

(figure 4)

blackred


18

B. Measuring Continuity, Diodes & Resistance

WarningTo avoid damages to the Meter or to the devicesunder test, disconnect circuit power and dischargeall the high-voltage capacitors before measuringcontinuity, diodes & resistance.

Testing for Continuity (see figure 5)


To test for continuity, connect the Meter as below:


2. Set the rotary switch to and press BLUEbutton to select measurement mode.

3. The buzzer sounds if the resistance of a circuit undertest is less than 50 .

Notel The LCD displays indicating the circuit being

tested is open.l When continuity testing has been completed,

disconnect the connection between the testing leadsand the circuit under test.

(figure 5)

W

blackred


19

Testing Diodes (see figure 6)


(figure 6)

Use the diode test to check diodes, transistors, and othersemiconductor devices. The diode test sends a currentthrough the semiconductor junction, then measures thevoltage drop across the junction. A good silicon junctiondrops between 0.5V and 0.8V.

To test a diode out of a circuit, connect the Meter asfollows:


2. Set the rotary switch to and press BLUEbutton to select measurement mode.

3. For forward voltage drop readings on anysemiconductor component, place the red test leadon the component's anode and place the black testlead on the component's cathode.The measured value shows on the display.

Notel In a circuit, a good diode should still produce a

forward voltage drop reading of 0.5V to 0.8V;however, the reverse voltage drop reading can varydepending on the resistance of other pathwaysbetween the probe tips.

W

blackred


20


l Connect the test leads to the proper terminals assaid above to avoid error display.

l The LCD will display indicating open-circuit forwrong connection.

l The unit of diode is Volt (V), displaying the positive-connection voltage-drop value.

l When diode testing has been completed, disconnectthe connection between the testing leads and thecircuit under test.

Resistance Measurement (see figure 7)

(figure 7)

The resistance ranges are: 3.400k , 34.00k , 340.0k ,3.400M and 34.00M . To measure resistance,connect the Meter as follows:


2. Set the rotary switch to , resistancemeasurement ( ) is default or press BLUE buttonto select measurement mode.


W

blackred


21

Notel The test leads can add 0.1 to 0.2 of error to

resistance measurement. To obtain precisionreadings in low-resistance measurement, that is therange of 340.0 , short-circuit the input terminalsbeforehand and record the reading obtained (calledthis reading as X). (X) is the additional resistancefrom the test lead.Then use the equation:

measured resistance value (Y) - (X) = precisionreadings of resistance.

l For high-resistance measurement (>1M ), it isnormal taking several seconds to obtain a stablereading.

l If reading with shorted test leads is not 0.5 ,check for loose test leads, incorrect function selection,or enabled Data Hold function.

l The LCD displays indicating open-circuit for thetested resistor or the resistor value is higher thanthe maximum range of the Meter.

l When resistance measurement has been completed,disconnect the connection between the testing leadsand the circuit under test.

C. Frequency & Revolution (RPM) Measurement(see figure 8)


(figure 8)

blackred


22

The frequency measurement ranges are :3.4kHz, 34kHz,340kHz, 3.4MHz, 34MHz. To measure frequency, connectthe Meter as follows:


2. Set the rotary switch to HzRPM; frequencymeasurement (Hz) is default or press Hz to selectHz measurement mode when it is under V Hz,A Hz, mA Hz or Hz A range.


4. At HzRPM range, revolution unit can be displayedby pressing BLUE button until the RPM symbol isshown on the display.Press BLUE button again to return to frequency unitdisplay.

Notel To obtain a stable reading when measuring:

Input scope 30V rms frequency signal:Set the rotary switch to V Hz, A Hz,mA Hz or Hz A.Then press Hz to select Hz measurementmode to obtain frequency value.Press RANGE at that time can change thefrequency sensitivity.

Input scope <30V rms frequency signal:Follow the above step 2 carrying out themeasurement.

l When Hz measurement has been completed,disconnect the connection between the testing leadsand the circuit under test.



23


D. DC or AC Current Measurement (see figure 9)

WarningNever attempt an in-circuit current measurementwhere the open-circuit voltage between the circuitand ground is greater than 250V.If the fuse burns out during measurement, the Metermay be damaged or the operator himself may behurt. Use proper terminals, function, and range forthe measurement. When the testing leads areconnected to the current terminals, do not parallelthem across any circuit.

The current measurement has 3 measurement positionson the rotary switch: A Hz, mA Hz or Hz A.

