Xylem WTW Multi 3430 Operating Manual
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Xylem WTW Multi 3430 Operating Manual

Digital meter for digital ids sensors
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OPERATING MANUAL
ba75865e19 04/2015
Multi 3430
DIGITAL METER FOR DIGITAL IDS SENSORS

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  • Page 1 OPERATING MANUAL ba75865e19 04/2015 Multi 3430 DIGITAL METER FOR DIGITAL IDS SENSORS...
  • Page 2 Multi 3430 The latest version of the present operating manual is avail- www.wtw.com. able on the Internet under Copyright © 2015, WTW GmbH Reproduction in whole - or even in part - is prohibited without the express written permission of WTW GmbH, Weilheim. Printed in Germany.

  • Page 3: Table Of Contents

    Multi 3430 Contents Multi 3430 - Contents Overview ........7 Keypad .
  • Page 4 Contents Multi 3430 Sensor info........36 Channel display .
  • Page 5 Contents Multi 3430 4.12.5 What to do if ......100 4.13 Data storage ....... . . 102 4.13.1 Manual storage .
  • Page 6 Multi 3430 Firmware-Update for IDS Sensors ....132 ba75865y19 04/2015...

  • Page 7: Overview

    Multi 3430 Overview Overview The compact, digital precision meter Multi 3430 enables you to carry out pH measurements, ORP measurements, conductivity measure- ments, dissolved oxygen (D.O.) measurements and turbidity measure- ments quickly and reliably. The Multi 3430 provides the maximum degree of operating comfort, reliability and measuring certainty for all applications.

  • Page 8: Keypad

    Multi 3430 Overview The two USB interfaces (USB-A and USB-B) enable you to:  Transmit data to – a USB memory device – a PC  Update the meter firmware. Keypad In this operating manual, keys are indicated by brackets <..> . The key symbol (e.g.

  • Page 9: Display

    Multi 3430 Overview <STO>: Saves a measured value manually <STO >: Opens the menu for the automatic save function <RCL>: Displays the manually stored measured values <RCL >: Displays the automatically stored measured values <><>: Menu control, navigation <><>: <MENU/ENTER>: Opens the menu for measurement settings / Confirms MENU MENU...
  • Page 10 Multi 3430 Overview Function display AutoCal Calibration with automatic buffer recognition, e.g. indicators e.g. TEC with the buffer set: Technical buffers ConCal Calibration with any buffers Error An error occurred during calibration Stability control (AutoRead) is active HOLD Measured value is frozen (<AR> key) Batteries are almost empty Mains operation Mains operation with charge function...

  • Page 11: Socket Field

    Multi 3430 Overview Socket field Connectors: Digital sensors (pH, ORP, conductivity, D.O.) Power pack USB-A (host) interface USB B (device) interface Service interface CAUTION Only connect sensors to the meter that cannot return any voltages or currents that are not allowed (> SELV and > current circuit with current limiting).

  • Page 12: Automatic Sensor Recognition

    Multi 3430 Overview Automatic sensor recognition The automatic sensor recognition for IDS sensors allows  to operate an IDS sensor at different meters without recalibration  to operate different IDS sensors at one meter without recalibration  to assign measurement data to an IDS sensor –...

  • Page 13: Ids Adapter For Analog Sensors

    Multi 3430 Overview Sensor data from IDS IDS sensors transmit the following sensor data to the meter: sensors  SENSOR ID – Sensor name – Sensor series number  Calibration data – Calibration date – Calibration characteristics – Calibration interval –...
  • Page 14 Multi 3430 Overview ba75865e19 04/2015...

  • Page 15: Safety

    Multi 3430 Safety Safety This operating manual contains basic instructions that you must follow during the commissioning, operation and maintenance of the meter. Consequently, all responsible personnel must read this operating man- ual before working with the meter. The operating manual must always be available within the vicinity of the meter.

  • Page 16: Authorized Use

    Multi 3430 Safety Authorized use The authorized use of the meter consists exclusively of the measure- ment of the pH, ORP, conductivity and dissolved oxygen in a field and laboratory environment. The technical specifications as given in chapter 7 T must ECHNICAL DATA be observed.
  • Page 17 Multi 3430 Safety Safe operation If safe operation is no longer possible, the meter must be taken out of service and secured against inadvertent operation! Safe operation is no longer possible if the meter:  has been damaged in transport ...
  • Page 18 Multi 3430 Safety ba75865e19 04/2015...

  • Page 19: Commissioning

    Multi 3430 Commissioning Commissioning Scope of delivery  Meter Multi 3430  4 NiMH rechargeable batteries 1.2 V Mignon type AA  USB cable (A plug on mini B plug)  Power pack  Short instructions  Detailed operating manual (4 languages) ...

  • Page 20: Inserting The Rechargeable Batteries

    Multi 3430 Commissioning 3.3.1 Inserting the rechargeable batteries Unscrew the two screws (1) on the underside of the meter. Open the battery compartment (2) on the underside of the meter. CAUTION Make sure that the poles of the rechargeable batteries are posi- tioned correctly.

