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wtw Series 298 Operating Manual

Analog measuring transmitters ph 298, lf 298, oxi 298, cl 298 for ph/orp, conductivity, oxygen and chlorine
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OPERATING MANUAL
ba77196e03 07/2018
Series 298
ANALOG MEASURING TRANSMITTERS PH 298, LF 298, OXI 298, CL 298
FOR pH/ORP, CONDUCTIVITY, OXYGEN AND CHLORINE

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Summary of Contents for wtw Series 298

  • Page 1 OPERATING MANUAL ba77196e03 07/2018 Series 298 ANALOG MEASURING TRANSMITTERS PH 298, LF 298, OXI 298, CL 298 FOR pH/ORP, CONDUCTIVITY, OXYGEN AND CHLORINE...
  • Page 2 pH 298, LF 298, Oxi 298, Cl 298 © Copyright 2018 Xylem Analytics Germany GmbH Printed in Germany. ba77196e03 07/2018...

  • Page 3: Table Of Contents

    3.7.1 Connection diagram for WTW sensors ....... . 15 3.7.2 Connection diagram for temperature probe .
  • Page 4 pH 298, LF 298, Oxi 298, Cl 298 Contents Operation ............27 Operating elements .
  • Page 5 pH 298, LF 298, Oxi 298, Cl 298 Contents Communication with Modbus RTU ........55 Connecting the Modbus interfaces .
  • Page 6 pH 298, LF 298, Oxi 298, Cl 298 Contents ba77196e03 07/2018...

  • Page 7: Overview

    298, LF 298, Oxi 298, Cl 298 Overview Overview The analog measuring transmitters of the series 298 (pH 298, LF 298, Oxi 298, Cl 298) are an economical and technically flexible solution for measuring and (feedback) control tasks in field operation.

  • Page 8: Safety

    pH 298, LF 298, Oxi 298, Cl 298 Safety Safety Safety information 2.1.1 Safety information in the operating manual This operating manual provides important information on the safe operation of the product. Read this operating manual thoroughly and make yourself familiar with the product before putting it into operation or working with it.

  • Page 9: Safe Operation

    pH 298, LF 298, Oxi 298, Cl 298 Safety Safe operation 2.2.1 Authorized use The authorized use of the measuring transmitter consists of its use in online analysis. Only the operation and running of the sensor according to the instruc- tions and technical specifications given in this operating manual is authorized (see chapter 9 T ).

  • Page 10: Installation

    Installation Installation Scope of delivery The following parts are included in the scope of delivery:  a measuring transmitter of the series 298 (e.g. pH 298, LF 298, Oxi 298, Cl 298)  Option: Mounting plate with preassembled measuring transmitter ...

  • Page 11: Wall Mounting Of The Measuring Transmitter

    pH 298, LF 298, Oxi 298, Cl 298 Installation – in the vicinity of the instrument (recommendation)  Fire resistant (cables and lines), compliant with the following regulations – UL 2556 VW-1 (for USA, Canada) – IEC 60332-1-2 (outside the USA, Canada) Wall mounting of the measuring transmitter For wall mounting there are bore holes in the enclosure bottom of the measuring transmitter.

  • Page 12: Connecting The Sensor

    pH 298, LF 298, Oxi 298, Cl 298 Installation 20 mm 20 mm 310 mm 20 mm 20 mm Diameter of the bore holes 8.5 mm Rear distance to the wall 20 mm. Use the enclosed distance bolts 20 mm 20 mm 20 mm 20 mm...
  • Page 13 pH 298, LF 298, Oxi 298, Cl 298 Installation Suitable sensors Measuring transmitter type Requirements pH 298 Combination electrodes or separated electrodes LF 298 Integrated temperature sensor Oxi 298 Cl 298 Sensor with current output Maximum cable Sensor type max. cable length length (sensor Potentiometric sensors (pH/ORP) 10 m (without impedance...
  • Page 14 pH 298, LF 298, Oxi 298, Cl 298 Installation figure 3-2 Terminal assignment of the measuring transmitter (front, tilted downward) 1 Power supply, connection to the power supply in the enclosure bottom (X1.1-3) 2 Relay (X2.1-6) 3 Output (X3.1-3) Modbus (X3.4-6) 4 Temperature sensor (X4.3-6) Sensor (X4.8-11) Loosen the coupling ring of the cable gland at the position for the sensor...

