dissolved oxygen analyzer user manual

8/10/2019 Dissolved Oxygen Analyzer User Manual

1/92

Operator Manual

POLYMETRON 9182Oxygen analyzer (ppb)

221=191=082 - Revision G - 20/11/2007


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Restriction of Hazardous Substances

Note:The following only applies to exports of the product into the Peoples Republic of China.

Marking

Products contain toxic or hazardous substances or elements.

Environment Protection Use Period Marking (years).

Toxic or Hazardous Substances and Elements

Part NameLead(Pb)

Mercury(Hg)

Cadmium(Cd)

HexavalentChromium

(Cr VI)

PolybromBiphenyls

(PBB)

PolybromDiphenyls

(PBDE)

Transmitter box X

CPU PCB O O

Power PCB O O

Relay PCB O O

Module O

Probes O

Cable O

O: Indicates that this toxic or hazardous substance contained in all homogeneous material for this part is below the limit requirement

X: Indicates that this toxic or hazardous substance contained in at least one of thehomogeneous materials used for this part is above the limit requirement


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Oxyg en analyser (ppb) - 9182 -

i

This instrument conforms to the European Directives:

- 89/336/CEE modified by the directive 93/68/CEE- 73/23/CEE modified by the directive 93/68/CEE

Warning!

There are no user-serviceable parts in either the transmitter or sensor. Only Hach Ultra Analytics personnel or their authorized representative should attempt repair of the system andonly components expressly approved by the manufacturer should be used. Any attempt torepair the instrument in contradiction of these guidelines may result in damage to theinstrument and injury to the person making the repair. It will also void the warranty and maycompromise the safe operation, electrical integrity or CE compliance of the instrument.

Note:

This equipment has been tested and found to comply with the limits for Class A digital device,pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonableprotection against harmful interference when the equipment is operated in a commercialenvironment. This equipment generates, uses, and can radiate radio frequency energy and, ifnot installed and used in accordance with the instruction manual, may cause harmfulinterference to radio communications. Operation of this equipment in a residential area is likelyto cause harmful interference in which case the user will be required to correct the interferenceat his own expense.

Precautionary Labels:

Read all labels and tags attached to the instrument. Personal injury or damage to thisinstrument could occur if not observed.

This symbol, if noted on the instrument, references the instruction manual foroperation and / or safety information.

Electrical equipment marked with this symbol may not be disposed of inEuropean public disposal systems after 12 August of 2005. In conformity with

European local and national regulations (EU Directive 2002/96/EC), Europeanelectrical equipment users must now return old or end-of life equipment to theProducer for disposal at no charge to the user.

Note: For return for recycling, please contact the equipment producer or supplierfor instructions on how to return end-of-life equipment for proper disposal.Important document. Retain with product records.

!


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ii

COPYRIGHT

All rights reserved. No part of this publication may bereproduced, stored in a retrieval system, or transmitted, in anyform or by any means, electronic, mechanical, photocopying,recording or otherwise, without prior permission of Hach Ultra

Analytics .

Hach Ultra Analytics

Hach Ultra Analytics can take no responsability for installationand/or use of its equipment if this is not done in accordancewith the appropriate issue and/or amendment of the relevantmanual.

The user of this manual should ensure that it is appropriate inall details to the exact equipment to be installed and/oroperated. If in doubt, the user should contact Hach Ultra

Analytics for advice.

WARNING

To maintain safety standards, regular maintenance,calibration and operation of this equipment by qualifiedpersonnel is essential. Read and understand Instructionmanual completely before operating or servicing. If anyfurther details are required which do not appear in thismanual contact Hach Ultra Analytics or their agent.


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iii

Warnings

Changing the programming language

The programming language is English when factory-programmed, when changingthe software version and when loading the default values. To change the languagefollow the procedure below (example for French):

(Press 3 times)

!

AVERAGE

CODESOFT ISSUEDEFAUT VAL.ADJUST mACONFIGURATIONPOLYMETRON

SERVICE

Select

DISPLAY

CALIBRATIONMAINTENANCEPROGRAMMING

MENU

Select

SERVICE

CONC : ppb/ppm

TEMP. : C

PRESSION : mmHg

LANGUE :

AFFICHAGE

Choix

F

CONC : ppb/ppmTEMP. : C

PRESSURE : mmHg

LANGUAGE :

DISPLAY

Select

GB

CONC : ppb/ppm

TEMP. : C

PRESSURE : mmHg

LANGUAGE :

DISPLAY

Select

F

6.59ppb

23.2 C O2

Disp2 Menu Enter

Enter

Enter

Esc


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iv

Programming the mains supply frequency:

When your programming language is chosen, you may change the mains supplyfrequency if necessary. This change occurs at the first switching on andafterresetting the instrument. Follow the procedure below:

AVERAGEDISPLAYCODESOFT ISSUEDEFAULT VAL.

ADJUST mA

POLYMETRON

SERVICE

Select

CONFIGURATION

CALIBRATIONMAINTENANCEPROGRAMMING

MENU

Select

SERVICE

FREQ :

CONFIGURATION

Select

50Hz

6.59ppb

23.2C O2

Disp2 Menu Enter

Enter

FREQ :

CONFIGURATION

60Hz

Enter

!

Enter Resetthe instrument


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Table of contents

Page

Warnings ....................................................................................................................................iii

Chapter 1: Introduction............................................................................................................. 1-1 1.1 Introduction........................................................................................................ 1-1 1.2 Principle of operation........ ......... ......... ........ ......... ........ ......... ........ ......... ........ ...... 1-1 1.3 Main characteristics............................................................................................ 1-3 1.4 Technical characteristics.... ........ ......... ......... ........ ......... ........ ......... ........ ......... .... 1-3 1.5 Dimensions ........................................................................................................ 1-6

Chapter 2: Description of the analyser......... ......... ........ ......... ........ ......... ......... ........ ......... ........ 2-1

2.1 Analytical part .................................................................................................... 2-1 2.2 Hydraulic mounting ............................................................................................. 2-2 2.3 Transmitter......................................................................................................... 2-3

2.3.1 Presentation of the transmitter ........ ......... ........ ......... ........ ......... ........ ...... 2-3 2.3.2 Application fields .................................................................................... 2-5 2.3.3 Standard mounting possibilities (use of the red clamping bow) .... .... .... .... .... 2-5

Chapter 3: Installation of the instrument......... ......... ........ ......... ........ ......... ........ ......... ........ ...... 3-1 3.1 Unpacking.......................................................................................................... 3-1 3.2 Inspection .......................................................................................................... 3-1 3.3 Mounting............................................................................................................ 3-1 3.4 Location............................................................................................................. 3-1 3.5 Electrical connections ......................................................................................... 3-2

3.6 Description of the different terminals ........ ........ ......... ......... ........ ......... ........ ......... . 3-3 3.7 Mains connection ............................................................................................... 3-4 3.8 Starting the transmitter........ ......... ........ ......... ......... ........ ......... ........ ......... ........ ... 3-4 3.9 Adjusting the display contrast.......... ........ ......... ........ ......... ......... ........ ......... ........ 3-4

Chapter 4: Using the instrument............. ......... ......... ........ ......... ........ ......... ........ ......... ........ ...... 4-1 4.1 Front panel keys................................................................................................. 4-1 4.2 Displays 1 to 4 (live displays)........ ........ ......... ......... ........ ......... ........ ......... ........ ... 4-2 4.3 Description of the function keys ........ ......... ........ ......... ........ ......... ........ ......... ....... 4-3 4.4 Icons ................................................................................................................. 4-3 4.5 Enter or modify a value..... ......... ......... ........ ......... ........ ......... ........ ......... ........ ...... 4-4 4.6 Warnings ........................................................................................................... 4-4

Chapter 5: Programming the transmitter ........ ......... ........ ......... ........ ......... ........ ......... ........ ...... 5-1

5.1 Main menu......................................................................................................... 5-1 5.1.1 Calibration Menu........... ......... ........ ......... ........ ......... ........ ......... ........ ...... 5-2 5.1.2 MAINTENANCE Menu......... ........ ......... ........ ......... ......... ........ ......... ........ 5-3 5.1.3 PROGRAMMING Menu.......... ........ ......... ........ ......... ........ ......... ........ ...... 5-3

