wtw Multi 9310 Operating Manual
  1. Manuals
  2. Brands
  3. wtw Manuals
  4. Measuring Instruments
  5. Multi 9310
  6. Operating manual

wtw Multi 9310 Operating Manual

Digital ph / orp / d.o. / conductivity meter for digital ids sensors
Hide thumbs
Table of Contents

Advertisement

Quick Links

Operating manual
Multi 9310
Multi 9310P
Multi 9310P
Multi 9310
Digital pH / ORP / D.O. /
conductivity meter for digital IDS
sensors
ba75937e03
12/2011

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the Multi 9310 and is the answer not in the manual?

Questions and answers

Related Manuals for wtw Multi 9310

Summary of Contents for wtw Multi 9310

  • Page 1 Operating manual Multi 9310 Multi 9310P Multi 9310P Multi 9310 Digital pH / ORP / D.O. / conductivity meter for digital IDS sensors ba75937e03 12/2011...
  • Page 2 Multi 9310 © Copyright Weilheim 2011, WTW GmbH Reproduction in whole - or even in part - is prohibited without the express written permission of WTW GmbH, Weilheim. Printed in Germany. ba75937e03 12/2011...

  • Page 3: Table Of Contents

    Multi 9310 meter ........
  • Page 4 Contents Multi 9310 4.5.4 Example 1 on navigation: Setting the language ..24 4.5.5 Example 2 on navigation: Setting the date and time . . . 26 pH value......... . 28 Measuring .
  • Page 5 Multi 9310 Contents 8.3.4 Calibration data ....... 60 Settings ......... . 62 pH measurement settings .
  • Page 6 16 Firmware update ........94 16.1 Firmware update for the meter Multi 9310 ....94 16.2 Firmware-Update for IDS Sensors.

  • Page 7: Overview

    Overview Multi 9310 meter The compact, digital precision meter Multi 9310 enables you to carry out pH measurements, ORP measurements, conductivity measurements and dis- solved oxygen (D.O.) measurements quickly and reliably. The Multi 9310 provides the maximum degree of operating comfort, reliability and measuring certainty for all applications.

  • Page 8: Multi 9310P Meter With Integrated Printer

    4 Printer 5 Control panel of the printer Sensors A measuring system ready to measure consists of the Multi 9310 meter and a suitable sensor. Suitable sensors are IDS pH sensors, IDS ORP sensors, IDS conductivity sensors and IDS D.O. sensors.

  • Page 9: Ids Sensors

    Multi 9310 Overview 1.3.1 IDS sensors IDS sensors support the automatic sensor recognition show only the settings relevant to the specific sensor in the setting menu process signals in the sensor digitally so that precise and interference-free measurements are enabled even with long cables...

  • Page 10: Ids Adapter For Analog Sensors

    1.3.2 IDS adapter for analog sensors With the aid of an IDS adapter, you can also operate analog sensors on the Multi 9310. The combination of the IDS adapter and analog sensor behaves like an IDS sensor. The measuring electronics with the stored adapter data are in the adapter head.

  • Page 11: Safety

    Multi 9310 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 meter. Read this operating manual thoroughly and make yourself familiar with the meter before putting it into operation or working with it. The operating manual must be kept in the vicinity of the meter so you can always find the infor- mation you need.

  • Page 12: Safe Operation

    Safety Multi 9310 Safe operation 2.2.1 Authorized use The authorized use of the meter consists exclusively of the measurement of the pH, ORP, conductivity and dissolved oxygen in a laboratory environment. Only the operation and running of the meter according to the instructions and...

  • Page 13: Commissioning

    – software MultiLab User – software MultiLab Importer Power supply The Multi 9310 is supplied with power in the following ways: Mains operation with the supplied power pack Battery operation (4 batteries, 1.5 V Mignon type AA) USB operation via a connected USB-B cable...

  • Page 14: Inserting The Batteries

    Commissioning Multi 9310 3.3.1 Inserting the batteries You can operate the meter either with normal batteries or with rechargeable batteries (Ni-MH). In order to charge the batteries, an external charging device is required. Open the battery compartment (1) on the underside of the meter.