  • Page 15: Connection Diagram For Sensors

    For instructions on how to mount the sensor at the site of operation (e.g. depth of immersion etc..) please refer to the relevant sensor operating manual. Connection diagram for sensors 3.7.1 Connection diagram for WTW sensors pH/ORP electrodes or arma- Adapter Wire colors...
  • Page 16 pH 298, LF 298, Oxi 298, Cl 298 Installation pH/ORP electrodes or arma- Adapter Wire colors Terminal designation tures required PL 82-225pHT VP VP 6-19/xx White X4.3 gray/brown X4.4 Green X4.5 PL 82-120pHT VP Blue or yellow X4.7 Copper + yellow/green X4.8 Transparent/white X4.10...

  • Page 17: Connection Diagram For Temperature Probe

    pH 298, LF 298, Oxi 298, Cl 298 Installation Oxygen sensors Adapter Wire colors Terminal designation required TriOxmatic® 690/701/702 ADA/AMPH Pink X4.3 black/gray X4.5 blue X4.7 Yellow X4.8 Brown X4.9 White X4.10 Green X4.11 Chlorine sensors Adapter Wire colors Terminal designation required FCML 68/412 (N) and TCML (N) AK-Cl 298...

  • Page 18: Connection Diagram For Other Sensors

    pH 298, LF 298, Oxi 298, Cl 298 Installation 3.7.3 Connection diagram for other sensors pH/ORP electrode figure 3-4 Combination electrode / Combination electrode with integrated temperature sensor Conductivity measuring cell figure 3-5 2-electrode measuring cell / 4-electrode measuring cell 1 Measuring electrode 2 Feed electrode 3 Feed electrode...

  • Page 19: Connections (Relays, Current Outputs, Modbus)

    pH 298, LF 298, Oxi 298, Cl 298 Installation Oxygen sensor figure 3-6 Membrane-covered amperometric oxygen sensor 1 Cathode 2 Anode Chlorine measuring cell figure 3-7 Measuring cell for disinfectant (chlorine) Connections (relays, current outputs, Modbus) 3.8.1 General installation instructions WARNING If external electrical circuits that are subject to the danger of physical con- tact are incorrectly connected to the relay contacts, there may be a danger...
  • Page 20 pH 298, LF 298, Oxi 298, Cl 298 Installation be connected by a qualified electrician.  Electrical circuits subject to the danger of physical contact must only be connected when they are voltage-free.  If electrical circuits subject to the danger of physical contact are switched with a relay, no circuit that is not subject to this danger may be operated on the further relays.
  • Page 21 pH 298, LF 298, Oxi 298, Cl 298 Installation 1 2 3 4 5 6 1 2 3 4 5 6 figure 3-8 Terminal assignment: Connection for relays, current outputs and Modbus (enclosure lid, rear side) 1 X2.1: Relay 2: Normally closed X2.2: Relay 2: Changeover contact (max.

  • Page 22: Electrical Connections: General Instructions

    pH 298, LF 298, Oxi 298, Cl 298 Installation Close the enclosure. Reinstall the cover on the left and right-hand side of the measuring transmitter. Electrical connections: General instructions Cable glands All electric cables are fed from below via prepared openings in the enclosure of the measuring transmitter.
  • Page 23 pH 298, LF 298, Oxi 298, Cl 298 Installation WARNING If the power supply is connected incorrectly, it may represent a danger to life from electric shock. Pay attention to the following points during instal- lation:  The measuring transmitter must only be connected by an electrician. ...
  • Page 24 pH 298, LF 298, Oxi 298, Cl 298 Installation figure 3-9 Inserting the power line. Feed the power line into the enclosure through the cable gland. figure 3-10Terminal assignment for power connection (enclosure bottom) 100 ... 240 V AC supply voltage 24 V DC supply voltage 1 X6.1: L1 conductor (L) 1 X6.1: + 24V DC...

  • Page 25: Commissioning

    pH 298, LF 298, Oxi 298, Cl 298 Installation Connect the wires to the terminal strip. Make sure that the cable assignment agrees with the specification on the terminal label under the terminal strip. Fix the cable using the preinstalled cable tie. Tighten the coupling ring of the cable gland for the power line on the enclosure.
  • Page 26 pH 298, LF 298, Oxi 298, Cl 298 Installation Putting the Switch on the power supply of the measuring transmitter. measuring As soon as the instrument is successfully initialized, the measured value display transmitter into appears. operation ba77196e03 07/2018...