5.1.3.1 MEASURE Menu ....................................................................... 5-4 5.1.3.2 ALARMS Menu .......................................................................... 5-5 5.1.3.3 mA OUTPUTS menu............ ........ ......... ........ ......... ........ ......... .... 5-8 5.1.3.4 RS485 Menu.............................................................................5-11

5.1.4 SERVICE Menu.....................................................................................5-12 5.1.4.1 AVERAGE Menu.......................................................................5-12 5.1.4.2 DISPLAY Menu.........................................................................5-13 5.1.4.3 CODE Menu ........ ......... ........ ......... ......... ........ ......... ........ .........5-14


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5.1.4.4 SOFT VERSION Menu.............. ......... ........ ......... ........ ......... ......5-15 5.1.4.5 DEFAUT VAL. Menu..................................................................5-15 5.1.4.6 mA ADJUST Menu ........ ........ ......... ......... ........ ......... ........ .........5-16 5.1.4.7 CONFIGURATION Menu ........ ......... ......... ........ ......... ........ .........5-17 5.1.4.8 POLYMETRON Menu ........ ......... ........ ......... ........ ......... ........ .....5-17

Chapter 6: Calibrating temperature compensation... ......... ........ ......... ........ ......... ........ ......... .... 6-1 6.1 Calibration of the temperature sensor............... ......... ......... ........ ......... ........ ......... . 6-1

6.1.1 Automatic temperature compensation............... ......... ........ ......... ........ ...... 6-2 6.1.2 Manual temperature compensation...... ......... ......... ........ ......... ........ ......... . 6-3

6.2 Calibration of the measurement. ........ ......... ........ ......... ........ ......... ........ ......... ....... 6-4 6.2.1 Slope calibration in the air + electrical zero ......... ........ ......... ........ ......... .... 6-4 6.2.2 Slope calibration in the air + chemical zero ......... ........ ......... ........ ......... .... 6-5 6.2.3 Slope process calibration + electric zero........... ......... ........ ......... ........ ...... 6-6 6.2.4 Slope process calibration + chemical zero ........ ......... ........ ......... ........ ...... 6-7

Chapter 7: Start up, maintenance and troubleshooting ......... ........ ......... ......... ........ ......... ........ 7-1

7.1 Start up ............................................................................................................. 7-1 7.1.1 Assembling the probe ............................................................................. 7-1 7.1.2 Probe connection................ ........ ......... ........ ......... ......... ........ ......... ........ 7-3 7.1.3 Main power supply connection ........ ......... ........ ......... ........ ......... ........ ...... 7-3 7.1.4 Starting up the analyser ......... ........ ......... ........ ......... ........ ......... ........ ...... 7-3

7.2 Changing the membrane............. ......... ......... ........ ......... ........ ......... ........ ......... .... 7-4 7.2.1 Dismounting the membrane........ ........ ......... ......... ........ ......... ........ ......... . 7-5 7.2.2 Mounting the new membrane ......... ........ ......... ........ ......... ........ ......... ....... 7-6

7.3 Oxygen electrode rejuvenation procedure ........ ......... ........ ......... ........ ......... ........ ... 7-7 7.4 Functional troubleshooting.. ........ ......... ......... ........ ......... ........ ......... ........ ......... .... 7-7 7.5 Electrical troubleshooting ......... ........ ......... ........ ......... ........ ......... ........ ......... ......7-11

Chapter 8: Error messages......... ........ ......... ........ ......... ........ ......... ......... ........ ......... ........ ......... . 8-1

Appendix 1: Pressure conversion table ......... ........ ......... ........ ......... ........ ......... ........ ......... ..... A1-1

Appendix 2: Temperature conversion table........... ......... ........ ......... ........ ......... ........ ......... ..... A2-1

Appendix 3: Default values........ ........ ......... ........ ......... ........ ......... ......... ........ ......... ........ ........ A3-1

Appendix 4: Detailed cable connections ........ ......... ........ ......... ........ ......... ........ ......... ........ .... A4-1

Appendix 5: Security data sheet........... ......... ........ ......... ........ ......... ........ ......... ........ ......... ..... A5-1

Appendix 6: Spare parts list....... ........ ......... ........ ......... ........ ......... ......... ........ ......... ........ ........ A6-1

Appendix 7: RS485 MODBUS-JBUS addressing............ ........ ......... ......... ........ ......... ........ ........ A7-1


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1-1

Chapter 1: Introduction

1.1 Introduction

The 9182 oxygen analyser is a one-channel analyser for the measurement of dissolved oxygen inthe boiler feedwater, economizers, condensers and more generally all thermal equipment usingwater as a heat transfer liquid.

1.2 Principle of operation

The measurement of dissolved oxygen is based on the well-known Clark cell principle.

An oxygen-permeable membrane isolates the electrodes from the sample water, thus obviating theneed for sample conditioning. Other reducible or oxidizable ions do not interfere, because theycannot pass through the gas-permeable membrane.

A constant voltage supply powers two electrodes, maintaining each at a constant potential.

A gold working electrode (cathode) reduces the dissolved oxygen to hydroxyl ions:

O 2 + 2H 2O + 4e- 4OH -

A large silver counter electrode (anode) provides the oxidation reaction which occurs on itssurface:

4Ag + + 4Br - 4AgBr + 4e -

The reduction of oxygen is the current limiting reaction, thus making the cell current linearlyproportional to the dissolved oxygen concentration.

Electrochemical reactions and diffusion rates are temperature-sensitive. The measuring cell,therefore, is equipped with a temperature sensor which allows an automatic temperaturecompensation.


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1-2

Principle of oxygen cell

1

2

3

5

2

6

7

4

27

8

9

1 : Assembled electrode 6 : Membrane holder

2 : Electrolyte 7 : Membrane

3 : Probe body 8 : Cathode

4 : Filling hole 9 : Sample

5 : Anode


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1-3

1.3 Main characteristics

3 Range 0-2 ppm3 Calibration in the air

3 Temperature compensation

3 Programmable alarm levels, outputs on relays

3 4-20 mA, 0-20 mA analogue outputs (standard) and RS485 (option)

3 Wall- , panel- and tubing mounting

1.4 Technical characteristics

SAMPLE

Number of channels 1

Temperature 0-45 C (32-113 F)

Working pressure Atmospheric pressure

Flowrate 4...10 l/h

ELECTRICAL CHARACTERISTICS Mains Standard version :

100...240 VAC - 50/60 Hz

Low voltage version :13...30 VAC 50/60 Hz18...42 VDC

Power consumption 25 VA

Connections 2,5 mm screw terminal

Fuse 5 x 20 mm cartridge - T2AL - 250V


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1-4

ANALYSIS

Measuring range 0...2 ppmSensibility 0,5 ppb

Reproducibility 0,5 ppb or 2% whichever the greater

Detection limit 1 ppb

Response time (90 %) 3 min

Ambient temperature -20.. .60 C (-4...140 F)

Relative humidity 10...90%

TRANSMITTER

Display Display in concentration unitsDisplay of the direct, concentrationdependent cell current in ADisplay of the sample temperature in C/FProgramming via menus

Units nA, A, ppb-g/l, ppm-mg/l, C, F

Calibration Electrical zero, chemical zero, slope calibrationin the air, slope process calibration bycomparison with a laboratory measurement

Interferences Any gas liable to reduce to a potential> - 850 mV

Analogue outputs 2 x 0/4... 20 mA isolated from input signal, 800Ohms load maximum- for the measure or for the temperature- mode: linear, bi-linear- accuracy: 0,1 mA

Alarms Number: 4- Functions: alarm - system alarm - timer- Hysteresis: 0...10%- Delay: 0...999s

- Breaking power: 250 VAC, 3A maximum30 VDC, 0,5A maximum

Use a cable (rated 105 C and AWG22 to 14).The external cable insulation should be cut asclose as possible from the terminal block.