  • Page 21: Switching On The Meter

    Multi 3430 Commissioning Make sure that only NiMH rechargeable batteries are in the battery compartment. The charging process is optimized for NiMH re- chargeable batteries. Other battery types can cause damage dur- ing the charging process. Make sure that the ambient temperature is max. 40 °C while the power pack is connected.

  • Page 22: Setting The Date And Time

    Multi 3430 Commissioning cable. 3.3.4 Setting the date and time See section 4.3.5 ba75865e19 04/2015...

  • Page 23: Operation

    Multi 3430 Operation Operation Switching on the meter Switching on Press the <On/Off> (or <On/Off >) key. The meter performs a self-test. The display shows the manufacturer's logo while the self-test is being performed. If a sensor is connected, the measured value display appears. Info 15.03.2014 08:00 Note...
  • Page 24 Multi 3430 Operation Login User name Admin Password #### Change password 15.03.2014 08:00 Using <><>, enter the User name menu item and confirm with <MENU/ENTER>. The user name is highlighted. Using <><>, select a user name and confirm with <MENU/ ENTER>.
  • Page 25 Multi 3430 Operation Changing the password If the administrator has set up the access with password protection: Switch on the meter with <On/Off> (or <On/Off >). The Login dialog box appears. Using <><>, enter the User name menu item and confirm with <MENU/ENTER>.

  • Page 26: General Operating Principles

    Multi 3430 Operation General operating principles This section contains basic information on the operation of the Multi 3430. Operating elements, An overview of the operating elements and the display is given in sec- display tion 1.1 and section 1.2. Operating modes, An overview of the operating modes and navigation of the Multi 3430 is navigation given in section 4.3.1 and section 4.3.3.

  • Page 27: Display Of Several Sensors In Measuring Mode

    Multi 3430 Operation 4.3.2 Display of several sensors in measuring mode The measured values of the connected sensors can be displayed in the following ways:  Clear display of all connected sensors  Detailed display of one sensor (e.g. incl. CMC feature with pH sensors) With the softkey you can very easily switch between the two display types.
  • Page 28 Multi 3430 Operation Menus and dialogs The menus for settings and dialogs in procedures contain further sub- menus. The selection is made with the <><> keys. The current selection is displayed with a frame.  Submenus The name of the submenu is displayed at the upper edge of the frame.
  • Page 29 Multi 3430 Operation Calibration record Calibration data storage Buffer: Single-point calibration: Calibration interval: Unit for slope: mV/pH ] 2.00 4.01 7.00 10.01 (25 °C) 15.03.2014 08:00  Messages Information is marked by the [ ] symbol. They cannot be selected. Example: Calibration record Calibration data storage...

  • Page 30: Example 1 On Navigation: Setting The Language

    Multi 3430 Operation 4.3.4 Example 1 on navigation: Setting the language Press the <On/Off> key. The measured value display appears. The instrument is in the measuring mode. Info 15.03.2014 08:00 Open the Storage & config menu with <MENU/ENTER >. The instrument is in the setting mode. Storage &...
  • Page 31 Multi 3430 Operation System General Interface Clock function Service information Reset 15.03.2014 08:00 Select the General submenu with <><>. The current selection is displayed with a frame. Open the General submenu with <MENU/ENTER>. General Language: Deutsch Acoustic signal: Volume Illumination: Brightness: 50 % Switchoff time:...

  • Page 32: Example 2 On Navigation: Setting The Date And Time

    Multi 3430 Operation Confirm the setting with <MENU/ENTER>. The meter switches to the measuring mode. The selected language is active. 4.3.5 Example 2 on navigation: Setting the date and time The measuring instrument has a clock with a date function. The date and time are indicated in the status line of the measured value display.

  • Page 33: Sensor-Independent Settings

    Multi 3430 Operation Select and confirm the Time menu with <><> and <MENU/ ENTER>. The hours are highlighted. Change and confirm the setting with <><> and <MENU/ ENTER>. The minutes are highlighted. Change and confirm the setting with <><> and <MENU/ ENTER>.
  • Page 34 Multi 3430 Operation Settings To open the Storage & config menu, press the <MENU/ENTER > key in the measured value display. After completing the settings, switch to the measured value display with <M>. Default settings are printed in bold. Menu item Setting Description System / General / Language...

  • Page 35: Data Storage

    Multi 3430 Operation Menu item Setting Description System / Interface / Extended Oxi The measured values for the output parameters concentration (mg/ l) and saturation (%) are output together. The function is active if the fol- lowing requirements are met: ...

  • Page 36: Automatic Switch-Off

    Multi 3430 Operation  when the automatic Stability control is switched off. 4.4.4 Automatic switch-off The instrument has an automatic switchoff function in order to save the batteries (see section 4.4.1). The automatic switchoff switches off the measuring instrument if no key is pressed for an adjustable period. The automatic switchoff is not active ...

  • Page 37: Channel Display

    Multi 3430 Operation SenTix 940 B092500013 More 15.03.2014 08:00 Display further sensor data (settings) with [More]. SenTix 940 B092500013 Man. temperature: 25 °C pH resolution 0.001 mV resolution Buffer Calibration interval Unit for slope mV/pH QSC: 15.03.2014 08:00 Channel display The Multi 3430 manages the connected sensors and displays which sensor is plugged to which connection.