  • Page 27: Operation

    pH 298, LF 298, Oxi 298, Cl 298 Operation Operation Operating elements figure 4-1 Operating elements of the measuring transmitter (example: pH 298) 1 Display (OLED) (see section 4.2 M EASURED VALUE AND STATUS DISPLAY 2 Keypad Keys Symbol Function <>...

  • Page 28: Measured Value And Status Display

    pH 298, LF 298, Oxi 298, Cl 298 Operation Measured value and status display figure 4-2 Measured value and status display (example: pH) 1 Status display HOL (Hold): The measured value is frozen (also for relays, current outputs and Modbus) 2 measured value 3 2nd value 4 Status relay 1 (in the example: closed)

  • Page 29: General Operating Principles

    pH 298, LF 298, Oxi 298, Cl 298 Operation Main measured value Secondary measured Temperature value pH 298 (ORP) ORP as absolute voltage ORP as voltage in mV in temperature in °C in mV relation to the hydrogen electrode LF 298 Conductivity Salinity in g/kg temperature in °C...

  • Page 30: Terminating Inputs And Returning To The Measured Value Display

    pH 298, LF 298, Oxi 298, Cl 298 Operation  select a number in the range 0 ... 9 with the up or down arrow key (<>, < >)  cancel the input by simultaneously pressing the left and right arrow keys (<>, <>).

  • Page 31: Setting The Date And Time

    pH 298, LF 298, Oxi 298, Cl 298 Operation sured value display to the configuration menu (main menu). configuration relay general outputs PID controller data logg.. modbus temperature simulation meas. Range (LF 298) back sensor type (pH 298) main value (Oxi 298 / Cl 298) Details on the individual settings are given in the relevant chapters of the func- tions.

  • Page 32: Calibrating (Cal Menu)

    pH 298, LF 298, Oxi 298, Cl 298 Operation For this the temperature of the measurement and calibration media has to be measured or stored as a fixed temperature. If the fixed temperature is enabled it is used for temperature compensation. The Fix message appears in the upper right-hand corner of the display.
  • Page 33 pH 298, LF 298, Oxi 298, Cl 298 Operation Please note the instructions on calibration in the operating manual of your sensor in addition to the calibration procedure on the instru- ment. Menu item Explanation input The calibration values last determined are displayed. If a valid calibration by means of a calibration procedure is not possible, the calibration values can be manually entered here.

  • Page 34: Calibration Evaluation

    pH 298, LF 298, Oxi 298, Cl 298 Operation If the displayed calibration values are not plausible, you can cancel the calibration and thus the taking over of the displayed calibration values with < > + < >. The measuring transmitter continues measuring with the old calibration values.

  • Page 35: Calibrating A Ph / Orp Electrode

    pH 298, LF 298, Oxi 298, Cl 298 Operation 4.7.3 Calibrating a pH / ORP electrode Please note the special instructions on calibration in the operating manual of your sensor in addition to the calibration procedure on the instrument. Menu item Explanation input Input field for calibration values (asymmetrie, slope)

  • Page 36: Calibrating An Oxygen Sensor

    pH 298, LF 298, Oxi 298, Cl 298 Operation Menu item Explanation input Input field for calibration values (cell constant, temp. coeff., cable offset, TDS factor). temp. offs. Input field for offsetting the temperature value (positive or negative) one point Starts the procedure for the single-point calibration with manual input of the standard solution, Any standard solutions are allowed.

  • Page 37: Calibrating A Chlorine Sensor

    pH 298, LF 298, Oxi 298, Cl 298 Operation 4.7.6 Calibrating a chlorine sensor Please note the special instructions on calibration in the operating manual of your sensor in addition to the calibration procedure on the instrument. Calibration of the measuring transmitter Cl 298 (to measure free or total chlo- rine) in conjunction with the relevant measuring cells is done with single-point calibration in comparison with photometrically determined laboratory data.

  • Page 38: Info Menu

    pH 298, LF 298, Oxi 298, Cl 298 Operation Displaying stored Switch to the measured value display as necessary. data Using <LOG>, show the recorded data on the display. The graphic display of the recorded data pops up. figure 4-3 Data logger (graphic display) <>...

  • Page 39: Password Protection

    pH 298, LF 298, Oxi 298, Cl 298 Operation The low power mode is switched on. The screen saver is automatically enabled after 20 min. Disabling the low Activating any key switches the screen saver off again for 20 min. power mode 4.11 Password protection...