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1-5

Temperature compensation Automatic in the range of 0...45 C(32...113 F)

RS485 (option) Speed: 300...9600 baudInsulation: galvanicStation number: 32 maximum

Transmitter protection IP65 (NEMA 4X in option)

Measurement category I (overvoltage less than 1500 V)

Error reports Cell current > 999 ASample temperature > 45 C (113 F)or < 0 C (32 F)

Ambient temperature > 45 C or < 0 C(32...113 F) during air calibrationSlope calibration errorZero calibration error (offset)

ELECTROMAGNETIC COMPATIBILY

European standards EN 61326-1997 and EN 61326 A1-1998(Industrial level for immunity)

Low voltage standard IEC61010-1

UL and CSA agreement File E226594

MATERIALS

Working electrode Cathode: gold

Counter-electrode Anode: silver

Membrane holder Noryl

Membrane PFA

Transmitter Aluminium + polyester painting

Probe body Noryl

Probe with optional immersion Stainless steel 316L


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1-6

MAINTENANCE

Approximative membrane lifetime 6 months depending on the sample

Cleaning Clean the instrument with a soft tissue andwithout any aggressive agent

OPERATING CONDITIONS

Ambient temperature -20...+60 C

Relative humidity 10...90 %

Power supply voltage fluctuation 10 %

Over voltage category 2

Pollution degree 2 (as CEI 664)

Altitude < 2 000 m

Measurement category I (overvoltage less than 1500 V)

1.5 Dimensions(Dimensions are in mm and [in inches])

polymetron

polymetron


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2-1

Chapter 2: Description of the analyser

2.1 Analytical part

1

2

3

4

56

Figure 2-1: Electrode cross-section Figure 2 -2: Complete probe

1 : Connector 1 : Adjusting nut

2 : Anode holder 2 : Electrode

3 : Anode 3 : Probe body

4 : Cathode holder 4 : Membrane

5 : Cathode 5 : Filling screw

6 : Temperature sensor 6 : Gasket


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2-2

2.2 Hydraulic mounting

(Dimensions are in mm [inches])

1 : Cable 5 : Cell

2 : Shrink ring 6 : 1/4" NPT connector (not provided)

3 : Assembled probe 7 : M4 screws (not provided)

4 : Probe gasket 8 : 1/4" NPT connector (not provided)


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2-3

2.3 Transmitter

2.3.1 Presentation of the transmitter

Esc Enter

18.6 Cppb

2.10

Polymetron

O2Disp2 Menu

S1

S2 S4

S3

The electronic unit amplifies the signal of the amperometric measuring cell and converts it into adirect digital readout in ppm, mg/l, ppb, g/l, C and F. The transmitter comprises the following

items:n Potentiostat which maintains the working electrode potential constantn Amperometric measuring modulen Analog multiplexern Microprocessor unit

The analog multiplexer allows measurements to be acquired from the measuring cell, temperaturesensor and internal checkpoints. Further, the microprocessor operates the relays, the RS485interface (optional) and the analog outputs.

The unit has a built-in concentration-autoranging feature and a microprocessor-operatedcalibration routine.

The output of the potentiostat is monitored for possible overdriving of the potentiostat-output stage.This condition can occur with the connections to the measuring cell open, inoperable electrodes ora defective reference electrode.


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2-4

Transmitter synoptic below is:

1 : Programmable potentiostat 6 : Auxiliary input

2 : Polarization voltage amplifier 7 : Multiplexer

3 : Reversing switch for a 2 or 3 electrodeoperation. In the 9181 the configuration is2 electrodes

8 : A/D converter

4 : Temperature measurement circuit 9 : Microprocessor

5 : Measurement circuit current amplifier


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2-5

2.3.2 Application fields

Easy-to-use (installation, programming), this instrument is suitable for the following applications:

- boiler feedwater,- ultrapure water.

2.3.3 Standard mounting possibilities (use of the red clamping bow)

The transmitter housing conforms to norm DIN 43700.

Panel mounting

Panel cutting : 138 138 mmFront panel dimensions : 144 144 mm

2 screws 4 mm lg 16 flat head (provided) for panel thickness 0 to 4 mm 2 screws 4 mm lg 20 flat head (provided) for panel thickness 4 to 8 mm


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2-6

Wall mounting

2 screws 4 mm lg 60 flat head (not provided) / 80 mm center distance

Vertical pipe mounting 2" maximum - 2 screws - 4 mm lg 60

(provided)

Horizontal pipe mounting 2" maximum - 2 screws 4 mm lg 60(provided)

polymetron


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3-1

Chapter 3: Installation of the instrument

3.1 Unpacking

The analyzer should be unpacked with great care. Make sure not to loose any accessory whenunpacking.

3.2 Inspection

The analyzer has been factory-checked and tested prior to shipment, it is however advisable toinspect all parts immediately upon receipt for any damage which may have occurred duringshipment. A damaged shipping container may indicate internal damage which may not beimmediately obvious. If there is any evidence of damage, keep the shipping container and refer toyour local agent or to:

Hach Ultra Analytics6 route de Compois - CP212CH-1222 Vesenaz Geneva

3.3 Mounting

CAUTION!

Mounting should be done by qualified service personnel only. No power should beapplied until the installation is complete.

3.4 Location

The analyser should be located in an accessible site.

The site should permit the access for any checking or maintenance operation.

The sample flowrate has to be maintained within the specifications (See 1-4).


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3-2

3.5 Electrical connections

3 MONEC

Do not switch on the instrument until completion of the installation.

An aluminium armour plate inside the MONEC gives a detailed description of the different terminalsand their connections:

1. Microprocessor board2. Relay board3. Amperometric board4. Power supply board5. Program update connector

The different terminals represented on the right side are accessible by removing the armour plate.

1

2

3 45


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3-3

3.6 Description of the different terminals

Description Connection020 mA or 420 mA (n 1) [+] user

020 mA or 420 mA (n 1) [-] user

020 mA or 420 mA (n 2) [-] user

0/4...20 mA outputsgalvanically insulated

020 mA or 420 mA (n 2) [+] user

userOption RS485user

Description Colour ConnectionTemperature sensor [+] black temp +Temperature sensor [-] blue temp -

Reference if use of3 electrodes

not used on the 9182oxygen analyser

Counter electrode (anode) red counterWorking electrode (cathode) white work

Auxiliary input aux.

Amperometric module

External shield braid armour plate

Internal shield brown GND

Not used for the oxygen measurement n.c.

Mains, 100240 VAC 50/60 Hz or 24 V AC/DC (special version)

Description Connection Alarm 1, simple contact user Alarm 2, simple contact user Alarm 3 or alarm system, simple contact user

Alarm 4 or timer, simple contact user


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3-4

Electrical connections should remain dry to ensure a proper operation of theinstrument.

Check the creeping of the cables when opening the transmitter. It is required to use shielded cables. This shielding should be connected to theearth central shielding.

3.7 Mains connection

Electrical connection should be performed only by qualified personnel. The power supply accepts100-240 VAC 10 %, (50/60 Hz) without changes in configuration. The terminal block for powerconnections can be lifted from its header for easier installation. For safety reasons, it is required to

observe the precautions below:

Use a three wire mains supply cable (2 core + PE) with a cross section between 0.35 and 2 mm 2 (AWG 22 to 14) rated at 105 C minimum. The external cable insulation should be cut as closeas possible from the terminal block.

The instrument should be connected to the power supply by means of a breaker located closeto the instrument and be identified. The supply shall be fitted with an overcurrent protectiondevice rated at 20 Amp maximum.

This breaker should switch off phase and neutral in case of electrical problems or when the userwish to service the instrument. However the power supply earth must always be connected.

Before servicing the instrument, ensure that the power supply is switchedoff.

3.8 Starting the transmitter

Before switching on the transmitter, make sure the site voltage corresponds to the instrumentvoltage indicated on the identification plate.

3.9 Adjusting the display contrast

If your display contrast is not sufficient, you can adjust it with the potentiometer P1 (blue colour, seefigure page 3-2) which is located on the top left of the CPU board (after opening the enclosure).

!