  • Page 15: Connecting The Power Pack

    ENERAL DATA page 92). Connect the plug of the power pack to the socket for the power pack on the Multi 9310. Connect the original power pack to an easily accessible power outlet. 3.3.3 Mounting the stand The stand base can be mounted at the right side of the meter.

  • Page 16: Operation

    Operation Multi 9310 Operation General operating principles 4.1.1 Keypad In this operating manual, keys are indicated by brackets <..>. The key symbol (e.g. <ENTER>) generally indicates a short keystroke (under 2 sec) in this operating manual. A long keystroke (approx. 2 sec) is indicated by the underscore behind the key symbol (e.g.

  • Page 17: Display

    Multi 9310 Operation 4.1.2 Display Example (pH): AutoCal TEC HOLD AR 01.07.2011 USB output Info 08:00 1 Status information (sensor) 2 Measured value 3 Measured parameter 4 Continuous measurement control (CMC function) 5 Sensor symbol (calibration evaluation, calibration interval) 6 Measured temperature (with unit)

  • Page 18: Socket Field

    (> SELV and > current circuit with current limiting). WTW IDS sensors and IDS adapters meet these requirements. 4.1.5 Sensor info You can display the current sensor data and sensor settings of a connected sensor at any time.

  • Page 19: Switching On The Meter

    Multi 9310 Operation SenTix 940 B09250001 01.07.2011 More 08:00 Display further sensor data (settings) with <F1>/[More]. SenTix 940 B092500013 pH resolution 0.001 mV resolution Buffer Calibration interval Unit for slope mV/pH QSC: Software-Version V 1.00 01.07.2011 Back 08:00 Switching on the meter Switch the meter on with <On/Off>.

  • Page 20: Switching Off The Meter

    Operation Multi 9310 If the user administration function is activated, the Login dialog appears after the meter is switched on (see section 4.4 L OGIN WITH , page 20). A USER NAME The user administration function is not active in the delivery condi- tion.
  • Page 21 Multi 9310 Operation The login is done immediately if no password is required. If a sensor is connected the measured value display appears. If a password is required: Using < >< >, select the menu item, Password and confirm with <ENTER>.

  • Page 22: Navigation

    Operation Multi 9310 Navigation 4.5.1 Operating modes Operating Description mode Measuring The measurement data of the connected sensor are shown in the measured value display Calibration The course of a calibration with calibration information, functions and settings is displayed Storing in...
  • Page 23 Multi 9310 Operation System General Interface Clock function Service information Reset 01.07.2011 Back 08:00 Settings Settings are indicated by a colon. The current setting is displayed on the right-hand side. The setting mode is opened with <ENTER>. Subsequently, the setting can be changed with < >< > and <ENTER>. Example:...

  • Page 24: Example 1 On Navigation: Setting The Language

    Operation Multi 9310 Calibration record Calibration data storage Buffer: Single-point calibration: Calibration interval: Unit for slope: mV/pH ] 2.00 4.01 7.00 10.01 01.07.2011 Back 08:00 4.5.4 Example 1 on navigation: Setting the language Press the <On/Off> key. The measured value display appears.
  • Page 25 Multi 9310 Operation System General Interface Clock function Service information Reset 01.07.2011 Back 08:00 Select the General submenu with < >< >. The current selection is displayed with a frame. Open the General submenu with <ENTER>. General Language: Deutsch Acoustic signal:...

  • Page 26: Example 2 On Navigation: Setting The Date And Time

    Operation Multi 9310 4.5.5 Example 2 on navigation: Setting the date and time The meter has a clock with a date function. The date and time are indicated in the status line of the measured value display. When storing measured values and calibrating, the current date and time are automatically stored as well.
  • Page 27 Multi 9310 Operation Change and confirm the setting with < >< > and <ENTER>. The time is set. If necessary, set the Date and Date format. The setting is made similarly to that of the time. To make further settings, switch to the next higher menu level with <F1>/ [Back].

  • Page 28: Ph Value

    Multi 9310 pH value Measuring 5.1.1 Measuring the pH value NOTE When connecting a grounded PC/printer, measurements cannot be performed in grounded media as the values would be incorrect. The USB interface is not galvanically isolated. Connect the IDS pH sensor to the meter.