The A Hz has a 340.0 A and 3400 A range, withauto ranging; the mA Hz has a 34.00mA and 340.0mArange, with auto ranging; Hz A position has only a10.00A range, with manual ranging only.

To measure current, do the following:1. Turn off power to the circuit. Discharge all high-

voltage capacitors.2. Insert the red test lead into the AmA or 10A or

terminal and the black test lead into the COMterminal.

(figure 9)

redblack


24

3. Set the rotary switch to A Hz, mA Hz or Hz A.Use the 10A terminal and Hz A measurementposition if the current value to be tested is anunknown.

4. The Meter defaults to DC current measurementmode. To toggle between DC and AC currentmeasurement function, press BLUE button.AC current is displayed as an mean value (calibratedagainst sine wave effective value).

5. Break the current path to be tested. Connect thered test lead to the more positive side of the breakand the black test lead to the more negative side ofthe break.

6. Turn on power to the circuit.The measured value shows on the display.

Notel For safety sake, the measuring time for high current

should be 10 seconds for each measurement andthe interval time between 2 measurements shouldbe greater than 15 minutes.

l When current measurement has been completed,disconnect the connection between the testing leadsand the circuit under test.



25

Turning on the Display Backlight

WarningIn order to avoid the hazard arising from mistakenreadings in insufficient light or poor vision, pleaseuse Display Backlight function.

l Press once to turn the Display Backlight on.l Display Backlight will automatically shut off in about

10 seconds later.

The BLUE button

It uses for selecting the required measurement functionwhen there is more than one function at one position ofthe rotary switch.

The RS232C button

Press RS232C to enter or exit data output mode.

In RS232C serial port data output mode, if the Meter isunder the Hold operation, the Meter will display thecorresponding operation’s data. However, the serial portoutput the instantaneous data from the input terminals.

In RS232C serial port data output mode, the Sleep Modefunction will be disabled.


26

Operation of Hold Mode

WarningTo avoid possibility of electric shock, do not useHold mode to determine if circuits are without power.The Hold mode will not capture unstable or noisyreadings.

The Hold mode is applicable to all measurement functions.l Press HOLD H to enter Hold mode; the Meter beeps.l Press HOLD H again or RANGE or turn the rotary

switch to exit Hold mode; the Meter beeps.l In Hold mode, is displayed.

Full Icons Display

If the Meter is turned on with HOLD H being pressedon, the LCD will display all the icons and maintain thismode until the LCD enters normal display mode whenthe HOLD H is pressed again.

Sleep Mode

l To preserve battery life, the Meter automaticallyturns off if you do not turn the rotary switch or pressany button for 10 minutes.

l The Meter can be activated by turning the rotaryswitch or pressing any button other than .

l The Meter will display the last measurement valuebefore it entered Sleep Mode if it is activated bypressing any button other than and it was not inthe continuity measurement mode before it enteredSleep Mode.If the Meter is activated by turning the rotary switch,it will start from the switch selected function.

l To disable the Sleep Mode, press Hz, RANGE orRS232C button while turning on the Meter.


27

The analogue bar graph likes the needle in a traditionalanalogue meter (AMM). It refreshes 10 times a sec,which is much faster than that of digital display and isapplied to zero adjustment and observation of rapidlychanging signal that make digital display hard to read.

The analogue display is divided uniformly into 10 scalesand composed of 34 segments; of which the full-rangevalue corresponds to the full-range value of themeasurement range that has been selected. The polarityof the measured value is displayed as "-" on the left ofthe analogue display: positive polarity is not displayed.For example, when 34V range is selected, the full-rangevalue of the analogue display is 34V, and as the fullrange is uniformly divided into 34 grades, each gradedenotes 1V. If the input is 17V, the high-lighted bar-shapewill be at the position indicated by the number 17. if theinput is -17V, a "-" sign will appear on the left of theanalogue display.

Analogue Bar Graph Display


28

General Specifications

l Maximum Voltagebetween any Terminalsand Grounding

l Fused Protection forµAmA Input Terminal

l Fused Protection for10A Input Terminal

: 1000V rms.

: 0.5A,250V fast type Glassfuse, 5x20mm

: 10A,250V fast type Glassfuse, 5x20mm

: Display: 3400 and 34 segments analogue bar graph.

: Updates 3 times /second.: 0oC~40oC (32oF ~104 oF).: -10oC~50oC (14oF~122oF).: 75% @ 0oC - 30oC;

50% @ 31oC - 40oC.: 2000 m; Storage:10000 m.: One piece of 9V

NEDA1604 or 6F22 or006P.

: Display .: Display H .: Display .: Display .

