wtw Multi 3430 Operating Manual
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wtw Multi 3430 Operating Manual

Digital ph / d.o. / conductivity meter for 3 digital ids sensors
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Operating manual
Multi 3430
Digital pH / D.O. /
conductivity meter
for 3 digital IDS sensors
ba75865e08
06/2010

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  • Page 1 Operating manual Multi 3430 Digital pH / D.O. / conductivity meter for 3 digital IDS sensors ba75865e08 06/2010...
  • Page 2 © Copyright Weilheim 2010, WTW GmbH Reproduction in whole - or even in part - is prohibited without the express writ- ten permission of WTW GmbH, Weilheim. Printed in Germany. ba75865e08 06/2010...

  • Page 3: Table Of Contents

    Contents Multi 3430 - Contents Overview ........7 Keypad .
  • Page 4 Contents Multi 3430 pH value........36 4.6.1...
  • Page 5 Appendix: Firmware update....111 Firmware update for the meter Multi 3430 ..111 Firmware-Update for IDS Sensors .
  • Page 6 Contents Multi 3430 ba75865e08 06/2010...

  • Page 7: Overview

    (D.O.) measurements quickly and reliably. The Multi 3430 provides the maximum degree of operating comfort, reliability and measuring certainty for all applications. The Multi 3430 supports you in your work with the following functions: proven calibration procedures automatic stability control (AR),...

  • Page 8: Keypad

    Overview Multi 3430 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 MENU MENU ENTER ENTER Multi 3430 In this operating manual, keys are indicated by brackets <..> .

  • 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 <...
  • Page 10 Overview Multi 3430 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)

  • Page 11: Socket Field

    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). WTW IDS sensors and IDS adapters meet these requirements. ba75865e08 06/2010...

  • Page 12: Automatic Sensor Recognition

    To be able to use the automatic sensor recognition, a meter that sup- ports the automatic sensor recognition (e.g. Multi 3430) and a digital IDS sensor are required. In digital IDS sensors, sensor data are stored that clearly identify the sensor.

  • Page 13: Ids Adapter For Analog Sensors

    IDS adapter for analog sensors With the aid of an IDS adapter, you can also operate analog sensors on the Multi 3430. An IDS adapter and analog sensor together behave like an IDS sensor. The measuring electronics with the stored adapter data are in the adapter head.
  • Page 14 Overview Multi 3430 ba75865e08 06/2010...

  • 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

    Safety Multi 3430 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...
  • Page 17 Safety datasheets of the chemical manufacturers. CAUTION In addition to the safety instructions mentioned here, also follow the safety instructions of the sensors used. The operating manuals of the sensors are available on the sup- plied CD and on the Internet under www.WTW.com. ba75865e08 06/2010...
  • Page 18 Safety Multi 3430 ba75865e08 06/2010...

  • Page 19: Commissioning

    Detailed operating manual (4 languages) CD-ROM Power supply The Multi 3430 is supplied with power in the following ways: Battery operation with NiMh rechargeable batteries Mains operation with the supplied power pack. The NiMh rechargeable batteries are automatically charged while the power pack is connected.

  • Page 20: Connecting The Power Pack / Charging The Batteries

    Commissioning Multi 3430 Place four rechargeable batteries (type Mignon AA) in the bat- tery compartment. CAUTION Make sure that the poles of the rechargeable batteries are posi- tioned correctly. ± ± signs on the batteries must correspond to the signs in the battery compartment.

  • Page 21: Switching On The Meter

    Multi 3430 Commissioning Connect the plug of the power pack to the socket for the power pack on the Multi 3430. Connect the original power pack to an easily accessible power outlet. During mains operation, one of the following symbols is displayed: Mains operation with charge function Batteries are automatically charged in the background.

  • Page 22: Setting The Date And Time

    Commissioning Multi 3430 3.3.4 Setting the date and time See section 4.2.5 ba75865e08 06/2010...

  • Page 23: Operation

    Multi 3430 Operation Operation Switching on the meter Switching on Press the <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.

  • Page 24: General Operating Principles

    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 4.2.1 and section 4.2.3. 4.2.1 Operating modes...