  • Page 29: Measuring The Temperature

    Multi 9310 pH value You can terminate the Stability control function and the HOLD func- tion with <AR> or <M> at any time. Using <ENTER>, activate the Stability control function manually. The [AR] status indicator appears while the measured value is assessed as not stable.

  • Page 30: Ph Calibration

    Multi 9310 mode: Temperature Resolution of the Temp. measurement sensor temp. display 0.1 °C Automatic with temperature sensor 1 °C Manual pH calibration 5.2.1 Why calibrate? pH electrodes age. This changes the zero point (asymmetry) and slope of the pH electrode.
  • Page 31 Multi 9310 pH value 01.07.2011 08:00 Thoroughly rinse the sensor with deionized water. Immerse the sensor in the first buffer solution. For measurements without temperature sensor (e.g. when using an IDS adapter Measure the temperature of the buffer manually and enter it with <...
  • Page 32 Multi 9310 Immerse the pH sensor in buffer solution 2. When measuring without temperature sensor: Measure the temperature of the buffer manually and enter it with < >< >. Start the measurement with <ENTER>. The measured value is checked for stability (stability control).

  • Page 33: Carrying Out Manual Calibration (Concal)

    Multi 9310 pH value 01.07.2011 08:00 Wait for the measurement with stability control to be completed or ter- minate the stability control and take over the calibration value with <ENTER>. The calibration display for the next buffer appears (voltage display).
  • Page 34 Multi 9310 01.07.2011 08:00 Thoroughly rinse the sensor with deionized water. Immerse the pH sensor in buffer solution 1. For measurements without temperature sensor (e.g. when using an IDS adapter Measure the temperature of the buffer manually and enter it with <...
  • Page 35 Multi 9310 pH value 01.07.2011 08:00 Set the nominal buffer value for the measured temperature with < >< >. Accept the calibration value with <ENTER>. The calibration display for the next buffer appears (voltage display). If necessary, finish the calibration procedure as a single-point calibra- tion with <M>.
  • Page 36 Multi 9310 01.07.2011 08:00 Set the nominal buffer value for the measured temperature with < >< >. Accept the calibration value with <ENTER>. The calibration display for the next buffer appears (voltage display). If necessary, finish the calibration procedure as a two-point calibration with <M>.

  • Page 37: Calibration Points

    Multi 9310 pH value Set the nominal buffer value for the measured temperature with < >< >. Accept the calibration value with <ENTER>. The calibration display for the next buffer appears (voltage display). If necessary, use <M> to finish the calibration.

  • Page 38: Calibration Data

    Multi 9310 5.2.6 Calibration data The calibration record is automatically transmitted to the interface after calibrating. Displaying the The calibration record of the last calibration is to be found under the menu item, calibration data Calibration / Calibration record. To open it in the measured value display, press the <CAL__>...
  • Page 39 Multi 9310 pH value Calibration After calibrating, the meter automatically evaluates the calibration. The zero evaluation point and slope are evaluated separately. The worse evaluation of both is taken into account. The evaluation appears on the display and in the calibration record.

  • Page 40: Continuous Measurement Control (Cmc Function)

    Multi 9310 5.2.7 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 dis- played 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 41: Qsc Function (Sensor Quality Control)

    Multi 9310 pH value 5.2.8 QSC function (sensor quality control) General information The QSC function (Quality Sensor Control) is a new sensor evaluation for on the QSC function digital IDS sensors. It evaluates the condition of an IDS pH sensor individually and with a very fine grading.
  • Page 42 Multi 9310 Carry out the normal calibrations for your special measuring range with your usual standard solutions as previously done. As soon as the QSC function was enabled for an IDS sensor, it is not possible to return to the sensor evaluation with the sensor symbol for this sensor.
  • Page 43 Multi 9310 pH value sor evaluation. 01.07.2011 USB output Info 08:00 1 QSC scale The double arrow on the QSC scale indicates the current sensor evaluation Carrying out a QSC A QSC control calibration can, e.g. be useful if the sensor evaluation noticeably control calibration changed (after some normal calibrations).