  • Page 38: Ph Value

    Multi 3430 Operation pH value 4.7.1 General information You can measure the following parameters:  pH value [ ]  Sensor voltage [mV] Note The sensor connection and the USB-B (device) interface are galvani- cally isolated. This facilitates interference-free measurements also in the following cases: ...

  • Page 39: Measuring The Ph Value

    Multi 3430 Operation 4.7.2 Measuring the pH value Perform the preparatory activities according to section 4.7.1. Immerse the IDS pH sensor in the test sample. Info 15.03.2014 08:00 Select the pH or mV display with <M>. Stability control The stability control function (AutoRead) continually checks the stability (AutoRead ) of the measurement signal.

  • Page 40: Settings For Ph Measurements

    Multi 3430 Operation interface without the AutoRead info. Release the frozen measured value again with <AR> or <M>. The [AR] status display disappears. The display switches back to the previous indication. Criteria for a stable The Stability control function checks whether the measured values are measured value stable within the monitored time interval.
  • Page 41 Multi 3430 Operation Menu item Possible setting Description Calibration / Calibration data Outputs the calibration data storage to the storage / Output to USB flash interface USB-B (USB flash drive/USB drive or printer printer) Calibration / Calibration data Outputs the calibration data storage to the storage / Output to RS232/USB interface USB-B (PC) Calibration /Buffer...

  • Page 42: Ph Calibration

    Multi 3430 Operation Menu item Possible setting Description Alternative temperature Takes the measured temperature value from an IDS sensor. This menu item is only available if an IDS adapter and an IDS sensor with temperature sensor are connected. ▭▭▬ Temperature from channel Selects the channel (sensor), that provides ▭▬▭...
  • Page 43 Multi 3430 Operation Buffer set* pH values VariCal NIST/DIN 1.679 25 °C DIN buffers according to DIN 4.006 19266 and NIST Traceable Buf- 6.865 fers 9.180 12.454 2.000 25 °C WTW Technical buffers 4.010 7.000 10.011 Merck 1* 4.000 20 °C 7.000 9.000 Merck 2 *...
  • Page 44 Multi 3430 Operation Buffer set* pH values Fisher * 2.007 25 °C 4.002 7.004 10.002 Fluka BS * 4.006 25 °C 6.984 8.957 Radiometer * 1.678 25 °C 4.005 7.000 9.180 Baker * 4.006 25 °C 6.991 10.008 Metrohm * 3.996 25 °C 7.003...
  • Page 45 Multi 3430 Operation Buffer set* pH values 2.000 20 °C Chemsolute * 4.000 7.000 10.000 4.000 25 °C USABlueBook * 7.000 10.000 YSI * 4.000 25 °C 7.000 10.000 Brand names or trade names are trademarks of their respective owners protected by law. Note The buffers are selected in the menu, pH / <MENU/ENTER>...
  • Page 46 Multi 3430 Operation Display calibration data You can have the data of the last calibration displayed (see section and output to interface 4.7.8). Subsequently, you can transmit the displayed calibration data to the interface, e. g. to a PC, with the <PRT> key. Note The calibration record is automatically transmitted to the interface after calibrating.

  • Page 47: Calibration Interval

    Multi 3430 Operation Display Calibration Zero point Slope record [mV] [mV/pH] Eliminate the error according to chapter HAT TO DO IF Note For pH IDS sensors, you can optionally enable a more finely graded calibration evaluation (QSC) (see section 4.7.10). Preparatory activities Perform the following preparatory activities when you want to calibrate: Connect the IDS pH sensor to the meter.

  • Page 48: Carrying Out An Automatic Calibration (Autocal)

    Multi 3430 Operation 4.7.6 Carrying out an automatic calibration (AutoCal) Make sure that in the sensor menu, Buffer menu, the buffer set is cor- rectly selected (see section 4.7.3). Use any one to five buffer solutions of the selected buffer set in ascend- ing or descending order.
  • Page 49 Multi 3430 Operation 15.03.2014 08:00 Wait for the end of the measurement with stability control or accept the calibration value with <MENU/ENTER>. The calibration display for the next buffer appears (voltage dis- play). If necessary, finish the calibration procedure as a single-point cal- ibration with <M>.
  • Page 50 Multi 3430 Operation 15.03.2014 08:00 Wait for the measurement with stability control to be completed or terminate the stability control and take over the calibration value with <MENU/ENTER>. The calibration display for the next buffer appears (voltage dis- play). If necessary, finish the calibration procedure as a two-point cal- ibration with <M>.
  • Page 51 Multi 3430 Operation Wait for the measurement with stability control to be completed or terminate the stability control and take over the calibration value with <MENU/ENTER>. The calibration display for the next buffer appears (voltage dis- play). If necessary, use <M> to finish the calibration. The calibration record is displayed.