: 177 x 85 x 40 mm.: Approximate 300g (battery

included).: IEC61010 CAT.III 1000V,

CAT.IV 600V overvoltageand double insulationstandard.

: ,UL & CUL

l Maximum Display

l Measurement Speedl Temperature: Operating Storagel Relative Humidity

l Altitude: Operatingl Battery Type

l Battery Deficiencyl Data Holdingl Negative readingl Overloadingl Equipped with full icons display.l Auto and manual range selectable.l Dimensions (HxWxL)l Weight

l Safety/Compliances

l Certification


29

Range340mV

3.4V34V

340V1000V

Resolution0.1mV1mV

10mV100mV

1V

Accuracy(0.8%+3)

(0.8%+1)

(1%+3)

Overload Protection

1000V DC750V AC rmscontinuous.

Range3.4V34V

340V750V

Resolution1mV

10mV100mV

1V

Accuracy

(2.5%+3)

Accuracy Specifications (1)

Accuracy: (a% reading + b digits), guarantee for 1 year.Operating temperature: 23oC 5oC.Relative humidity: <75%.Temperature coefficient: 0.1 x (specified accuracy) / 1oC.

A. AC Voltage

Remarks:l Input impedance 10M .l Displays effective value of sine wave (mean value

response).l Frequency response:

<34V: 45Hz ~ 20kHz, -3dB can reach 1000kHz.34V: 45Hz ~ 1kHz, -3dB can reach 30kHz.

B. DC Voltage

Remark: Input impedance 10M .

(1.5%+3)[lf the signal frequency being

measured 10kHz,accuracy: 4%+4


30


C. Continuity, Diodes & Resistance Test

Range

Continuity Test(340.0 )

Diode

340

3.4k34k

340k3.4M34M

Resolution

0.1

1mV

0.1

110

1001k

10k

Accuracy

Approximate 50

N/A(1.2%+2)+short circuitresistance

(1%+2)

(1.2%+2)(1.5%+2)

OverloadProtection

600Vp

Remarks:l Continuity Test 340.0 Range:

Buzzer beeps continuously.Open circuit voltage approximate 1.2V.

l Diode Range:Open circuit voltage approximate 2.8V.Displays approximate forward current drop reading1mA.

l 340 Range:Open circuit voltage approximate 1.2V.

l 3.4k ~ 34M Range:Open circuit voltage approximate 0.5V.


31


D. Frequency

Range3.4kHz34kHz

340kHz3.4MHz34MHz

Resolution1Hz

10Hz100Hz1kHz

10kHz

Accuracy

(0.2%+2)

Overload Protection

600Vp

Remarks:l 100mV Input amplitude 30V rms.l At voltage and current range (VAHz):

Range

10Hz~1kHzAccuracy

(2%+3)Input amplitude: 1000 digits.

E. Revolution (RPM)

Range34k

340k3.4M34M

340M

Resolution0.01k0.1k1k

10k100k

Accuracy

(0.2%+2)

Overload Protection

600Vp

Remark:l 100mV Input amplitude 30V rms.


32


F. DC Current

Remark:l 10A Range:

For continuous measurement 10 seconds andinterval time between 2 measurements greater than15 minutes.

G. AC Current

Remarks:l Frequency response 40Hz ~ 1kHz.l Displays effective value of sine wave (mean value

response).l 10A Range:

For continuous measurement 10 seconds andinterval time between 2 measurements greater than15 minutes.

Range340 A

3400 A34mA

340mA

10A

Resolution0.1 A1 A

10 A100 A

10mA

Accuracy

(1.2%+2)

(1.5%+2)

Overload Protection

0.5A, 250V, fast typeGlass fuse, 5x20 mm.

10A, 250V, fast typeGlass fuse, 5x20 mm.

Range340 A

3400 A34mA

340mA

10A

Resolution0.1 A1 A

10 A100 A

10mA

Accuracy

(1.5%+5)

(2.5%+5)

Overload Protection

0.5A, 250V, fast typeGlass fuse, 5x20 mm.

10A, 250V, fast typeGlass fuse, 5x20 mm.


33

This section provides basic maintenance informationincluding battery and fuse replacement instruction.

WarningDo not attempt to repair or service your Meter unlessyou are qualified to do so and have the relevantcalibration, performance test, and service information.To avoid electrical shock or damage to the Meter, donot get water inside the case.

A. General Service

l Periodically wipe the case with a damp cloth andmild detergent. Do not use abrasives or solvents.

l To clean the terminals with cotton bar with detergent,as dirt or moisture in the terminals can affect readings.

l Turn the Meter to OFF position when it is not in useand take out the battery when not using for a longtime.

l Do not store the Meter in a place of humidity, hightemperature and strong magnetic field.