  • Page 44: Orp

    Multi 9310 Measuring 6.1.1 Measuring the ORP NOTE When connecting a grounded PC/printer, measurements cannot be performed in grounded media as the values would be incorrect. The USB interface is not galvanically isolated. IDS ORP sensors are not calibrated. However, you can check IDS ORP sensors using a test solution.
  • Page 45 Multi 9310 You can terminate the Stability control function and the HOLD func- tion with <AR> or <M> at any time. Using <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 46: Measuring The Temperature

    Multi 9310 6.1.2 Measuring the temperature For reproducible ORP measurements, it is essential to measure the tempera- ture of the test sample. When operating a sensor without integrated temperature sensor, you first have to measure and enter the temperature of the sample.

  • Page 47: Dissolved Oxygen

    Multi 9310 Dissolved oxygen Dissolved oxygen Measuring 7.1.1 Measuring D.O. NOTE When connecting a grounded PC/printer, measurements cannot be performed in grounded media as the values would be incorrect. The USB interface is not galvanically isolated. Connect the D.O. sensor to the meter.
  • Page 48 Dissolved oxygen Multi 9310 You can switch the salinity correction on or off and enter the salinity in the menu for calibration and measurement settings (see section 9.3.1 S D.O. ETTINGS FOR SENSORS MENU FOR MEASUREMENT AND ), page 66).

  • Page 49: Measuring The Temperature

    Multi 9310 Dissolved oxygen Criteria for a stable The Stability control function checks whether the measured values are stable measured value within the monitored time interval. Measured parame- Time interval Stability in the time interval D.O. concentration 20 seconds ∆ : better than 0.03 mg/l D.O.

  • Page 50: Fdo ® Check Procedure

    Dissolved oxygen Multi 9310 ® check procedure 7.2.1 Why should you check the sensor? ® With the FDO Check procedure, you can find out in a simple manner ® whether the FDO 925 D.O. sensor should be cleaned or calibrated.

  • Page 51: Evaluation

    Multi 9310 Dissolved oxygen [t90= 30 s] 01.07.2011 08:00 Start the measurement with <ENTER>. The measured value is checked for stability (stability control). The [AR] status indicator is displayed. The measured parameter flashes. Wait for the end of the AutoRead measurement ([HOLD][AR]) status indicator or take over the measured value with <ENTER>.

  • Page 52: When To Calibrate

    When the calibration interval has expired When your accuracy requirements are especially high Routinely within the framework of the company quality assurance 7.3.3 Calibration procedures The Multi 9310 provides 2 calibration procedures: Calibration in water vapor-saturated air. ® Use an OxiCal air calibration vessel for calibration.

  • Page 53: Calibration By Means Of A Comparison Meas. (Fdo Comp)

    Multi 9310 Dissolved oxygen 01.07.2011 08:00 Start the measurement with <ENTER>. The measured value is checked for stability (stability control). The [AR] status indicator is displayed. The measured parameter flashes. Wait for the end of the AutoRead measurement ([HOLD][AR]) status indi- cator.

  • Page 54: Calibration Data

    Dissolved oxygen Multi 9310 Start the measurement with <ENTER>. The measured value is checked for stability (stability control). The [AR] status indicator is displayed. The measured parameter flashes. Wait for the end of the AutoRead measurement or accept the calibration value with <ENTER>.
  • Page 55 Multi 9310 Dissolved oxygen Menu item Setting/ Description function Calibration / Displays the calibration records. Calibration data stor- age /Display Further options: Scroll through the calibration records with < >< >. Output the displayed calibra- tion record to the interface with <F2>/[USB output].

  • Page 56: Conductivity

    Conductivity Multi 9310 Conductivity Measuring 8.1.1 Measuring the conductivity NOTE When connecting a grounded PC/printer, measurements cannot be performed in grounded media as the values would be incorrect. The USB interface is not galvanically isolated. Connect the conductivity sensor to the meter.

  • Page 57: Measuring The Temperature

    Multi 9310 Conductivity ting for automatic Stability control (see section 9.5.3 A UTOMATIC TABILITY CON , page 71) in the System menu. TROL Freeze the measured value with <AR>. The [HOLD] status indicator is displayed. The HOLD function is active.