  • Page 52: Carrying Out A Manual Calibration (Concal)

    Multi 3430 Operation 4.7.7 Carrying out a manual calibration (ConCal) Make sure that in the sensor menu, Buffer menu, the ConCal buffer set is correctly selected (see section 4.7.3). Use any one to five buffer solutions in ascending or descending order. Note If single-point calibration was set in the menu, the calibration procedure is automatically finished with the measurement of buffer solution 1 and...
  • Page 53 Multi 3430 Operation 15.03.2014 08:00 Wait for the measurement with stability control to be completed or terminate the stability control and take over the calibration value with <MENU/ENTER>. The pH value of the buffer solution is displayed. 15.03.2014 08:00 Set the nominal buffer value for the measured temperature with <><>.
  • Page 54 Multi 3430 Operation Continuing with two- Thoroughly rinse the IDS sensor with deionized water. point calibration Immerse the IDS pH sensor in buffer solution 2. When measuring without temperature sensor: Measure the temperature of the buffer manually and enter it with <><>.
  • Page 55 Multi 3430 Operation Continuing with three- Thoroughly rinse the IDS pH sensor with deionized water. to five-point calibration Immerse the IDS pH sensor in the next buffer solution. When measuring without temperature sensor: Measure the temperature of the buffer manually and enter it with <><>.

  • Page 56: Displaying Calibration Records

    Multi 3430 Operation 4.7.8 Displaying calibration records The calibration data can be displayed and then output to the interface. Displaying the The calibration record of the last calibration is to be found under the calibration record menu item, Calibration / Calibration record. To open it in the measured value display, press the <CAL >...

  • Page 57: Continuous Measurement Control (Cmc Function)

    Multi 3430 Operation 4.7.9 Continuous measurement control (CMC function) The Continuous Measurement Control (CMC function) facilitates to evaluate the current measured value instantly and definitely. After each successful calibration the scale of the pH measuring range is displayed in the measured value display. Here you can very clearly see whether or not the current measured value is in the calibrated part of the measuring range.

  • Page 58: Qsc Function (Sensor Quality Control)

    Multi 3430 Operation 4.7.10 QSC function (sensor quality control) General information The QSC function (Quality Sensor Control) is a new sensor evaluation on the QSC function for digital IDS sensors. It evaluates the condition of an IDS pH sensor individually and with a very fine grading. On the display, the QSC color scale (from green to yellow) indicates the current sensor evaluation by means of a pointer.
  • Page 59 Multi 3430 Operation QSC calibration The QSC function is enabled by once carrying out an additional three- point calibration with special QSC buffer solutions. It covers the mea- suring range of the sensor from pH 2 to pH 11. The QSC initial calibra- tion determines the actual condition of the sensor and stores it as a reference in the sensor.
  • Page 60 Multi 3430 Operation the sensor evaluation with the sensor symbol. As soon as the three-point calibration has been successfully carried out you can decide whether to accept or discard the cal- ibration as the QSC initial calibration. The QSC initial calibration is completed. The sensor is calibrated. If you want to calibrate with special buffers for your measurements, you can subsequently carry out a normal calibration with your buffers.

  • Page 61: Orp Voltage

    Multi 3430 Operation ORP voltage 4.8.1 General information You can measure the following parameters:  ORP [mV] Note The sensor connection and the USB-B (device) interface are galvani- cally isolated. This facilitates interference-free measurements also in the following cases:  Measurement in grounded test samples ...
  • Page 62 Multi 3430 Operation Select the mV display with <M>. Stability control The stability control function (AutoRead) continually checks the stability (AutoRead ) of the measurement signal. The stability has a considerable impact on the reproducibility of measured values. The display of the measured parameter flashes until a stable measured value is available.

  • Page 63: Settings For Orp Measurements

    Multi 3430 Operation 4.8.3 Settings for ORP measurements Overview The following settings are possible for ORP measurements:  Resolution  Automatic stability control Settings The settings are made in the menu for measuring settings of the ORP measurement. To open the settings, display the required parameter in the measured value display and press the <MENU/ENTER>...

  • Page 64: Dissolved Oxygen

    Multi 3430 Operation Dissolved oxygen 4.9.1 General information You can measure the following parameters:  D.O. concentration  D.O. saturation index ("D.O. saturation")  D.O. partial pressure Note The sensor connection and the USB-B (device) interface are galvani- cally isolated. This facilitates interference-free measurements also in the following cases: ...

  • Page 65: Measuring

    Multi 3430 Operation 4.9.2 Measuring Perform the preparatory activities according to section 4.10.1. Immerse the D.O. sensor in the test sample. Info 15.03.2014 08:00 Selecting the You can switch between the following displays with <M>: displayed  D.O. concentration [mg/l] measured parameter ...
  • Page 66 Multi 3430 Operation Note If the HOLD function is active, you can, e.g. start a manual measure- ment with stability control. Release the frozen measured value again with <AR>. The HOLD function is switched off. The [HOLD] status display disappears. Stability control The stability control function (AutoRead) continually checks the stability (AutoRead )

  • Page 67: Settings For D.o. Sensors (Menu Or Measurement And Calibration Settings)

    Multi 3430 Operation Criteria for a stable The Stability control function checks whether the measured values are measured value stable within the monitored time interval. Measured Time interval Stability in the time interval parameter Δ D.O. concen- 20 seconds : Better than 0.03 mg/l tration Δ...
  • Page 68 Multi 3430 Operation Menu item Possible Description setting Calibration / Outputs the calibration data storage Calibration data to a connected USB flash drive/USB storage / Output printer to USB flash drive or printer Calibration / Outputs the calibration data storage Calibration data to the interface storage / Output...
  • Page 69 Multi 3430 Operation Menu item Possible Description setting Response time 30 ... 300 Response time of the signal filter (in seconds). A signal filter in the sensor reduces the fluctuation range of the measured value. The signal filter is character- ized by the response time t90.