Maintenance (1)


34

Maintenance (2)

B. Testing the Fuses

WarningTo avoid electrical shock or personal injury, removethe test leads and any input signals before replacingthe battery or fuse.To prevent damage or injury, install ONLY replacementfuses with identical amperage, voltage, and speedratings.

To test the fuse:

1. Set the rotary switch to and select bypressing BLUE button.

2. Plug a test lead into the terminal HzV and touchthe probe tip to the 10A or µAmA terminal.l If the Meter beeps, the fuse is good.l If the display shows , replace the fuse and

test again.l If the display shows any other value, have the

Meter serviced and contact your dealerimmediately.

If the Meter does not work while the fuse is all right, sendit to your dealer for repair.


35

(figure 10)

WarningTo avoid false readings, which could lead to possibleelectric shock or personal injury, replace the batteryas soon as the battery indicator " " appears.

To replace the battery:

1. Turn the Meter to OFF position and remove allconnections from the terminals.

2. Remove the screw from the battery compartment,and separate the battery compartment from the casebottom.

3. Remove the battery from the battery compartment.4. Replace the battery with a new 9V battery

(NEDA1604, 6F22 or 006P).5. Rejoin the case bottom and battery compartment,

and reinstall the screw.

C. Replacing the Battery (see figure 10)

Maintenance (3)


36

Maintenance (4)

D. Replacing the Fuses (see figure 11)

(figure 11) f

WarningTo avoid electrical shock or arc blast, or personalinjury or damage to the Meter, use specified fusesONLY in accordance with the following procedure.

To replace the Meter's fuse:

1. Turn the Meter to OFF position and remove allconnections from the terminals.

2. Remove the screw from the battery compartment,and separate the battery compartment from the casebottom.

3. Remove the 2 rubber feet and 2 screws from thecase bottom, and separate the case top from thecase bottom.

4. Remove the fuse by gently prying one end loose,then take out the fuse from its bracket.

5. Install ONLY replacement fuses with the identicaltype and specification as follows and make sure thefuse is fixed firmly in the bracket.

Fuse 1: 0.5A, 250V, fast type Glass fuse, 5x20mm.

Fuse 2: 10A, 250V, fast type Glass fuse, 5x20 mm.


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Maintenance (5)

Replacement of the fuses is seldom required. Burningof a fuse always results from improper operation.

RS232C Serial Port (1)

B. Setting of RS232C Serial Ports

Default of RS232C serial port for communication is setas:Baud Rate 2400Start bit 1 (always 0)Stop bit 1 (always 1)Data bits 7Parity 1 (odd)

The Meter

A. RS232C Port Cable

D-sub9 Pin Male

23

4

5678

ComputerD-sub9 Pin

Female23

4

5678

D-sub25 PinFemale

32

20

7645

PinName

RXTX

DTR

GNDDSRRTSCTS

Remark

Receiving DataTransmitting DataData TerminalReadyGroundingData Set ReadyRequest To SendClear To Send

6. Rejoin the battery compartment and the case top, and reinstall the screw.7. Rejoin the case bottom and case top, and reinstall the 2 screws and 2 rubber feet.


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RS232C Serial Port (2)

C. System Requirements for Installing the UT60DInterface Program

To use UT60D Interface Program, you need the followinghardware and software:l An IBM PC or equivalent computer with 80486 or

higher processor and 640 x 480 pixel or bettermonitor.

l Microsoft Windows 95 or above.l At least 8MB of RAM.l At least 8MB free space in hard drive.l Can access to a local or a network CD-ROM.l A free serial port.l A mouse or other pointing device supported by

Windows.

Please refer to the included "Installation Guide &Computer Interface Software" for installing andoperating instructions of the UT60D Interface Program.

~ END ~This operating manual is subject to change without notice.


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Manufacturer: UNI-TREND TECHNOLOGY(DONG GUAN)LIMITEDAddress: Dong Fang Da Dao, Bei Shan Dong Fang Industrial Development District, Hu Men Town, Dong Guan City, Guang Dong Province, ChinaHeadquarters: Uni-Trend International LimitedAddress: Rm901, 9/F, Nanyang Plaza 57 Hung To Road Kwun Tong Kowloon, Hong KongTel: (852) 2950 9168Fax: (852) 2950 9303Email: [email protected]://www.uni-trend.com

Copyright 2001 Uni-Trend International Limited.All rights reserved.


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