  • Page 58: Temperature Compensation

    Conductivity Multi 9310 temperature of the test sample. IDS sensors measure the temperature with a temperature sensor integrated in the IDS sensor. Temperature compensation The calculation of the temperature compensation is based on the preset refer- ence temperature, 20 °C or 25 °C. It appears on the display as Tr20 or Tr25.

  • Page 59: Calibration

    Multi 9310 Conductivity Calibration 8.3.1 Why calibrate? Aging slightly changes the cell constant, e. g. due to coatings. As a result, an inexact measured value is displayed. The original characteristics of the cell can often be restored by cleaning the cell. Calibration determines the current value of the cell constant and stores this value in the meter.

  • Page 60: Calibration Data

    Conductivity Multi 9310 01.07.2011 08:00 Immerse the conductivity sensor in the control standard solution, 0.01 mol/l KCI. Start the measurement with <ENTER>. The measured value is checked for stability (stability control). The [AR] status indicator is displayed. The measured parameter flashes.
  • Page 61 Multi 9310 Conductivity Menu item Setting/ Description function Calibration / Displays the calibration records. Calibration data storage / Display Further options: Scroll through the calibration records with < >< >. Output the displayed calibration record to the interface with <F2>/ [USB output].

  • Page 62: Settings

    Settings Multi 9310 Settings pH measurement settings 9.1.1 Settings for pH measurements Settings The settings are made in the menu for calibration and measurement settings of the pH/ORP measurement. To open the settings, display the required mea- sured parameter in the measured value display and press the <ENTER> key.

  • Page 63: Buffer Sets For Calibration

    Multi 9310 Settings Menu item Possible Description setting pH resolution 0.001 Resolution of the pH display 0.01 mV resolution Resolution of the mV display Reset Resets all sensor settings to the delivery condition (see sec- tion 9.6.1 R , page 72).
  • Page 64 Settings Multi 9310 Buffer set * pH values DIN 19267 1.090 25 °C 4.650 6.790 9.230 Mettler Toledo USA * 1.679 25 °C 4.003 7.002 10.013 Mettler Toledo EU * 1.995 25 °C 4.005 7.002 9.208 Fisher * 2.007 25 °C 4.002...

  • Page 65: Calibration Interval

    Multi 9310 Settings Buffer set * pH values 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 4,000 7,000 10,000 USABlueBook * 4,000 25 °C...

  • Page 66: Orp Measurement Settings

    Settings Multi 9310 Confirm the setting with <ENTER>. Quit the menu with <M>. ORP measurement settings 9.2.1 Settings for ORP measurements The settings are made in the menu for measuring settings of the ORP measure- ment. To open the settings, display the required measured parameter in the measured value display and press the <ENTER>...
  • Page 67 Multi 9310 Settings Menu item Possible Description setting Calibration /Cali- 1 ... 180 ... Calibration interval for the D.O. sensor bration interval 999 d (in days). The meter reminds you to calibrate regularly by the flashing sensor sym- bol in the measuring screen.

  • Page 68: Cond Measurement Settings

    Settings Multi 9310 Cond measurement settings 9.4.1 Settings for IDS conductivity sensors Settings The settings are made in the menu for the measured parameter, conductivity. To open the settings, display the required measured parameter in the mea- sured value display and press the <ENTER> key. After completing the settings, switch to the measured value display with <M>.
  • Page 69 Multi 9310 Settings Menu item Possible Description setting Temp. comp. (TC) / 0.000 ... Coefficient of the linear temperature Linear coeff. 2.000 ... compensation. 3.000 %/K This menu item is only available when the linear temperature compensation is set. Temp. comp. (TC) / 20 °C...

  • Page 70: Sensor-Independent Settings

    Comma (xx,x) System / Interface / Output of a header for Output format: Output header System / Printer Settings for the integrated printer of the Multi 9310 P. For details, see section 12 P RINTER 9310P), page 83 ONLY ULTI...