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4-1

Chapter 4: Using the instrument

4.1 Front panel keys

The display may be programmed to indicate:

- Sample concentration- Sample temperature- Diffusion current- Programming codes- Programming arguments

Esc Enter

18.6 C

ppb 2.10

Polymetron

O2Disp2 Menu

S1

S2 S4

S3

Figure 4-1: Front panel

Suppress an action orgo back to previous step

Choice of the unit ornumeric value

Oxygenapplication

Validate and s witcho next step


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4-3

4.3 Description of the function keys

The function keys below have their signification highlighted at the bottom of the screen:

Modify a parameter

Select Scrolling in a list of menus

Main Go back to the main display

Menu Display the main menu

Disp2 Display screen 2



OK Validate the measure during the calibration

Yes Confirm a command

- Decrease a value

+ Increase a value

4.4 Icons

Symbol of waiting or instrument reset

Alarm system for relay S3

Timer symbol: countdown for relay S4

P


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5-1

Chapter 5: Programming the transmitter

5.1 Main menu

6.59ppb

23.2 C O2Disp2 Menu

S1

S2

S3

S4

CALIBRATIONMAINTENANCE

PROGRAMMINGSERVICE

MENU

Select

Choix

F

CONC. CALIB.TEMP. CALIB.PARAMETERS

CALIBRATION

Select

54.90 ppb

23.2 C8.05 A

MAINTENANCE

MEASUREALARMSmA OUTPUTS

RS485

PROGRAMMING

Select

AVERAGEDISPLAYCODE

SOFT ISSUEDEFAULT VAL.ADJUST mACONFIGURATIONPOLYMETRON

SERVICE

Select


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5-2

5.1.1 Calibration Menu

+ Any calibration should follow the procedure below:

Configuration of the calibration characterics in the "PROGRAMMING" menu. Realization of the calibration via the EXECUTION menu.

An access code may be required if it has been programmed (See 5.1.4.3CODE menu).See chapter 6 for a detailed programming of the calibrations.Some menus may appear or not according to how some parameters havebeen programmed.

PARAMETERS

DATE xx/xx/xx Date of the last calibration. The date programmed is notupdated automatically

P x.xxx A/ppm Slope value

T x.x C Drift between the theorical temperature (sensor response)Th and the measured temperature T m : T = T h - T m

Choix

F

TEMP. CALIB.PARAMETERS

CALIBRATION

Select

F

DATE : 01/01/98

P : 1.000 A/ppm

T : 0.0 C

PARAMETERS Choix

FSLOPE

CONC. CALIB.

Select

ZERO

CONC. CALIB.

Select

TEMP. CALIB.

EXECUTION

Enter

Enter

Enter

!


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5-3

5.1.2 MAINTENANCE Menu

Used for any maintenance operation in theinstrument.The transmitter continues to display thevariables measured.

The relay status is not modified.The analogue output value depends on theconfiguration defined in the mA OUTPUTS/SPECIAL PROG./MAINTENANCE menu.

5.1.3 PROGRAMMING Menu

An access code may be required (See 5.1.4.3 CODE menu)!

6.75 ppb

21.6 C5.559 A

MAINTENANCE

ALARMSmA OUTPUTSRS485

PROGRAMMING

Select

MEASURE


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5-4

5.1.3.1 MEASURE Menu

TEMPERATURE COMPENSATION

TYPE - Auto- Manual

Choice of a temperature measurement with automaticcompensation or with a manual compensation

I f you have chosen a manu al temperature comp ensat ion, the TEMP.CA LI B . M enu i s no t acces s ib le anymor e

TEMP. - xx.x C Possibility to enter the sample temperature in a manualcompensation mode

SENSOR NTC/AD590 Type of temperature sensor used on the 9182 Oxygenanalyser. You have to program the NTC

Choix

MEASURE

Select

Choix

F

SENSOR : NTC

TYPE : Manual

TEMP. : 25.02 C

TEMP. COMP.

Select

TEMP. COMP.

Enter

!


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5-6

SYSTEM ALARM FUNCTION:

The relay S3 may be used to indicate a faulty functioning of the analyser.

It is required to connect the relay S3 to an external alarm system to control the faults traced by theanalyser.

The relay S3 is activated as soon as a default appears.

In case of a manual acknowledgment, the relay remains activated even if the default disappears. Itis required to press ENTER to desactivate the relay and the error message.

In case of an automatic acknowledgment, the relay and the error message are desactivated whenthe default disappears.

ALARM 3 (ALARM SYSTEM)

MODE - No- Limit- Syst.

The alarm S3 may be programmed as alimit function (see paragraph above) oras an alarm system function

ACCEPT - Auto- Manu

In the case of an alarm system, choicebetween a manual (key ENTER) or anautomatic acknowledgment

RELAY - NO- NC

Choice of S3 normally open or normallyclosed

MODE :

ACCEPT. : Auto

RELAY : NC

ALARM 3

Select

Syst.


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5-7

TIMER FUNCTION:

Relay S4 may be affected to a timer function.

ALARM 4 (TIMER)

MODE - No- Limit- Timer

Choice between a limit (seeparameters above) or a timer functionfor alarm 4

INTERV XXXXmn Interval between 2 cycles (in minutes)

IMPUL. X Number of pulses during an activecycle

Ton XXXs Adjustment of the relay active time (inseconds) for each pulse

Toff XXXs Adjustment of the relay inactive time(in seconds) for each pulse

TmA XXmn Hold time for the analogue outputsafter each cycle T h e a n a l o g u e o u t p u t s t a t u s d e p e n d s o n t h e

c o n f i g u r a t i o n o f t h e m e n u m A O U T P UT S /S P E CI A LPROG./TIMER

Example of a timer operating cycle:

Relay S4Pulse number

Closed

Open

Ton Toff TmA

Interval

Time

MODE :

Interv : 1440 mn

IMPUL. : 5

Ton : 005 s

Toff : 003 s

TmA : 05 mn

ALARM 4

Select

Timer


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5-8

5.1.3.3 mA OUTPUTS menu

The analogue output signals allow the transmission of the measurements from the analyser to anyexternal control system.

It is highly recommended to use shielded cables for the output signals. This shielding should beconnected to the earth terminal on the armour plate.

OUTPUT 2SPECIAL PROG.TEST

mA OUTPUTS

Select

OUTPUT 1

CALIBRATION

SYST. ALARM.

TIMER

SPECIAL PROG.

Select

MAINTENANCE AFFECT. :TYPE : 4-20MODE : Lin

LOW : 00001 nAUP : 100.0 A

OUTPUTS 1/2

Select

Choix

F

MODE :

VALUE : 00 mA

SPECIAL PROG.

Select

Preset

F

VALUE : mA

TEST

00

Enter

Enter

Enter

Enter

A


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5-9


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5-10

OUTPUTS 1/2

AFFECT - Conc- A- C/F

Choice of the analogue output allocation to the cell current, tothe concentration or to the temperature measurement

TYPE 0/204/20

Choice of the analogue output type

MODE - Lin- Dual

Choice between a linear or dual range (see drawing below)

LOWER XXXX Bottom of the scale value

MIDD. XXXX Mid-scale value (only in dual mod e )

UPPER XXXX Top of the scale value

SPECIAL PROG.

MODE - last- preset- live

Characteristics of the analogue output during calibration, alarmsystem, maintenance or timer active cycles: frozen to the lateststored before any operation listed above, forced to a presetvalue, live measurement

VALUE XX Preset value (0 to 21 mA)

TEST Test the analogue outputs by steps of 1 mA (0...21 mA)

Illustration of the linear/dual outputs scales:

(%)

Upper 20 20

16 15

Middle 12 10

8 5

Lower 4 0

0 10 20 30 40 50 60 70 80 90 100

(mA)

Dual

Linear


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5-11

5.1.3.4 RS485 Menu

If the RS485 optional board is installed in your transmitter, program the parameters of the menubelow.The RS485 optional board enables the connection between your analyser and a digitalcommunication system. The Communication protocol is JBUS/MODBUS. Refer to the instructionmanual JBUS/MODBUS communication (part number: 621=991=000) for further details and to the

Appendix 7 for the address list.

RS485

N XX MONEC number (0.. .32)

BAUD - 300- 600- 1200- 2400- 4800- 9600

Transmission speed in baud

PARITY - No- Odd- Even

Without parity bitWith odd parity bitWith even parity bit

BIT STOP - 1- 2

1 bit stop2 bit stop

N :

BAUD : 9600

PARITY : NoSTOP BIT : 1

RS485

Select

00


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5-12

5.1.4 SERVICE Menu

An access code may be required if it has been programmed (see 5.1.4.3CODE Menu).

5.1.4.1 AVERAGE Menu

The measurement cycle lasts 4 seconds.

AVERAGE Program a moving average on the concentration measurement

AVERAGE X Define the number of measurements to calculate the average

TEST Display the difference between a measurement obtained with andwithout average

!