  • Page 70: Check Procedure (Check Of The Fdo ® 925)

    Multi 3430 Operation ® ® 4.9.4 FDO Check procedure (check of the FDO 925) ® Why should you check With the FDO Check procedure, you can find out in a simple manner ® whether the FDO the sensor? 925 D.O. sensor should be cleaned or calibrated. When should you check Checking can be useful in the following cases: the sensor?
  • Page 71 Multi 3430 Operation Start the measurement with <MENU/ENTER>. The measured value is checked for stability (stability control). The [AR] status indicator is displayed. The measured parame- ter flashes. Wait for the AutoRead measurement to be completed ([HOLD][AR]) display or accept the measured value with <MENU/ENTER>. The measured value is frozen.

  • Page 72: Calibration

    Multi 3430 Operation 4.9.5 D.O. calibration Why calibrate? D.O. sensors age. This changes the slope of the D.O. sensor. Calibra- tion determines the current slope of the sensor and stores this value in the instrument. Note ® The FDO 925 D.O. sensor ages so little it does not have to be regu- larly calibrated.
  • Page 73 Multi 3430 Operation Calibration evaluation of Display Calibration record Relative slope ® the FDO S = 0.94 ... 1.06 S = 0.92 ... 0.94 or S = 1.06 ... 1.08 S = 0.90 ... 0.92 or S = 1.08 ... 1.10 S <...
  • Page 74 Multi 3430 Operation Start the measurement with <MENU/ENTER>. The measured value is checked for stability (stability control). The [AR] status indicator is displayed. The measured parame- ter flashes. Wait for the AutoRead measurement to be completed ([HOLD][AR]) display or accept the calibration value with <MENU/ENTER>. The calibration record is displayed and output to the interface.

  • Page 75: Displaying Calibration Records

    Multi 3430 Operation 4.9.6 Displaying calibration records The calibration data can be displayed and then output to the interface. Displaying the The calibration record of the last calibration is available under the menu calibration record item, Calibration / Calibration record. To open it in the measured value display, press the <CAL >...

  • Page 76: Conductivity

    Multi 3430 Operation 4.10 Conductivity 4.10.1 General information You can measure the following parameters:  Conductivity  Specific resistance  Salinity  Total dissolved solids (TDS) Note The sensor connection and the USB-B (device) interface are galvani- cally isolated. This facilitates interference-free measurements also in the following cases: ...
  • Page 77 Multi 3430 Operation Info 15.03.2014 08:00 Selecting the You can switch between the following displays with <M>: displayed  Conductivity [μS/cm] / [mS/cm] measured parameter  Resistivity [Ω·cm] / [kΩ·cm] / [MΩ·cm]  Salinity SaL [ ]  Total dissolved solids TDS [mg/l] / [g/l] The factor to calculate the total dissolved solids is set to 1.00 in the fac- tory.
  • Page 78 Multi 3430 Operation Freeze the measured value with <AR>. The [HOLD] status indicator is displayed. Using <MENU/ENTER>, activate the Stability control function manually. The [AR] status indicator appears while the measured value is assessed as not stable. A progress bar is displayed and the display of the measured parameter flashes.

  • Page 79: Temperature Compensation

    Multi 3430 Operation 4.10.3 Temperature compensation The calculation of the temperature compensation is based on the pre- set reference temperature, 20 °C or 25 °C. It appears on the display as Tr20 or Tr25. You can select one of the following temperature compensation meth- ods: ...

  • Page 80: Settings For Ids Conductivity Sensors

    Multi 3430 Operation 4.10.4 Settings for IDS conductivity sensors Overview The following settings are possible for IDS conductivity sensors:  Calibration record (display)  Calibration data storage (display)  Calibration interval  Reference temperature  Temperature compensation  TDS factor ...
  • Page 81 Multi 3430 Operation Menu item Possible Description setting Type Measuring cell used Measuring cells whose cell con- stant is determined by calibration in the KCL control standard solu- tion. Calibration range: 0.450 to 0.500 cm The currently valid cell constant is displayed in the status line.
  • Page 82 Multi 3430 Operation Setting menu of Menu item Possible set- Description LR 925/01 ting Cell constant 0.090 ..The cell constant can be dis- 0.100 ... played and set here 0.110 cm Temp. comp. (TC) / Procedure for temperature Method compensation (see section 4.10.3).

  • Page 83: Determining The Cell Constant (Calibration In Control Standard)

    Multi 3430 Operation 4.10.5 Determining the cell constant (calibration in control standard) Why determine the cell Aging slightly changes the cell constant, e. g. due to coatings. As a constant? result, an inexact measured value is displayed. The original character- istics of the cell can often be restored by cleaning the cell.
  • Page 84 Multi 3430 Operation Display Calibration Cell constant [cm record Outside the range Error Error 0.450 ... 0.500 cm Eliminate the error according to chapter 6 W HAT TO DO IF Determining the cell For this calibration procedure, the Type setting must be set to cal . Pro- constant ceed as follows to determine the cell constant: Connect an IDS conductivity sensor to the meter.