  • Page 71: Data Storage

    THE SYSTEM SETTINGS 9.5.2 Data storage This menu contains all functions to display, edit and erase stored measured values. Detailed information on the memory functions of the Multi 9310 are given in section 10 D , page 75. ATA STORAGE 9.5.3 Automatic Stability control...

  • Page 72: Display Illumination

    Settings Multi 9310 9.5.5 Display illumination The meter automatically switches off the display illumination if no key is pressed for 20 seconds. The illumination is switched on with the next keystroke again. You can also generally switch on the display illumination (see section 9.5.1 , page 70).
  • Page 73 Multi 9310 Settings The following settings for ORP measurements are reset to the default settings with the Reset function: Setting Default settings mV resolution Man. temperature 25 °C The sensor settings are reset under the Reset menu item in the menu for cali- bration and measurement settings.

  • Page 74: Resetting The System Settings

    Settings Multi 9310 The sensor settings are reset under the Reset menu item in the menu for cali- bration and measurement settings. To open the settings, display the required measured parameter in the measured value display and press the <ENTER>...

  • Page 75: Data Storage

    Multi 9310 Data storage Data storage You can transmit measured values (datasets) to the data storage: Manual data storage (see section 10.1 M , page 75) ANUAL DATA STORAGE Automatic data storage at intervals (see section 10.2 A UTOMATIC DATA STOR...

  • Page 76: Automatic Data Storage At Intervals

    Data storage Multi 9310 10.2 Automatic data storage at intervals The data storage interval (Interval) determines the time interval between auto- matic data storage processes. Each data storage process transmits the current dataset to the interface at the same time.
  • Page 77 Multi 9310 Data storage Starting the To start the automatic data storage function, select continue with < >< > and automatic data confirm with <ENTER>. The meter switches to the measured value display. storage function 0d03h00min 01.07.2011 08:00 1 Remaining storage duration...

  • Page 78: Measured Value Data Storage

    Data storage Multi 9310 10.3 Measured value data storage 10.3.1 Editing the measured value 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.

  • Page 79: Erasing The Measurement Data Storage

    24.8 °C AR Sensor: +++ 01.07.2011 USB output Back 08:00 Representation of a 01.07.2011 07:43:33 dataset inoLab Multi 9310 (USB output) Ser. no. 09250023 ID number 2 SenTix 940 Ser. no. B092500013 6.012 24.8 °C, AR, S: +++ ________________________________________ 01.07.2011 07:43:53 inoLab Multi 9310 Ser.

  • Page 80: Storage Locations

    - 4 levels (+++, ++, +, -, or no evaluation) or - QSC (percentage) 10.3.4 Storage locations The Multi 9310 meter has two measurement data storages. The measured values recorded either manually or automatic are stored separately in indi- vidual measurement data storages.

  • Page 81: Transmitting Data (Usb Interfaces)

    Via the USB-B interface (USB Device) you can transmit data to a PC or printer and update the meter software. 11.3 Connecting the PC / USB-B interface (USB Device) Connect the Multi 9310 to the PC via the USB-B interface. Installation of the System requirements of the PC for installation of the USB driver:...

  • Page 82: Options For Data Transmission To A Pc

    Transmitting data (USB interfaces) Multi 9310 11.4 Options for data transmission to a PC Via the USB-B interface you can transmit data to a PC. The following table shows which data are transmitted to the interface in which way: Data...

  • Page 83: Printer (Only Multi 9310P)

    4 Lid of the paper compartment 12.1 Commissioning / switching the printer on or off Switching on the Connect the power pack to the Multi 9310 P. printer The LED lights up green. The printer is ready for operation. If the printer was switched off (LED flashing): Switch on the printer with <OFF>.

  • Page 84: Operation / Printing

    Printer (only Multi 9310P) Multi 9310 12.2 Operation / printing Data are only output to the printer if the following conditions are met Data are transmitted manually or automatically (see section 11.4 O PTIONS PC, page 82) FOR DATA TRANSMISSION TO A the printer is switched on (LED illuminated) there is no USB connection.

  • Page 85: What To Do If

    Multi 9310 Printer (only Multi 9310P) Use original WTW rolls of paper only. You will find information on this in the WTW catalog L ABORATORY or on the Internet. IELD NFORMATION The thermal paper will remain legible for at least 7 years if stored appropriately.