  • Page 25: Display Of Several Sensors In Measuring Mode

    Multi 3430 Operation 4.2.2 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 26: Navigation

    Operation Multi 3430 4.2.3 Navigation Measured value display In the measured value display, you can use < >< > to select one of several connected sensors. The selected sensor is displayed with a colored background. The following actions / menus refer to the selected sensor open the menu for calibration and measurement settings with <MENU/ENTER>...
  • Page 27 Multi 3430 Operation General Language: Deutsch Acoustic signal: Volume Illumination: Brightness: Switchoff time: Temperature unit: °C Stability control 22.09.2009 08:00 Functions Functions are designated by the name of the function. They are immediately carried out by confirming with <MENU/ENTER>. Exam- ple: Display the Calibration record function.

  • Page 28: Example 1 On Navigation: Setting The Language

    Operation Multi 3430 4.2.4 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 30.09.2009 08:00 Open the Storage & config menu with <MENU/ENTER >. The instrument is in the setting mode.
  • Page 29 Multi 3430 Operation System General Interface Clock function Service information Reset 22.09.2009 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:...

  • Page 30: Example 2 On Navigation: Setting The Date And Time

    Operation Multi 3430 Select the required language with < >< >. Confirm the setting with <MENU/ENTER>. The meter switches to the measuring mode. The selected language is active. 4.2.5 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 31 Multi 3430 Operation Clock function Date format: dd.mm.yy Date: 30.09.2009 Time: 14:53:40 22.09.2009 08:00 Select and confirm the Time menu with < >< > and <MENU/ ENTER>. The hours are highlighted. Change and confirm the setting with < >< > and <MENU/ ENTER>.

  • Page 32: Sensor-Independent Settings

    Operation Multi 3430 Sensor-independent settings The Storage & config menu includes the following settings: System (see section 4.3.1). Data storage (see section 4.3.2) 4.3.1 System Overview The following sensor-independent meter characteristics can be adjusted in the Storage & config/System menu:...
  • Page 33 Multi 3430 Operation Menu item Setting Description System / General / Temperature °C Temperature unit, unit °F degrees Celsius or degrees Fahrenheit. All temperatures are displayed with the selected unit. System / General / Stability control Switches on or off the auto-...

  • Page 34: Data Storage

    This menu contains all functions to display, edit and erase stored mea- sured values. Note Detailed information on the storage functions of the Multi 3430 is given in section 4.10. 4.3.3 Automatic Stability control The automatic Stability control (AutoRead) function continuously checks the stability of the measurement signal.

  • Page 35: Channel Display

    Unit for slope mV/pH QSC: 30.09.2009 08:00 Channel display The Multi 3430 manages the connected sensors and displays which sensor is plugged to which connection. Channel display Display of the plug position for the respective parameter The red bar indicates for...

  • Page 36: Ph Value

    This facilitates interference-free measurements also in the following cases: Measurement in grounded test samples Measurement in one test sample with several sensors connected to one Multi 3430 Temperature For reproducible pH measurements, it is essential to measure the tem- measurement perature of the test sample.

  • Page 37: Measuring The Ph Value

    Multi 3430 Operation 4.6.2 Measuring the pH value Perform the preparatory activities according to section 4.6.1. Immerse the IDS pH sensor in the test sample. Info 30.09.2009 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 38 Operation Multi 3430 Note You can prematurely terminate the Stability control function manually with <MENU/ENTER> at any time. If the Stability control function is pre- maturely terminated, the current measurement data are output to the interface without the AutoRead info.

  • Page 39: Settings For Ph Measurements

    Multi 3430 Operation 4.6.3 Settings for pH measurements Overview The following settings are possible for pH measurements: Calibration record (display) Calibration data storage (display) Calibration interval Buffers for calibration Single-point calibration Unit for slope Resolution Settings The settings are made in the menu for calibration and measurement settings of the pH/ORP measurement.
  • Page 40 Operation Multi 3430 Menu item Possible set- Description ting Calibration /Unit for mV/pH Unit of the slope. slope The % display refers to the Nernst slope of -59.2 mV/pH (100 x deter- mined slope/Nernst slope). QSC /First calibra- Starts the initial calibration tion with QSC buffers.
  • Page 41 Multi 3430 Operation Menu item Possible set- Description ting ▭▭▬ Temperature from Selects the channel (sen- channel sor), that provides the ▭▬▭ measured temperature ▬▭▭ value. This menu item is only available if an IDS adapter and two IDS sensors with temperature sensor are connected.