  • Page 85: Displaying Calibration Records

    Multi 3430 Operation 4.10.6 Displaying calibration records The calibration data can be displayed and then output to the interface. Displaying the The calibration record of the last calibration is to be found under the calibration record menu item, Calibration / Calibration record. To open it in the measured value display, press the <CAL >...

  • Page 86: Turbidity Measurement (Visoturb ® 900-P)

    Multi 3430 Operation ® 4.11 Turbidity measurement (VisoTurb 900-P) 4.11.1 General information Measured parameters You can measure the following parameters:  FNU  NTU Note The sensor connection and the USB-B (device) interface are galvani- cally isolated. This facilitates interference-free measurements also in grounded measuring media.

  • Page 87: Measuring

    Multi 3430 Operation Note To position the sensor optimally and permanently while it is measuring, fix it on a support. 4.11.2 Measuring You can carry out turbidity measurements as follows: Perform the preparatory activities according to section 4.11.1. Immerse the sensor in the test sample at an angle and then position it in the measuring vessel (see section 4.11.1).

  • Page 88: Settings For Turbidity Sensors

    Multi 3430 Operation parameter flashes until a stable measured value is available. Irrespective of the setting for automatic Stability control (see section 4.4.3) in the System menu, you can start the Stability control function manually at any time. Freeze the measured value with <AR>. The [HOLD] status indicator is displayed.

  • Page 89: Calibration

    Multi 3430 Operation Settings The settings are made in the menu for the measured parameter, turbid- ity. To open the settings, display the required measured parameter in the measured value display and press the <MENU/ENTER> key. After completing the settings, switch to the measured value display with <M>.
  • Page 90 Multi 3430 Operation Calibration standards Calibrate with 1 to 3 turbidity standard solutions. The standard solu- tions must be selected in the following order. Standard solution Range (FNU/NTU) 0.0 ... 1.0 5.0 ... 200.0 200.0 ... 4000.0 The turbidity expected in the measurement dictates the number and selection of the standards.
  • Page 91 Multi 3430 Operation In the measured value display, select the TRB measuring win- dow with <> <> and <M>. Start the calibration with <CAL>. The calibration display appears. Standard 0.0 FNU 15.09.2014 08:00 Thoroughly rinse the turbidity sensor with distilled water and dry it with a lint-free cloth.

  • Page 92: Calibration Data

    Multi 3430 Operation Immerse the turbidity sensor in the test sample at an angle. Position the turbidity sensor in the measuring vessel (see sec- tion 4.11.1). Use <> <> and <><> to set the concentration of the standard solution for each digit and confirm with <MENU/ ENTER>.
  • Page 93 Multi 3430 Operation Menu item Setting/ Explanation function Calibration / Displays the calibration Calibration data record. storage / Display Further options:  Scroll through the cali- bration records with <><>.  Output the displayed cal- ibration record to the interface with <PRT>. ...

  • Page 94: Depth Of Immersion (Mpp 9X0 Ids Multi Parameter Probe)

    Multi 3430 Operation Calibration record Multi 3430 (example) Ser. no. 12345678 CALIBRATION TRB: VisoTurb 900-P Ser. no. 14E999003 18.09.2014 08:09:10 0.0 FNU 124.0 FNU Sensor _____________________________________ 4.12 Depth of immersion (MPP 9x0 IDS multi parameter probe) 4.12.1 General information The multi parameter probes of the MPP 9x0 IDS series and the respec- tive IDS sensors of the XXX-P series enhance your Multi 3430 meter by the display of the parameter, depth of immersion (DPT).
  • Page 95 Multi 3430 Operation  With an MPP 930 equipped with the maximum number of IDS sen- Special features of the MPP 9x0 IDS multi sors of the XXX-P series (3), the setting menu for the parameter, parameter probes depth of immersion, is only available from the single display of the measured parameter (<F2>...
  • Page 96 Multi 3430 Operation Connect the IDS sensors of the XXX-P series. Close any open plug-in positions on the MPP 9x0 IDS with blind plugs. Connect the MPP 9x0 IDS multi parameter probe to the meter. The depth of immersion is shown on the display. ba75865e19 04/2015...

  • Page 97: Measuring

    Multi 3430 Operation 4.12.2 Measuring Measure the depth of immersion as follows: Carry out the preparatory activities according to section 4.12.1. Immerse the multi parameter probe in the test sample. Info 30.09.2012 08:00 Display of the depth of immersion as the main measured parameter Info 30.09.2012 08:00 Display of the depth of immersion as the secondary measured parameter...
  • Page 98 Multi 3430 Operation Note While the HOLD function is active, you can for example start a manual measurement with stability control. Release the frozen measured value again with <AR>. The HOLD function is switched off. The [HOLD] status indicator disappears. Stability control The stability control function (AutoRead) continuously checks the sta- (AutoRead )

  • Page 99: Settings

    Multi 3430 Operation Measured parameter Time interval Stability during the time interval Δ Depth of immersion DPT 10 seconds : better than 0.20 m The minimum duration until a measured value is assessed as stable is the monitored time interval. The actual duration is mostly longer. 4.12.3 Settings Settings The settings are in the menu for the measured parameter DPT.