  • Page 40: Outputs

    pH 298, LF 298, Oxi 298, Cl 298 Outputs Outputs The measuring transmitter has two relay outputs and two current outputs. Functioning of the outputs  Relay outputs work as normally closed or normally open contacts.  Current outputs provide a current dependent on the measured value. Functions Relay Current output...

  • Page 41: Pid Controller (Relay And Current Output)

    pH 298, LF 298, Oxi 298, Cl 298 Outputs Monitoring limiting Measured values using one value or two relays Relay 1 Hysteresis UL Hysteresis LL Relay 2 Time 1 Upper limit value (relay 1) exceeded 2 Selected switching delay t1 for relay 1 expired Relay 1 switches 3 Hysteresis for upper limiting value (relay 1) undercut 4 Selected switching delay t1 for relay 1 expired...
  • Page 42 pH 298, LF 298, Oxi 298, Cl 298 Outputs td [s] (reset ti [s] (hold- time) back time) Regulator type 1 to 9999 PI controller 1 to 9999 PD controller 1 to 9999 1 to 9999 PID controller Proportional With proportional output, a relay switches on and off cyclically within a defined output measured value range (proportional band).
  • Page 43 pH 298, LF 298, Oxi 298, Cl 298 Outputs Output with two Switching frequency f or relays Pulse width Proportional bands Relay 1 and 2 Measured value Relay 1 Relay 2 1 Start value Measured value with minimum pulse width or switching frequency 2 End value Measured value with maximum pulse width or switching frequency figure 5-3 Output with two relays...
  • Page 44 pH 298, LF 298, Oxi 298, Cl 298 Outputs of the controller is shown below. Thus it is possible to realize different transmis- sion behavior for different parts of the control range. Relais 1 Relais 2 100 % - 100 % figure 5-4 Characteristic curve PID controller (example: pulse width output) 1 target value Measured value that should be achieved by the control...

  • Page 45: Pid Controller As Pulse Width Controller (Pwm)

    pH 298, LF 298, Oxi 298, Cl 298 Outputs The minimum time can be set to adjust to different actuators. It it used to prevent switching processes that are too quick for the actuator. If it is undercut and the control parameter is outside the dead band, the actuator is triggered with the minimum time.

  • Page 46: Pid Controller As Analog Controller (Current 0/4

    pH 298, LF 298, Oxi 298, Cl 298 Outputs (Start value), the turn-on duration (t ) is short, i.e. the relay operated for a shorter period of time. If the duration of the close or open pulse is shorter than 0.1 s, the relay remains open or closed for the complete cycle time.

  • Page 47: Limiting Value Signal

    pH 298, LF 298, Oxi 298, Cl 298 Outputs Using <    >, highlight the PID controller menu item and confirm with <ENTER>. Select the setting release/off or type of the controller/current . Quit the menu PID controller. 5.2.3 Limiting value signal The basics of the function are described in the introductory chapter (see section 5.1.1).

  • Page 48: Configuring The Analog Outputs

    pH 298, LF 298, Oxi 298, Cl 298 Outputs Relay 1 is always in the other condition during the specified intervals. During the turn-on time of relay 2 (relay closed), relay 1 is switched off. When relay 2 is switched off (relay open), HOL is displayed. During this time, relay 1 is switched on (relay closed).

  • Page 49: Configuring The Analog Outputs

    pH 298, LF 298, Oxi 298, Cl 298 Outputs Open the configuration menu with <CONF>. Using <    >, highlight the PID controller menu item and confirm with <ENTER>. Select the setting release/off or type of the controller/PWM. Quit the menu PID controller.

  • Page 50: Configuring The Voltage Outputs

    pH 298, LF 298, Oxi 298, Cl 298 Outputs 5.3.3 Configuring the voltage outputs Disconnect the instrument from the supply voltage Remove all wires connected to the analog outputs Open the instrument. Carry out the instrument coding on the basic PCB inside the instrument 0 ...5 V (jumper plugged in) 0/4 ...