  • Page 42: Ph Calibration

    Operation Multi 3430 4.6.4 pH calibration Why calibrate? During the operation of an IDS pH sensor, the zero point (asymmetry) slope of the sensor change with time.As a result, an inexact measured value is displayed. Calibration determines the current values of the zero point and slope of the pH sensor and stores them in the measuring instrument.
  • Page 43 Multi 3430 Operation Buffer set * pH values Merck 5 * 4.010 25 °C 7.000 10.000 DIN 19267 1.090 25 °C 4.650 6.790 9.230 Mettler Toledo US * 1.679 25 °C 4.003 7.002 10.013 Mettler Toledo EU * 1.995 25 °C 4.005...
  • Page 44 Operation Multi 3430 Buffer set * pH values Reagecon TEC * 2.000 25 °C 4.010 7.000 10.000 Reagecon 20 * 2.000 20°C 4.000 7.000 10.000 13.000 Reagecon 25 * 2.000 25 °C 4.000 7.000 10.000 13.000 Riedel-de Haen * 2.000 20°C...
  • Page 45 Multi 3430 Operation Calibration points Calibration can be performed using one to five buffer solutions in any order (single-point to five-point calibration). The meter determines the following values and calculates the calibration line as follows: Determined Displayed calibration data values...
  • Page 46 Operation Multi 3430 Sample record Multi 3430 Ser. no. 09250023 CALIBRATION pH Calibration date 31.07.2009 16:13:33 SenTix 940 Ser. no. B092500013 Buffer 1 4.01 Buffer 2 7.00 Buffer 3 10.01 Voltage 1 184.0 mV 24.0 °C Voltage 2 3.0 mV 24.0 °C...

  • Page 47: Calibration Interval

    Multi 3430 Operation Preparatory activities Perform the following preparatory activities when you want to calibrate: Connect the IDS pH sensor to the meter. The pH measuring window is displayed. Keep the buffer solutions ready. 4.6.5 Calibration interval The calibration evaluation is displayed as a sensor symbol.

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

    Operation Multi 3430 4.6.6 Carrying out an automatic calibration (AutoCal) Make sure that in the sensor menu, Buffer menu, the buffer set is cor- rectly selected (see section 4.6.3). Use any one to five buffer solutions of the selected buffer set in ascend- ing or descending order.
  • Page 49 Multi 3430 Operation 30.09.2009 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. 30.09.2009 08:00 If necessary, finish the calibration procedure as a single-point calibration with <M>.
  • Page 50 Operation Multi 3430 30.09.2009 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. 30.09.2009 08:00 Finish the calibration procedure as a two-point calibration with <M>.
  • Page 51 Multi 3430 Operation 30.09.2009 08:00 Use <M> to finish the calibration. The calibration record is displayed. Switch to calibration with the next buffer with <MENU/ ENTER>. Note Calibration is automatically completed after the last buffer of a buffer set has been measured. Then the calibration record is displayed.

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

    Operation Multi 3430 4.6.7 Carrying out a manual calibration (ConCal) Single-point calibration Use any buffer solution for this rapid method. The calibration will be the more exact the nearer the pH value of the buffer solution is to that of the test sample.
  • Page 53 Multi 3430 Operation 30.09.2009 08:00 Wait for the measurement with stability control to be com- pleted. Set the nominal buffer value for the measured temperature with < >< >. Take over the calibration value for the asymmetry with <MENU/ ENTER>.

  • Page 54: Displaying Calibration Records

    Operation Multi 3430 Continuing with two- Thoroughly rinse the IDS pH sensor with distilled water. point calibration Immerse the IDS pH sensor in buffer solution 2. Start the measurement with <MENU/ENTER>. The measured value is checked for stability (stability control).
  • Page 55 Multi 3430 Operation Menu item Setting/func- Description tion Calibration / Displays the calibration Calibration data stor- records. Further options: Scroll through the cali- bration records with < >< >. Output the displayed calibration record to the interface with <PRT>. Output all calibration records to the interface with <PRT...

  • Page 56: Continuous Measurement Control

    Operation Multi 3430 4.6.9 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 57: Qsc Function (Sensor Quality Control)

    Multi 3430 Operation 4.6.10 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.
  • Page 58 Operation Multi 3430 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 59 Multi 3430 Operation 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 60: Orp Voltage

    This facilitates interference-free measurements also in the following cases: Measurement in grounded test samples Measurement with several sensors connected to one Multi 3430 in one test sample Preparatory activities Perform the following preparatory activities when you want to measure: Connect the IDS ORP sensor to the meter.
  • Page 61 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 62: Settings For Orp Measurements

    Operation Multi 3430 4.7.3 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 63: Dissolved Oxygen

    This facilitates interference-free measurements also in the following cases: Measurement in grounded test samples Measurement in one test sample with several sensors connected to one Multi 3430 Temperature IDS D.O. sensors measure the temperature with a temperature sensor measurement integrated in the IDS sensor.