AVERAGEDISPLAYCODESOFT ISSUE

DEFAULT VAL.ADJUST mACONFIGURATIONPOLYMETRON

SERVICE

Select

AVERAGE :TEST

AVERAGE

Select

9 Average3.46 ppb

Real3.49 ppb

TEST

Enter


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5-13

5.1.4.2 DISPLAY Menu

DISPLAY

CONC - ppb/ppm- g-mg/l

Choice of the concentration unit

TEMP. - C- F

Choice of the temperature unit

PRESSURE - mmHg- mbar- InHg

Choice of the atmospheric pressure unit

LANGUAGE

- F- GB- D- SP- I

Choice of the language:

- french- english- german- spanish- italian

CONC :

TEMP. : C

PRESSURE : mmHg

LANGUAGE : F

DISPLAY

Select

ppb/ppm


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5-14

5.1.4.3 CODE Menu

Protection codes may be programmed to access to the PROGRAMMING, CALIBRATION, SERVICEmenus.

This code may be desactivated by programming 0000.

CODE

CALIB. XXXX Access code to the calibrations

PROG. XXXX Access code to the PROGRAMMING menu

SERVICE XXXX Access code to the SERVICE menu

If you forget your access code, press simultaneously ESC and ENTER to enter into themenu selected.

CALIB. :

PROG. : 0000

SERVICE : 0000

CODE

Select

0000


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5-15

5.1.4.4 SOFT VERSION Menu

This menu displays the software version installed in the instrument.

5.1.4.5 DEFAULT VAL. Menu

If you press YES, you load the defaultvalues and you loose the currentprogrammed values and calibrationparameters

MONEC 9182

OXY 1.00

SOFT ISSUE

!Loadingdefault

values?

DEFAULT VAL

Yes

!


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5-17

5.1.4.7 CONFIGURATION Menu

You have to program the operating frequency so it matches with the mains supply characteristics.When the frequency is changed, the instrument is automatically resetted.

5.1.4.8 POLYMETRON Menu

This menu is reserved to Hach Ultra Analytics qualifiedpersonnel.

CODE :

POLYMETRON

0000

FREQ :

CONFIGURATION

60 Hz

Select

FREQ :

CONFIGURATION

50 Hz

Disp2

Please

wait...

Disp2 Menu

Start up ...

Disp2 Menu

Enter


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Oxygen analyser (ppb) - 9182 -

6-1

Chapter 6: Calibrating the instrument

NOTESee chapter 5 for programming the commands.

REMARK

Any result (calibration or measurement) is always brought back to the reference temperature(25C, 77F). If the sample temperature is different from the reference temperature, it is requiredto execute a temperature compensation which can be either manual or automatic.

6.1 Calibration of the temperature sensor

The temperature sensor is located in the dissolved oxygen measurement probe. It is factory-preadjusted but needs to be calibrated in the sample on site. This calibration must be realisedbefore the oxygen measurement calibration (slope + zero).


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6-2

6.1.1 Automatic temperature compensation

The sensor measures continuously the sample temperature. The concentration values areautomatically calculated according to the reference temperature (25 C) by a preprogrammedcompensation law in the transmitter.

Follow the procedure below:

PROGRAMMING

Choice of an automatic temperaturecompensation.

EXECUTION

The execution is realised with theCALIBRATION menu.

Enter the sample temperature value in C.Press OK to adjust the temperature displayedto the actual value of the sample temperaturemeasured with a precise thermometer.

The gap between the calibration and thetheorical response curve of the sensor is givenfor information.

MEASURE

Select

TEMP. COMP.

TYPE :

SENSOR : NTC

TEMP : 25.0C

TEMP. COMP.

Select

Enter

Auto.

TEMP. CALIB.

Select

EXECUTION

21.2C

6.87 ppmOK

CAL

21.2C

1.2 CCAL

2

T : 0.0 C

ENTER : ok

ESC : cancel

TEMP. CALIB.

Enter

Enter

Press OK when themeasure is stable

Possibility to changethe value


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6-3

6.1.2 Manual temperature compensation

This type of temperature compensation should be used only if your sample temperature isconstant.

PROGRAMMING

Choice of a manual temperature compensation.

Enter your sample temperature.

EXECUTION

Not applicable when a manual temperaturecompensation is chosen.

MEASURE

Select

TEMP. COMP.

TYPE :

SENSOR : NTC

TEMP. COMP.

Select

Enter

TYPE :

TEMP. : 25.0 C

SENSOR : NTC

TEMP. COMP.

Select

Enter

Manual

Manual


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6-4

6.2 Calibration of the measurement

The slope calibration can be done in the air or in water, with electrical zero or chemical zero.

6.2.1 Slope calibration in the air + electrical zero

PROGRAMMING

ZERO: Choice of an electrical zero. The electricalzero is carried out automatically by thetransmitter at a regular frequency. Choice ofthe slope in the air.

SLOPE: Enter the atmospheric pressure in mmHg.Enter the ambient temperature in C.

EXECUTION

SLOPE: Humidify the wadding of the calibration cap andtake off the probe from the sample. Position thecap on the electrode and press ENTER.The probe should be positioned vertically withthe membrane downwards (see page 7.1).

The flashing "cal" message indicates that theinstrument is in calibration mode. Wait for thecurrent stabilisation (approximately 10 min.)and press OK to validate the calibration. Theoxygen concentration value flashes during3 seconds.

The analyser displays the date of the lastcalibration and the new slope calculated.Modify the date if you wish. Put back theelectrode in water.

TYPE :

P = 760.0 mmHg

Tamb = 20 C

SLOPE CALIB.

Select

AIR

Enter

SLOPE

CONC. CALIB.

Select

ZERO

ZERO CALIB.

TYPE :

ZERO CALIB.

Select

EXECUTION

SLOPE CALIB.

EnterEnter

AutoElec.

PROGRAMMING

Select Select

PROGRAMMING

Enter

PROGRAMMING

SLOPE CALIB.

Select

EXECUTION

DATE :P : 1 nA/ppm

SLOPE CALIB.

Enter

01/01/98

Possibility to enter thedate of the calibration

21.2ppm

25.0 C5.693 A OK

CAL


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6-5

6.2.2 Slope calibration in the air + chemical zero

PROGRAMMING

ZERO: Choice of the chemical zero.Choice of the slope in the air.

SLOPE: Enter the atmospheric pressure in mmHg.Enter the value of the ambient temperature.

EXECUTION

ZERO: Make sure the water used for the chemicalzero is really oxygen-free (< 1 ppb).Press ENTER, the "CAL" message flashesand indicates the instrument is in calibratingmode.Wait for the current stabilisation(approximately 10 min.) and press OK tovalidate the calibration. The oxygenconcentration value flashes during 3 seconds.The instrument displays zero.

SLOPE: Humidify the wadding of the calibration cap andtake off the probe from the sample. Position thecap on the electrode and press ENTER.The probe should be positioned vertically withthe membrane downwards (see page 7.1).The flashing "cal" message indicates that theinstrument is in calibration mode. Wait for thecurrent stabilisation (approximately 10 min.)and press OK to validate the calibration. Theoxygen concentration value flashes during3 seconds.The analyser displays the date of the lastcalibration and the new slope calculated.Modify the date if you wish. Put back the

electrode in water.

PROGRAMMING

ZERO CALIB.

Select

EXECUTION

Enter

21.2ppm

25.0 C5.693 A

OK

CAL

0ppm

25.0 C5.693 A

OK

CAL

TYPE :

P = 760.0 mmHgTamb = 20 C

SLOPE CALIB.

Select

AIR

Enter

SLOPE

CONC. CALIB.

Select

ZERO

ZERO CALIB.

TYPE :

ZERO CALIB.

Select

EXECUTION

SLOPE CALIB.

EnterEnter

Chem.

PROGRAMMING

Select Select

PROGRAMMING

Enter

PROGRAMMING

SLOPE CALIB.

Select

EXECUTION

DATE :P : 1 nA/ppm

SLOPE CALIB.

Enter

01/01/98

Possibility to enter thedate of the calibration

21.2ppm

25.0 C5.693 A OK

CAL


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6-6

6.2.3 Slope process calibration + electric zero

PROGRAMMING

ZERO: Choice of the electrical zero. The electricalzero is carried out automatically by thetransmitter at a regular frequency.Choice of a process slope.