  • Page 100: Calibration

    Multi 3430 Operation 4.12.4 Calibration The MPP 9x0 IDS multi parameter probe is calibration-free. The IDS sensors of the XXX-P series have to be calibrated directly on the meter (see section 4.12.5). Calibrating on the MPP 9x0 IDS multi parameter probe is not possible. 4.12.5 What to do if ...
  • Page 101 Multi 3430 Operation Connect an IDS sensor of the XXX-P series directly to the meter with a cable. Carry out the function:  Calibrate the IDS sensor (see section for measured param- eter)  Reset the IDS sensor (see section for measured parameter) ...

  • Page 102: Data Storage

    Multi 3430 Operation 4.13 Data storage You can transmit measured values (datasets) to the data storage:  Manual storage (see section 4.13.1)  Automatic storage at intervals (see section 4.13.2) Each storage process transmits the current dataset to the interface at the same time.

  • Page 103: Manual Storage

    Multi 3430 Operation 4.13.1 Manual storage You can transmit a measurement dataset to the data storage as fol- lows. The dataset is at the same time output to the interface: Press the <STO> key shortly. The menu for manual storage appears. Manual data storage 4 From 500 15.03.2014 11:24:16 pH 7.000...
  • Page 104 Multi 3430 Operation Automatic data storage ID number Set entire storing dura- Interval 30 s tion Duration 180 min continue Max. available storing 0d03h00min duration 1d17h33min 15.03.2014 08:00 Graphical display of the storage usage Settings You can configure the automatic storage function with the following set- tings: Menu item Possible...
  • Page 105 Multi 3430 Operation Remaining storage duration Graphical display of the storage duration 0d03h00min 15.03.2014 08:00 The active automatic storage function can be recognized by the prog- ress bar in the status line. The progress bar indicates the remaining storing duration. Note If the automatic storage function is activated, only the following keys are active: <M>, <STO...

  • Page 106: Editing The Measurement Data Storage

    Multi 3430 Operation 4.13.3 Editing the measurement data storage The contents of the manual or automatic measurement data storage can be shown on the display. Each of the measurement data storages has a function to erase the entire contents. Editing the data storage The storage is edited in the menu, Storage &...

  • Page 107: Erasing The Measurement Data Storage

    Multi 3430 Operation Display presentation Manual data storage 3 of 64 of a dataset 15.03.2014 11:24:16 ID number: 1 SenTix 940 B20234008565 pH 7.000 24.8 °C AR Sensor: +++ 15.03.2014 08:00 Sample printout 15.03.2014 09:56:20 Multi 3430 Ser. no. 09250023 SenTix 940 Ser.

  • Page 108: Transmitting Data

    Multi 3430 Operation 4.14 Transmitting data 4.14.1 USB interfaces The meter has the following interfaces:  USB-B interface (USB Device) e.g. to connect a PC  USB-A interface (USB Host), e.g. to connect a USB flash drive or a Via the USB-B interface (USB Device) you can transmit data to a PC or printer and update the meter software.

  • Page 109: Connecting A Usb Memory Device/Usb Printer (Usb-A Interface (Usb Host))

    Multi 3430 Operation 4.14.3 Connecting a USB memory device/USB printer (USB-A interface (USB Host)) Connect the USB-A interface (USB Host) of the Multi 3430 to a USB flash drive/USB printer. Connect a USB memory device/USB printer to the USB Host interface.

  • Page 110: Data Transmission To The Usb-A Interface

    Multi 3430 Operation  With <PRT> Current Manual measured values  Simultaneously with every of all connected manual storage process sensors (see section 4.13.1)  With <PRT Automatic, at >. intervals Then you can set the trans- mission interval  Simultaneously with every automatic storage process (see section 4.13.2) ...

  • Page 111: Multilab Importer

    Multi 3430 Operation Data Control Operation / description Stored measured Manual All datasets with the Output to values RS232/USB function. For details, see section 4.13.3. Calibration data Manual All stored calibration records of storage a sensor with the Output to USB flash drive or printer function.
  • Page 112 Multi 3430 Operation Setting Default settings Buffer AutoCalTEC Cal. interval Unit for slope mV/pH Measured parameter pH resolution 0.001 mV resolution Asymmetry 0 mV Slope -59.2 mV Man. temperature 25 °C Single-point calibration The sensor settings are reset under the Reset menu item in the menu for calibration and measurement settings.
  • Page 113 Multi 3430 Operation Setting Default settings Salinity (function) The sensor settings are reset under the Reset menu item in the menu for calibration and measurement settings. To open the settings, display the required parameter in the measured value display and press the <MENU/ENTER>...

  • Page 114: Resetting The System Settings

    Multi 3430 Operation 4.16.2 Resetting the system settings The following system settings can be reset to the default condition: Setting Default settings Language English Acoustic signal Volume Baud rate 4800 Baud Output format ASCII Decimal separator Brightness Illumination Auto Switchoff time Temperature unit °C USB Host...