  • Page 64: Measuring

    Operation Multi 3430 4.8.2 Measuring Perform the preparatory activities according to section 4.9.1. Immerse the D.O. sensor in the test sample. Info 30.09.2009 08:00 Selecting the You can switch between the following displays with <M>: displayed D.O. concentration [mg/l] measured parameter D.O.
  • Page 65 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.
  • Page 66 Operation Multi 3430 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 : better than 0.03 mg/l D.O.

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

    Multi 3430 Operation 4.8.3 Settings for D.O. sensors (menu or measurement and calibration settings) Overview The following settings are possible for D.O. sensors: Calibration record (display) Calibration data storage (display) Calibration interval FDO Check Check interval Salinity correction Salinity (salinity equivalent)
  • Page 68 Operation Multi 3430 Menu item Possible Description setting FDO Check / 1 ... 60 ... 999 Interval for the FDO Check (in Check interval days). The FDO Check status display indicator in the measuring win- dow reminds you to check the sensor regularly.
  • Page 69 Multi 3430 Operation Menu item Possible Description setting Response time t90 30 ... 300 Response time of the signal fil- ter (in seconds). A signal filter in the sensor reduces the fluctuation range of the measured value. The signal filter is characterized by the response time t90.

  • Page 70: Fdo ® Check Procedure

    Operation Multi 3430 ® ® 4.8.4 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 ® the sensor? whether the FDO 925 D.O. sensor should be cleaned or calibrated.
  • Page 71 Multi 3430 Operation 30.03.2010 08:00 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>.

  • Page 72: Calibration

    Operation Multi 3430 4.8.5 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: Displaying Calibration Records

    Operation Multi 3430 30.03.2010 08:00 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>.

  • Page 75: Conductivity

    This facilitates interference-free measurements also in the following cases: Measurement in grounded test samples Measurement in one test sample with several sensors connected to one Multi 3430 Temperature IDS sensors measure the temperature with a temperature sensor inte- measurement grated in the IDS sensor.
  • Page 76 Operation Multi 3430 Info 30.09.2009 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-...
  • Page 77 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 78: Temperature Compensation

    Operation Multi 3430 4.9.3 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-...

  • Page 79: Settings For Ids Conductivity Sensors

    Multi 3430 Operation 4.9.4 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 Unit of the temperature Settings The settings are made in the menu for the measured parameter, con- ductivity.
  • Page 80 Operation Multi 3430 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 81 Multi 3430 Operation Setting menu of Menu item Possible set- Description LR325/01 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 4.9.3).

  • Page 82: Determining The Cell Constant (Calibration In Control Standard)

    Operation Multi 3430 4.9.5 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 83 Multi 3430 Operation Display Calibration Cell constant [cm record Within the range 0.450 ... 0.500 cm 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 .

  • Page 84: Displaying Calibration Records

    Operation Multi 3430 Wait for the measurement with stability control to be completed ([HOLD][AR]) display or accept the calibration value with <MENU/ENTER>. The calibration record is displayed and output to the interface. Switch to the measured value display with <MENU/ENTER>.

  • Page 85: Data Storage

    - 4 levels (+++, ++, +, -, or no evaluation) or - QSC (percentage) Storage locations The Multi 3430 meter has two measurement data memories. The mea- sured values recorded either manually or automatic are stored sepa- rately in individual measurement data memories.

  • Page 86: Manual Storage

    Operation Multi 3430 4.10.1 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.
  • Page 87 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 22.09.2009 08:00 Graphical display of the storage usage Settings You can configure the automatic storage function with the following set-...
  • Page 88 Operation Multi 3430 Remaining storage duration Graphical display of the storage duration 0d03h00min 30.09.2009 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.