  • Page 86: Maintenance, Cleaning, Disposal

    Maintenance, cleaning, disposal Multi 9310 Maintenance, cleaning, disposal 13.1 Maintenance 13.1.1 General maintenance activities The only maintenance activity required is replacing the batteries. See the relevant operating manuals of the IDS sensors for instruc- tions on maintenance. 13.1.2 Replacing the batteries You can operate the meter either with normal batteries or with rechargeable batteries (Ni-MH).

  • Page 87: Cleaning

    Multi 9310 Maintenance, cleaning, disposal Dispose of used batteries according to the local regulations of your country. End users within the European Union are obligated to return used batteries (even ecologically compatible ones) to a collection point set up for recycling purposes.

  • Page 88: What To Do If

    What to do if... Multi 9310 What to do if... 14.1 pH More information and instructions on cleaning and exchange of sensors are given in the documentation of your sensor. Error message Cause Remedy OFL, UFL IDS pH sensor: – Measured value outside the –...

  • Page 89: Dissolved Oxygen

    Multi 9310 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 neces- sary –...

  • Page 90: Conductivity

    What to do if... Multi 9310 Cause Remedy – Measured value outside the – Use a suitable IDS D.O. sensor measuring range Error message, Cause Remedy Error – Sensor contaminated – Clean the sensor – Measured temperature value – Keep to the temperature range for...
  • Page 91 Multi 9310 What to do if... Cause Remedy – Batteries almost empty – Replace the batteries (see section 13.1 M , page 86) AINTENANCE Display Instrument does not Cause Remedy react to keystroke – Operating condition undefined – Processor reset: or EMC load unallowed Press the <ENTER>...

  • Page 92: Technical Data

    Further data are given in the documentation of your sensor. 15.2 General data Dimensions Multi 9310: Approx. 240 x 190 x 80 mm Multi 9310 P: Approx. 290 x 190 x 80 mm Weight Multi 9310: Approx. 0.8 kg Multi 9310 P: Approx.
  • Page 93 Multi 9310 Technical data USB interface (device) Type USB 1.1 USB-B (Device), PC Baud rate Adjustable: 1200, 2400, 4800, 9600, 19200 Baud Data bits Stop bits Parity None Handshake RTS/CTS Cable length Max. 3 m Applicable directives EC directive 2004/108/EC...

  • Page 94: Firmware Update

    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 9310). Install the downloaded firmware update on a PC.

  • Page 95: Firmware-Update For Ids Sensors

    IDS sensor to the newest version. You can find available firmware update files for your IDS sensor on the Internet. For updating, connect the IDS sensor to the Multi 9310, and the Multi 9310 to a PC. For the update via the USB-B interface, the following is required:...

  • Page 96: Glossary

    Glossary Multi 9310 Glossary pH/ORP Asymmetry see zero point Electromotive force of The electromotive force U of the combination electrode is the measur- an electrode able electromotive force of an electrode in a solution. It equals the sum of all the galvanic voltages of the combination electrode. Its dependency on the pH results in the electrode function, which is char- acterized by the parameters, slope and zero point.
  • Page 97 Pressure caused by the oxygen in a gas mixture or liquid. D.O. saturation Short name for the "relative D.O. saturation". ® OxiCal WTW name for a procedure to calibrate D.O. measuring systems in water vapor saturated air. Salinity The absolute salinity S of seawater corresponds to the relationship of the mass of dissolved salts to the mass of the solution (in g/kg).
  • Page 98 Glossary Multi 9310 Calibration Comparing the value from a measuring system (e. g. the displayed value) to the correct value or a value that is regarded as correct. Often, this expression is also used when the measuring system is adjusted at the same time (see adjusting).

  • Page 99: Index

    Multi 9310 Index Index Air calibration beaker ....52 Keys ......16 Automatic switch-off function .
  • Page 100 Index Multi 9310 Temperature measurement Conductivity .....57 O2 ......49 pH .
  • Page 102 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...

This manual is also suitable for:

Multi 9310p

Table of Contents