EXECUTION

SLOPE: The "CAL" message flashes and indicates theinstrument is in calibrating mode. Wait for thecurrent stabilisation and press OK.You have the possibility to adjust theconcentration value digit by digit with thefunction key to the value obtainedwith your reference analysis method.

The analyser displays the date of the lastcalibration and the new slope calculated.Modify the date if you wish.

PROGRAMMING

SLOPE CALIB.

Select

EXECUTION

DATE :P : 1 nA/ppm

SLOPE CALIB.

Enter

01/01/98

Possibility to enter thecalibration date

21.2ppm

25.0 C5.693 A OK

CAL

TYPE :

SLOPE CALIB.

Select

PROCESS

Enter

SLOPE

CONC. CALIB.

Select

ZERO

ZERO CALIB.

TYPE :

ZERO CALIB.

Select

EXECUTION

SLOPE CALIB.

Enter

Enter

AutoElec.

PROGRAMMING

Select Select

PROGRAMMING

Enter


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6-7

6.2.4 Slope process calibration + chemical zero

PROGRAMMING

ZERO: Choice of the chemical zeroChoice of the slope process

EXECUTION

ZERO: Make sure the water used for the chemicalzero is really oxygen-free (< 1 ppb).Press ENTER, the "CAL" message flashesand indicates the instrument is in calibratingmode.Wait for the current stabilisation(approximately 10 min.) and press OK tovalidate the calibration. The oxygenconcentration value flashes during 3 seconds.The instrument displays zero.

SLOPE: The flashing "cal" message indicates that the

instrument is in calibration mode. Wait for thecurrent stabilisation (approximately 10 min.)and press OK to validate the calibration. Theoxygen concentration value flashes during 3seconds.The analyser displays the date of the lastcalibration and the new slope calculated. Modifythe date if you wish.

PROGRAMMING

ZERO CALIB.

Select

EXECUTION

Enter

21.2ppm25.0 C5.693 A

OK

CAL

0ppm

25.0 C5.693 A

OK

CAL

PROGRAMMING

SLOPE CALIB.

Select

EXECUTION

DATE :P : 1 nA/ppm

SLOPE CALIB.

Enter

01/01/98

Possibility to enter thecalibration date

21.2ppm

25.0 C5.693 A OK

CAL

TYPE :

SLOPE CALIB.

Select

PROCESS

Enter

SLOPE

CONC. CALIB.

Select

ZERO

ZERO CALIB.

TYPE :

ZERO CALIB.

Select

EXECUTION

SLOPE CALIB.

EnterEnter

Chem.

PROGRAMMING

Select Select

PROGRAMMING

Enter


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7-1

Chapter 7: Start up, maintenance and troubleshooting

7.1 Start up

7.1.1 Assembling the probe

The probe is composed of the following items:

1 : Nut

2 : Measuring electrode

3 : Probe body

4 : Membrane

5 : Filling screw

6 : Gasket


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7-2

Proceed as follows for the assembling:

A. Screw the membrane on the body till the dead stop .

B. Fill in the probe body with 5 ml of electrolyte by means of the syringe.

Check there is no impurity or bubble in the electrolyte .

C. Insert the electrode in the probe body until you meet a resistance. Do not force.

D. Complete the mounting by tightening the nut.

E. Mount the filling screw and its gasket. Tight it sufficiently to avoid any leaking of electrolyte orexternal pollution from sample.


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7-4

7.2 Changing the membrane

Never take off the electrode before removing the electrolyte filling plug.

Never touch the membrane with the hands.

Never use a worn membrane.

Turn off the water supply. Remove theconnector from the probe.

Unscrew the cell cap and remove theprobe.


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7-5

7.2.1 Dismounting the membrane

A. Unscrew cap and gasket.

B. Unscrew nut.

C. Remove electrode without scratching the cathode.

D. Empty the electrolyte left in the probe.

E. Unscrew the worn membrane.


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7-6

7.2.2 Mounting the new membrane

F. Screw the new membrane on the body till the dead stop.

G. Replenish the probe body with 5 ml of electrolyte. Check there is no impurity or bubble in theelectrolyte.

H. Preposition the electrode without forcing. It should take its place by simple gravity.

I. Screw the probe nut till the electrode meets a resistance.

J. Put back the cap and gasket, screw the cap to ensure watertightness.


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7-9

e) Cable or connections damaged when the probe has been replaced! Check the connection to the transmitter. If the connection is correct check the

connections of the probe connector (See appendix 4 for the connectorconnections).

f) The membrane is worn! Change the membrane.

g) There is a AgBr (dark green) deposit on the silver! Polish the silver tube with soft abrasive (N 400 to 600)

Problem: Imp ortan t ins tab i li ty in measuring mod e

Causes and solutions:

a) There is humidity or water in the probe connector! Dry the connector and check it is correctly screwed.

b) Incorrect connexion! Check the connections of the transmitter to the probe.

c) There are bubbles close to the cathod! Replenish the electroly te holder and check there is no bubble between the cathod

and the membrane.

d) The probe is violently shaked! Check the fixation and the stability.

e) Important electromagnetic interferences close to the probe or transmitter cable! Find a better place for the cable and check the EMC level.

f) Temporary interference with other gas! Mainly with H 2S

g) Flowrate too weak (50 ml/h minimum)! Change the probe location

h) Mud from an heterogen sample damages the membrane! Install a deflector or change the probe location

Pro b l em: Lack o f accu racy

Causes and solutions:

a) The membrane permeability has changed (dirt deposit)! Calibrate the analyser and check if the concentration is back to normal.


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7-10

b) Pollution of the electrolyte! Check the parts to screw (membrane, filling screw) and change the electrolyte.

c) Leak of electrolyte! Check the parts to screw (membrane, filling screw) and change the electrolyte.

d) Interferences, mainly with H 2S! If the level of H 2S (or other pollutant) is stable, take into account its concentration

to determine the O 2 concentation.

e) Error during calibration or incorrect calibration! Calibrate again to check the parameters. If the error is confirmed, check the

calibration current (too high, too low or unstable) and the concentration in the air.Refer to the problems described above.

f) The temperature calibration has not been done! Check the temperature given by the transmitter and calibrate it (see page 6-2). If

you have chosen the manual compensation check the value is correct.

g) There are bubbles close to the cathod! Replenish the electrolyte holder and check there is no bubble at the bottom.

h) Flowrate too low (4 l/h minimum)! Increase the flowrate.

i) The sample temperature or pressure is out of the specifications! Change the probe location or modify the sample so that it meets the specifications.

j) Mud or particles on the golden cathod! Clean the golden cathod with an absorbant tissue and rinse the membrane.

k) The electrolyse potential is not equal to -0.85 V! Enter the correct value.

Ot h e r p ro b l ems

a) The probe current is null

! There is no electrolyte in the probe (leak).

b) The probe current is negative! Connexion problem to the anode circuit (loose contact). ! AgBr deposit on the anode

c) The sample temperature corresponds to the specifications but there is an error on thetemperature! There may be a short-circuit on the temperature connection.


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7-11

7.5 Electrical troubleshooting

WARNING!

Never attempt servicing before disconnecting the instrument from the main powerline

MALFUNCTION POSSIBLE CAUSE REMEDIES

No power; instrument is notconnected correctly

Check for power, then check ifconnected properly

Defective fuse Check fuse

Instrument's power supply setfor wrong line voltage

Check jumpers on power-supply board for correctvoltage settings

Ribbon cable connectingpower with CPU board notproperly plugged in

Check that the ribbon plugsare properly plugged in

Connection between CPUboard and measurementmodule loose

Check plug connections

Short circuit in power-supplyboard

Visually check power-supplyboard for shorts

No indication

Hardware is defective Call the Service Technician

LCD displays undefinedcharacters

Malfunctioning CPU board orprocessor

Using the Instruction manual,program the instrument to loadthe default values

CPU hardware RESET the instrument bytemporarily interrupting thepower (5-10 secs.)

Call the Service Technician

Keyboard does notoperate; all keys areinactive

CPU malfunctioning, externalinterferences

If there is no response, RESETthe instrument by temporarilyinterrupting the power (5-10seconds) Check each keyagain. If there is no change,call the Service Technician


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7-12


Measurement is notcorrect

Instrument was programmedincorrectly

Recheck programmedparameters. Do they agree withthe probe's characteristics?