  • Page 51: Configuring The Pid Controller

    pH 298, LF 298, Oxi 298, Cl 298 Outputs Submenu Selection/Values Explanation output 1 current output output 2 output val. measured value 2nd value temperature val. 0/4 mA Input field for the 0/4 mA start value val. 20 mA Input field for the 20 mA end value type 0...20 mA 4...20 mA...
  • Page 52 pH 298, LF 298, Oxi 298, Cl 298 Outputs Submenu Selection/Values Explanation type of the Pulse width controller controller current 0...20 Analog controller 0…20 mA current 4...20 Analog controller 4…20 mA cont. Value Select the target values measured value 1 measured value measured value 2 2nd value...

  • Page 53: Hold State

    pH 298, LF 298, Oxi 298, Cl 298 Outputs HOLD state During maintenance activities such as calibrating or cleaning a sensor the measuring transmitter does not display a real measured value. In these situations, the processing of the measured value for process control or regulation purposes is undesired.

  • Page 54: Hold Status During Operation Of A Flow Monitor

     No flow. If there is a flow, the flow monitor releases a control signal. If the measuring transmitter is part of a WTW drinking water platform for chlorine with flow monitoring, the default setting of the signal input causes the FLOW status to be triggered and shown on the dis- play (FLO) if a signal is present (i.e.

  • Page 55: Communication With Modbus Rtu

    pH 298, LF 298, Oxi 298, Cl 298 Communication with Modbus RTU Communication with Modbus RTU Connecting the Modbus interfaces The Modbus is connected to the Modbus connectors (X3.4 ... X3.6) of the measuring transmitter. General instal- Always install the wires with a minimum distance of 20 cm from any other wires lation instructions carrying a voltage of more than 60 V.

  • Page 56: Setting The Modbus Interface Parameters

    pH 298, LF 298, Oxi 298, Cl 298 Communication with Modbus RTU figure 6-1 Terminal assignment Modbus (front, tilted downwards) 1 Modbus (X3.4-6) X3.4: A (+) RS485 / Modbus X3.5: B (-) RS485 / Modbus X3.6: GND / Modbus Connect the cable ends to the terminal strip. When doing so, follow the designations of the terminals.

  • Page 57: Data Transmission

    pH 298, LF 298, Oxi 298, Cl 298 Communication with Modbus RTU Submenu Selection/Values Explanation baud rate 9600 Select the baud rate 19200 38400 parity none 1s None, 1 stop bit none 2s None, 2 stop bits even 1s Even, 1 stop bit even 2s Even, 2 stop bits odd 1s...

  • Page 58: Data Block Of The Sensor

    pH 298, LF 298, Oxi 298, Cl 298 Communication with Modbus RTU 6.3.2 Data block of the sensor The data of the sensor are stored in 8 registers. Modbus Information Data format Register Data type 0001 Sensor number (slave ID) Int 8 0001 9-16...

  • Page 59: Coded Data For Fieldbus Communication

    pH 298, LF 298, Oxi 298, Cl 298 Communication with Modbus RTU figure 6-2 Data traffic and timeout periods (T1 ... T3) 1 Data query master 2 Response slave 3 T1: Final recognition of query protocol (attention - depending on the baud rate, always 3 characters long) 4 T2: Working time of slave (max.

  • Page 60: Instrument Status

    pH 298, LF 298, Oxi 298, Cl 298 Communication with Modbus RTU Instrument status Code (hex) Status indica- Explanation Instrument runs without complaints HOLD manually triggered HOLD due to calibration mode HOLD due to Timer function CAL error Measuring mode / sensor type Code (hex) Sensor type / measuring mode pH test amplifier...
  • Page 61 pH 298, LF 298, Oxi 298, Cl 298 Communication with Modbus RTU Code (hex) Sensor type / measuring mode aCond 0…20 mS (4-pole) aCond 0…500 mS (4-pole) Cond 0…20 µS ZK=0.1cm Cond 0…2 µS ZK=0.01cm Cond 0…200 µS ZK=0.1cm Cond 0…20 µS ZK=0.01cm ba77196e03 07/2018...

  • Page 62: Maintenance And Cleaning

    pH 298, LF 298, Oxi 298, Cl 298 Maintenance and cleaning Maintenance and cleaning Maintenance Maintenance Component Maintenance activities Measuring transmitter No maintenance required Sensor Depending on the type of sensor (see operating manual of the sensor) Cleaning Measuring Clean components mounted in the open of gross contamination as necessary. transmitter To prevent dirt from penetrating into the open enclosure, it is recommended that you roughly clean the component and its direct environment prior o each...