  • Page 115: Maintenance, Cleaning, Disposal

    Multi 3430 Maintenance, cleaning, disposal Maintenance, cleaning, disposal Maintenance The only maintenance activity required is replacing the batteries. Note See the relevant operating manuals of the IDS sensors for instructions on maintenance. 5.1.1 Replacing the rechargeable batteries Unscrew the two screws (1) on the underside of the meter. Open the battery compartment (2) on the underside of the meter.

  • Page 116: Cleaning

    Multi 3430 Maintenance, cleaning, disposal country. End users within the European Union are obligated to return used bat- teries (even ecologically compatible ones) to a collection point set up for recycling purposes. Batteries are marked with the crossed-out waste container symbol.

  • Page 117: What To Do If

    Multi 3430 What to do if... What to do if... General information Sensor symbol flashes Cause Remedy – Calibration interval expired – Recalibrate the measuring system Cause Remedy – Batteries almost empty – Charge the batteries (see section 3.3.2 C ONNECTING THE POWER PACK CHARGING...
  • Page 118 Multi 3430 What to do if... Data transmission to Cause Remedy USB memory device does not work – Connected USB memory device – Use other USB memory has not been recognized, e. g. device – the USB memory device has –...
  • Page 119 Multi 3430 What to do if... Error message, Cause Remedy Memory error 1 – Instrument storage was not – Please contact the service. found ba75865e19 04/2015...
  • Page 120 Multi 3430 What to do if... Error message, OFL, UFL Cause Remedy IDS pH sensor: – Measured value outside the – Use suitable IDS pH sensor measuring range – Air bubble in front of the junction – Remove air bubble –...

  • Page 121: Dissolved Oxygen

    Multi 3430 What to do if... No stable measured Cause Remedy value IDS pH sensor: – Junction contaminated – Clean junction – Membrane contaminated – Clean membrane Test sample: – pH value not stable – Measure with air excluded if necessary –...

  • Page 122: Conductivity

    Multi 3430 What to do if... Error message, Cause Remedy Error – Sensor contaminated – Clean the sensor – Measured temperature outside – Observe the temperature the operating conditions range for the measuring (OFL/UFL displayed instead of medium temperature value) –...

  • Page 123: Turbidity

    Multi 3430 What to do if... Turbidity Implausible turbidity values Cause Remedy – There are gas bubbles (e.g. air – Remove the gas bubbles, bubbles) in front of the measure- e.g. by immersing the sen- ment window sor at an angle –...
  • Page 124 Multi 3430 What to do if... ba75865e19 04/2015...

  • Page 125: Technical Data

    Multi 3430 Technical data Technical data General data Dimensions Approx. 180 x 80 x 55 mm Weight Approx. 0.4 kg Mechanical structure Type of protection IP 67 Electrical safety Protective class Test certificates CE, cETLus Ambient Storage - 25 °C ... + 65 °C conditions Operation -10 °C ...

  • Page 126: Measuring Ranges, Resolution, Accuracy

    Multi 3430 Technical data USB interface (host) Type USB 2.0 USB-A (host), USB device Applicable directives EC directive 2004/108/EC and standards EN 61326-1 EN 61000-3-2 EN 61000-3-3 FCC Class A Meter safety EC directive 2006/95/EC EN 61010-1 IP protection class EN 60529 Measuring ranges, resolution, accuracy Measuring ranges,...

  • Page 127: Lists

    Multi 3430 Lists Lists This chapter provides additional information and orientation aids. Specialist terms The glossary briefly explains the meaning of the specialist terms. How- ever, terms that should already be familiar to the target group are not described here. Index The index will help you to find the topics that you are looking for.
  • Page 128 Multi 3430 Lists Oxygen saturation Short name for "Relative D.O. saturation". pH value The pH value is a measure of the acidic or basic effect of an aqueous solution. It corresponds to the negative decadic logarithm of the molal hydrogen ions activity divided by the unit of the molality. The practical pH value is the value of a pH measurement.
  • Page 129 Multi 3430 Lists Index Air calibration beaker ....68 Firmware update ....107 Authorized use .
  • Page 130 Lists Multi 3430 Setting the date ..... 23 Setting the time ..... 23 Single-point calibration pH .

  • Page 131: Appendix: Firmware Update

    Multi 3430 Appendix: Firmware update Appendix: Firmware update With the Multi 3430 you can update the firmware of your meter and IDS sensors. Firmware update for the meter Multi 3430 General information Available firmware updates for the meter are provided on the Internet. With the "Firmware Update "...
  • Page 132 Multi 3430 Appendix: Firmware update Firmware-Update for IDS Sensors General information Available firmware updates for IDS sensors are provided on the Inter- net. With the "Firmware Update" program and a PC you can update the firmware of an IDS sensor to the newest version. For updating, connect the IDS sensor to the Multi 3430, and the Multi 3430 to a PC.
  • Page 134 150 countries, we have strong, long-standing relationships with customers who know us for our powerful combination of leading product brands and applications expertise, backed by a legacy of innovation. For more information on how Xylem can help you, go to www.xyleminc.com Wissenschaftlich-Technische Werkstätten GmbH Dr.-Karl-Slevogt-Straße 1...

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