System, including probe, notcalibrated correctly

Calibrate the whole system(probe connected)

Probe connected wrong Recheck all probe connections

Probe malfunctioning,possibly incompatible with theapplication

Visually check the condition ofthe probe. Is the applicationwithin the probe'sspecifications (data sheet)?

CPU board is defective If error persists, call the

Service TechnicianMeasurement is notstable

Faulty probe Check the condition of theprobe. Is it contaminated?

Probe connected wrong Is the probe connectedcorrectly?

Interferences Are there any sources ofpotential interference,chemical, external,temperature, pressure, ...?

Cable shield is not connected Check and connect

Defective CPU board If problem persists, call theService Technician

Probe connected wrong Is the probe properlyconnected? Check

Temperaturemeasurement is notcorrect

Temperature was notcalibrated

Calibrate for temperature. Alsocheck the Pt100 for correctresistance (ohmmeter)

CPU board is defective If problem persists, call theService Technician


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7-13


Check to make sure that probeis connected correctlyInitiate a software RESET

If steps 1-3 do not remedy theproblem, make a cold start(RESET): interrupt the powerfor 5-10 secs

Reprogram the instrumentagain

Display reading static;cannot be changed inany way

Malfunctioning CPU boardand/or some other transmitterhardware is defective

If problem persists, call theService Technician

Relays not energised Instrument was programmedincorrectly

Check whether the correctrelay parameters and setpointshave been programmed

Hardware is defective Check that the programmedsetpoints are compatible withthe programmed measuringrange

Check the relay characteristicsfor proper functioning using anohmmeter

If problem persists, contact theService Technician

Instrument was incorrectlyprogrammed

Check the programmed output-current parameters

Connection of the Monec withperipherals (recorder, etc.)are faulty, loose or defective

Check the cables

Compare the measured valuewith the output current range

Wrong output current,output current remains at0 or 20 mA

Hardware is defective

If problem persists, call the

Service TechnicianWrong configuration(3 electrode mode)

Check the swiches under theamperometric board arecorrectly positioned ("on")

Polarization voltageincorrect

Wrong programming


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8-1

Chapter 8: Error messages

In case of errors, measurements are replaced by dashes " - - -" .

Error messages Description

Error messages during a measurement

CONCENTRATIONTOO HIGH

The concentration value is out of the limits. Check thecurrent value and the calibration parameters.

STAND-BY1.99 ppb

Electrode protection In case of measuring range exceeding "concentrationtoo hugh" over 2 minutes, the error message "STAND-BY" appears. From this moment on, the electrodepolarization voltage is switched off during 10 minutes.

After these 10 minutes, the voltage is switched on.In STAND-BY the user m ay swi tch on the vo l tage atany t ime by p ressing ENTER.

CONCENTRATIONTOO LOW

The concentration value is out of the limits. Check thecurrent value and the calibration parameters.

TEMPERATUREERROR

The sample temperature is out of the limits. Check thecable polarity. Check if there is any short-circuit or opencircuit.


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8-2

CURRENTTOO LOW

The current value is out of the limits. Check theelectrode (electrolyte and membrane).

CURRENTTOO HIGH

The current value is out of the limits. Check there is noshort-circuit on the measuring line.Check the polarization voltage.

Error messages during a calibration

TOUT OF LIMITS

21.6C

The temperature difference between the calibration andthe sensor theorical response is superior to theprogrammed limit.Limits: 20 C


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A2-1

Appendix 1: Pressure conversion table

hPa or mbars mm Hg mm H 2O psi inches Hg inches H 2O

920.00 690 9503.60 13.34 27.16 374.16

925.00 693.8 9555.25 13.42 27.31 376.19

930.00 697.5 9606.90 13.49 27.46 378.22

935.00 701.3 9658.55 13.56 27.61 380.26

940.00 705 9710.20 13.63 27.76 382.29

945.00 708.8 9761.85 13.71 27.90 384.32

950.00 712.5 9813.50 13.78 28.05 386.36

955.00 716.3 9865.15 13.85 28.20 388.39

960.00 720 9916.80 13.92 28.35 390.43

965.00 723.8 9968.45 14.00 28.50 392.46

970.00 727.5 10020.10 14.07 28.64 394.49

975.00 731.3 10071.75 11.14 28.79 396.53

980.00 735 10123.40 14.21 28.93 398.56

985.00 738.8 10175.05 14.29 29.08 400.59

990.00 742.5 10226.70 14.36 29.23 402.63

995.00 746.3 10278.35 14.43 29.38 404.66

1000.00 750 10330.00 14.50 29.53 406.69

1005.00 753.8 10381.65 14.58 29.68 408.73

1010.00 757.5 10433.30 14.65 29.82 410.76

1015.00 761.3 10484.95 14.72 29.97 412.79

1020.00 765 10536.60 14.79 30.12 414.83

1025.00 768.8 10588.25 14.87 30.27 416.86

1030.00 772.5 10639.90 14.94 30.42 418.89


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A2-1

Appendix 2: Temperature conversion table

3 Conversion from C into F: F = 1,8 C + 323 Conversion from C into K: K = C + 273,15

C F K C F K

0 32 273,15 24 75,2 297,15

1 33,8 274,15 25 77 298,15

2 35,6 275,15 26 78,8 299,15

3 37,4 276,15 27 80,6 300,15

4 39,2 277,15 28 82,4 301,15

5 41 278,15 29 84,2 302,15

6 42,8 279,15 30 86 303,15

7 44,6 280,15 31 87,8 304,15

8 46,4 281,15 32 89,6 305,15

9 48,2 282,15 33 91,4 306,15

10 50 283,15 34 93,2 307,1511 51,8 284,15 35 95 308,15

12 53,6 285,15 36 96,8 309,15

13 55,4 286,15 37 98,6 310,15

14 57,2 287,15 38 100,4 311,15

15 59 288,15 39 102,2 312,15

16 60,8 289,15 40 104 313,15

17 62,6 290,15 41 105,8 314,15

18 64,4 291,15 42 107,6 315,1519 66,2 292,15 43 109,4 316,15

20 68 293,15 44 111,2 317,15

21 69,8 294,15 45 113 318,15

22 71,6 295,15

23 73,4 296,15


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A3-1

Appendix 3: Default values

CALIBRATION

CONC. CALIB.OFFSETType : AutoElecSLOPEType : AirP : 760 mmHgTamb. : 20.0 C

PARAMETERSDATE : 01/01/98S : 1.000 A/ppmT : 0.0 C

PROGRAMMING

MEASURE

TEMP. COMP.TYPE : AutoSENSOR : NTC

ALARMS

ALARMS S1/S2/S4 AFFECT. : Conc.LIM. : 0.00 ppbDIR. : Low

DELAY : 000 sHYST. : 00%RELAY : NO

ALARM S3 AFFECT. : System ACQUIT : AutoRELAY : NC

m A OUTPUTS

OUTPUT 1 AFFECT. : Conc.TYPE : 4-20MODE : Lin.LOW : 0.000 ppmUP : 1.000 ppm

OUTPUT 2 AFFECT. : Conc.TYPE : 4-20MODE : Lin.LOW : 0.000 ppmUP : 1.000 ppm


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A3-2

SPECIAL PROG.

MAINTENANCEMODE : Last

TIMERMODE : Last

CALIBRATIONMODE : Last

ALARM SYSTEMMODE : Last

RS485

N : 0BAUD : 9600PARITY : NoSTOP BIT : 1

SERVICE

AVERAGE

AVERAGE : 1

DISPLAY

DISPLAYCONC. : ppb/ppmTEMP. : CPRESSURE : mmHgLANGUAGE : GB

CODE

CODECALIB. : 0000PROG. : 0000SERVICE : 0000

CONFIGURATION

CONFIGURATIONFREQ. : 50 Hz


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A5-2

FIRST AID MEASURES

In case of contact, immediately flush eyes or skin with copious amount s of water for at least 15 minuteswhile removing contaminated clothing and shoes. Assure adequate flushing of the eyes by separating theeyelids with fingers. If inhaled, remove to fresh air. If not breathing give artificial respiration. If breathing isdifficult give oxygen. If swallowed, wash out mouth with water provided person is conscious. Call aphysician immediately. Discard contaminated clothing and shoes.