  • Page 63: What To Do If

    pH 298, LF 298, Oxi 298, Cl 298 What to do if ... What to do if ... Information on errors Information on possible errors of the sensor is given in chapter ... of the sensor operating manual. HAT TO DO IF Error causes and elimination The measuring Cause...

  • Page 64: Errors Of The Modbus Communication

    pH 298, LF 298, Oxi 298, Cl 298 What to do if ... Errors of the Modbus communication Data transmission Cause Remedy between the – Wrong wiring – Check / change the connections Modbus master – Wrong setting of the address, –...

  • Page 65: Technical Data

    pH 298, LF 298, Oxi 298, Cl 298 Technical data Technical data Measuring transmitter Dimensions figure 9-1 Dimension drawing with boreholes A (dimensions in mm) Test certificates Mechanical Enclosure material Cast aluminum structure Weight Approx. 1.4 kg Type of protection IP 65 Ambient - 10 °C ...
  • Page 66 pH 298, LF 298, Oxi 298, Cl 298 Technical data Electrical data Power supply Nominal voltage: 100 ... 240 VAC ± 10 % (line power Frequency: 50/60 Hz version) according to DIN IEC 60038 Line power connection: 2 poles, N and L Cable cross-section for the line power connection: Europe: 1.5 ...
  • Page 67 pH 298, LF 298, Oxi 298, Cl 298 Technical data Relay functions Programmable as: – Normally closed or normally open – Limiting value signal – Monitoring of the warning and error signals – Proportional frequency output – Proportional pulse width output Current outputs Output Galvanically insulated from the sensor...

  • Page 68: Mounting Plate

    pH 298, LF 298, Oxi 298, Cl 298 Technical data EMC product and EN 61326 EMC requirements for electrical resources for con- system character- trol technology and laboratory use istics – Resources for industrial areas, intended for indis- pensable operation –...

  • Page 69: Index

    pH 298, LF 298, Oxi 298, Cl 298 Index Index Ambient conditions ....... 65, 68 Operating elements ........27 Arrow keys ....... 40, 43, 46, 54 Operating principles ........29 Outputs ............40 Cable length ..........13 Calibration Password ............39 Chlorine sensor ........37 PID controller ..........41 Conductivity measuring cell ....

  • Page 70: Appendix: The Settings Menu

    Appendix: The SETTINGS menu Appendix: The SETTINGS menu Setting Submenu Selection/Values Explanation relay relay 1 select value measured value, relay 2 2nd value temperature limits Input field for the limiting value hysterese Input field for the switching hystere- min/max Select limiting value type Min or Max release Enable or disable the function Timer...
  • Page 71 Appendix: The SETTINGS menu Setting Submenu Selection/Values Explanation data logg. interval Input field for the save interval temperature fixed temp. Enabling / disabling the fixed tem- perature temp. Value Input field for the fixed temperature value sensor type pH / ORP electrodes can be con- (pH 298) nected to the pH 298 measuring transmitters.
  • Page 72 Appendix: The SETTINGS menu Setting Submenu Selection/Values Explanation general password Input field for the Change the password (in delivery password condition: 1) clock Input field for date Setting of date and time / time reset Restart laguage german Selecting the language english filter Signal averaging...
  • Page 73 Appendix: The SETTINGS menu Setting Submenu Selection/Values Explanation PID controller type of the Pulse duration controller controller current 0...20 Analog controller 0…20 mA current 4...20 Analog controller 4…20 mA cont. Value Select the target values measured value 1 measured value, measured value 2 2nd value temperature...
  • Page 74 Appendix: The SETTINGS menu Setting Submenu Selection/Values Explanation modbus device ID 1 ... 247 Modbus interface parameters (see section 6.2) baud rate 4800 9600 19200 38400 parity none 1s none 2s even 1s even 2s odd 1s odd 2s simulation relay 1 The functioning of the relays and the relay 2...
  • Page 76 For more information on how Xylem can help you, go to xyleminc.com. ® Service address: Xylem Analytics Germany Sales GmbH & Co. KG Dr.-Karl-Slevogt-Str. 1 82362 Weilheim Germany Tel.: +49 881 183-325 Fax: +49 881 183-414 E-Mail wtw.rma@xyleminc.com Internet: www.WTW.com Xylem Analytics Germany GmbH Dr.-Karl-Slevogt-Str. 1 82362 Weilheim Germany...

This manual is also suitable for:

Ph 298Lf 298Oxi 298Cl 298

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