  • Page 89: Editing The Measurement Data Storage

    Multi 3430 Operation 4.10.3 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 90: Erasing The Measurement Data Storage

    Operation Multi 3430 Display presentation Manual data storage (500) 3 of 64 of a dataset 30.09.2009 11:24:16 ID number: 1 SenTix 940 B20234008565 pH 7.000 24.8 °C AR Sensor: +++ 22.09.2009 08:00 Sample printout 31.07.2009 09:56:20 Multi 3430 Ser. no. 09250023 SenTix 940 Ser.

  • Page 91: Transmitting Data (Usb Interfaces)

    Via the USB-A interface (USB Host) it is possible to transfer data to an external USB memory device. 4.11.3 Connecting the PC / USB-B interface (USB Device) Connect the Multi 3430 to the PC via the USB-B interface. Installation of the USB System requirements of the PC for installation of the USB driver:...

  • Page 92: Options For Data Transmission To A Pc

    Operation Multi 3430 Set the same transmission data at the connected instrument (PC): Baud rate: to be selected in the range 1200 ... 19200 Handshake: RTS/CTS Set at the PC only: – Parity: none – Data bits: 8 – Stop bits: 1 4.11.4 Options for data transmission to a PC (USB-B interface)

  • Page 93: Connecting The Usb Memory Device / Usb-A Interface (Usb Host)

    Operation 4.11.5 Connecting the USB memory device / USB-A interface (USB Host) Connect the USB-A interface (USB Host) of the Multi 3430 to a USB flash drive. Connect a USB flash drive to the USB Host interface. 4.11.6 Data transmission to a USB memory device...

  • Page 94: Reset

    Operation Multi 3430 4.12 Reset You can reset (initialize) all sensor settings and sensor-independent settings separately from each other. 4.12.1 Resetting the measurement settings Note The calibration data are reset to the default settings together with the measuring parameters. Recalibrate after performing a reset.
  • Page 95 Multi 3430 Operation the required parameter in the measured value display and press the <MENU/ENTER> key. Dissolved oxygen The following settings for D.O. measurements are reset to the default settings with the Reset function: Setting Default settings Cal. interval 180d...

  • Page 96: Resetting The System Settings

    Operation Multi 3430 4.12.2 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...

  • Page 97: 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.

  • Page 98: Cleaning

    Maintenance, cleaning, disposal Multi 3430 Close the battery compartment (2) and tighten the screws (1). Cleaning Occasionally wipe the outside of the measuring instrument with a damp, lint-free cloth. Disinfect the housing with isopropanol as required. CAUTION The housing is made of synthetic material (ABS). Thus, avoid con- tact with acetone or similar detergents that contain solvents.

  • Page 99: 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...
  • Page 100 What to do if... Multi 3430 Cause Remedy Data transmission to USB memory device – Connected USB memory device – Use other USB memory does not work has not been recognized, e. g. device – the USB memory device has –...
  • Page 101 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 102: Dissolved Oxygen

    What to do if... Multi 3430 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 103: 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 104 What to do if... Multi 3430 ba75865e08 06/2010...

  • Page 105: 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 Ambient Storage - 25 °C ... + 65 °C...

  • Page 106: Measuring Ranges, Resolution, Accuracy

    Technical data Multi 3430 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 Climatic class VDI/VDE 3540 IP protection class EN 60529 Measuring ranges, resolution, accuracy Note These data are given in the documentation of your sensor.

  • Page 107: 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.
  • Page 108 Lists Multi 3430 ORP voltage The ORP is caused by oxidizing or reducing substances dissolved in water if these substances become effective on an electrode surface (e. g. a gold or platinum surface). Oxygen saturation Short name for "Relative D.O. saturation".
  • Page 109 Multi 3430 Index Air calibration beaker ....68 Authorized use ..... . 18 Firmware update .
  • Page 110 Index Multi 3430 Scope of delivery ....21 Setting the date ..... 23 Setting the time .

  • Page 111: 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.

  • Page 112: Firmware-Update For Ids Sensors

    USB interface (virtual COM port) on the PC the driver for the USB interface (on the enclosed CD-ROM) the USB cable (included in the scope of delivery of the Multi 3430). Program installation Install the downloaded firmware update on a PC.
  • Page 116 Wissenschaftlich-Technische Werkstätten GmbH Dr.-Karl-Slevogt-Straße 1 D-82362 Weilheim Germany Tel: +49 (0) 881 183-0 +49 (0) 881 183-100 Fax: +49 (0) 881 183-420 E-Mail: Info@WTW.com Internet: http://www.WTW.com...

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