FIRE FIGHTING MEASURES

Non combustible. Use extinguishing media appropriate to surrounding fire conditions. Do not use water.Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.Reacts violently with water. Emits toxic fumes under fire conditions.

ACCIDENTAL RELEASE MEASURES

Evacuate area. Wear self-contained breathing apparatus, rubber boots and heavy rubber gloves. Sweepup, place in a bag and hold for waste disposal. Avoid raising dust. Ventilate area and wash spill site aftermaterial pickup is complete.

HANDLING AND STORAGE

Danger: under fire conditions material will melt and flow. Molten material reacts violently with water andcan react with aluminium, tin, zinc and their alloys to generate flammable and explosive hydrogen gas.Potassium hydroxide reacts with trichloroethylene to form s pontaneously flammable dichloroacetylene.

EXPOSURE CONTROLS/PERSONAL PROTECTION

Wear appropriate NIOSH/MSHA-approved respirator, chemical-resistant gloves, safety goggles, otherprotective clothing. Safety shower and eye bath. Use only in a chemical fume hood. Faceshield (8-inchminimum). Do not breathe dust. Do not get in eyes, on skin, on clothing. Avoid prolonged or repeatedexposure. Wash thoroughly after handling. Corrosive. Toxic. Keep tightly closed. Do not allow contactwith water. Store in a cool dry place.

TOXICOLOGICAL INFORMATION

Acute effects: harmful if swallowed, inhaled or absorbed through skin. Material is extremely destructive totissue of the mucous membranes and upper respiratory tract, eyes and skin. Inhalation may be fatal as aresult of spasm, inflammation and edema of the larynx and bronchi, chemical pneumonitis and pulmonary

edema. Symptoms of exposure may include burning sensation, coughing, wheezing, laryngitis, shortnessof breath, headache, nausea and vomiting.

DISPOSAL CONSIDERATIONS

Contact a licensed professional waste disposal service to dispose of this material.

The above information is believed to be correct but does not purport to be all inclusive and shall be used onlyas a guide.


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A5-3

Potassium bromide

PHYSICAL AND CHEMICAL PROPERTIES

White crystals

Melting point 770 C

Specific gravity 1.984

LABEL PRECAUTIONARY STATEMENTS

Harmful. Harmful by inhalation, in contact with skin and if swallowed. Irritating to eyes, respiratorysystem and skin. In case of contact with eyes, rinse immediately with plenty of water and seek medicaladvice. Wear suitable protective clothing.

STABILITY AND REACTIVITY

Incompatibilities Strong oxidizing agentsStrong acidsHazardous combustion or decompositionproducts: hydrogen chloride gas.

FIRST AID MEASURES

In case of contact, immediately flush eyes with copious amounts of water for at least 15 minutes. In caseof contact, immediately wash skin with soap and copious amounts of water. If inhaled, remove to freshair. If not breathing give artificial respiration. If breathing is difficult, give oxygen. If swallowed, wash outmouth with water provided person is conscious. Call a physician. Wash contaminated clothing beforereuse.

FIRE FIGHTING MEASURES

Extinguishing media Water spray.

Special firefighting procedures Wear self-contained breathing apparatus andprotective clothing to unusual fire and explosionshazards.

Unusual fire and explosions hazards Emits toxic fumes under fire conditions.

ACCIDENTAL RELEASE MEASURES

Wear self-contained breathing apparatus, rubber boots and heavy rubber gloves. Sweep up, place in abag and hold for waste disposal. Avoid raising dust. Ventilate area and wash spill site after materialpickup is complete.


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A5-4

PROCEDURES FOR CHECKING WORKER EXPOSURE

Chemical safety goggles, rubber gloves, respirator mask approved by NIOSH/MSHA, safety showers andeye fountains, mechanical exhaust required. Avoid any contact and inhalation. Avoid any contact with theeyes, the skin and clothing.

Wash well after handling. Noxious irritant solid. Keep the recipient tightly closed. Water absorbent. Storein a cool dry place.

TOXICOLOGICAL INFORMATION

Acute effects: harmful if swallowed, inhaled or absorbed through skin. Causes eye and skin irritation.Material is irritating to mucous membranes and upper respiratory tract. To the best of our knowledge, thechemical, physical, and toxicological properties have not been thoroughly investigated. Ingestion of large

quantities can cause weakness, gastrointestinal irritation and circulatory disturbances.

DISPOSAL CONSIDERATIONS

For small quantities: cautiously add to a large stirred excess of water. Adjust the pH to neutral, separateany insoluble solids or liquids and package them for hazardous-waste disposal. Flush the aqueoussolution down the drain with plenty of water. The hydrolysis and neutralization reactions may generateheat and fumes which can be controlled by the rate of addition. Observe all federal, state and localenvironmental regulations.

The above information is believed to be correct but does not purport to be all inclusive and shall be used onlyas a guide.


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A6-1

Appendix 6: Spare parts list

Any other spare parts except those below in the table should be replaced in theinstrument.

Description Part number

RS485 board + manual 09125=A=2485

Box of 4 pre-mounted membranes for 9182 and 9185 sensors 09185=A=3500

Reference electrolyte 100 ml 363144,00100

Oxygen electrode without probe body ppb 09182=A=1000

Calibration cap 09182=A=1200

Eprom for 9180 Oxygen 09180=A=6201

Connection cable 10 m 09078=A=3010

Probe body oxygen ppb 09078=C=1010

Electrolyte filling screw 09078=C=1020

Electrolyte filling washer 09078=C=1030

Stainless steel flow cell 09078=A=2000

Syringe 460150,21951

CPU board 09125=A=1001

Power supply 09125=A=2000

Analog PC board for 9180 09180=A=1500

Display board 09125=A=1010

Monec D 9180 (standard) with software 09180=A=0300

Monec D 9180 (RS485) with software 09180=A=0311

9182 Instruction manual in English 621=191=082

9182 Instruction manual in French 621=091=082

9182 Instruction manual in German 621=291=082

9182 Instruction manual in Italian 621=491=082

9182 Instruction manual in Spanish 621=591=082


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A7-1

Appendix 7: RS485 MODBUS-JBUS addressing

CALIBRATION menu

/CONC. CALIB. /ZERO

/PROGRAMMING /Type

/EXECUTION /SLOPE

/PROGRAMMING /Type /P

/Tamb /EXECUTION /TEMP. CALIB. /EXECUTION /PARAMETERS

(0: ElecAuto, 1:Chemical)

(0:Process, 1:Air)

0121

02210222

0223

MEASURE menu

/MEASURE /TEMP.COMP.

/Type /Temp.

(0:Manual, 1:Auto) 12201230

ALARMS menu

/A L A RM 1 /Affect /Lim. /Dir. /Delay /Hyst. /Relay

(0:conc, 1:C/F, 2:No)

(0:Low, 1:Up)

(0:N.O., 1:N.C.)

212021302140215021602170

/A L A RM 2 /Affect /Lim.

/Dir. /Delay /Hyst. /Relay

(0:conc, 1:C/F, 2:No)

(0:Low, 1:Up)

(0:N.O., 1:N.C.)

22202230

2240225022602270


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A7-2

/A L A RM 3 /Mode

/Affect /Lim. /Dir. /Delay /Hyst. /Relay /Accept

(0:Limit, 1:Syst, 2:No)

(0:conc, 1:C/F, 2:No)

(0:Low, 1:Up)

(0:N.O., 1:N.C.)

2310

2320233023402350236023702380

/A L A RM 4 /Mode /Affect /Lim. /Dir. /Delay /Hyst. /Relay /Interv /Impul. /Ton /Toff /TmA

(0:Manu, 1:Auto)

(0:Limit, 1:Timer, 2:No)(0:conc, 1:C/F, 2:Non)

(0:Low, 1:Up)

(0;N.O., 1:N.C.)

241024202430244024502460247024012402240324042405

mA OUTPUTS menu

/OUT PU T1

/Affect /Type /Mode /Low /Mid. /Upp.

(0:A, 1:C/F, 2:conc)(0:0/20mA, 1:4/20mA)(0:lin, 1:dual)

411041204150413041604140

/OUT PU T2 /Affect /Type /Mode /Low /Mid. /Upp.

(0:A, 1:C/F, 2:conc)(0:0/20mA, 1:4/20mA)(0:lin, 1:dual)

421042204250423042604240


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dissolved oxygen analyzer user manual

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