wtw Multi 9310 Operating instructions

ba75937e03 12/2011

Multi 9310

Multi 9310P

Operating manual

Digital pH / ORP / D.O. /

conductivity meter for digital IDS

sensors

Multi 9310P

Multi 9310

Printermodul

Multi 9310

2 ba75937e03 12/2011

Reproduction in whole - or even in part - is prohibited without the express

written permission of WTW GmbH, Weilheim.

Printed in Germany.

Multi 9310 - Contents

Multi 9310 Contents

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1 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.1 Multi 9310 meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.2 Multi 9310P meter with integrated printer . . . . . . . . . . . . . . . . . . 8

1.3 Sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1.3.1 IDS sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.3.2 IDS adapter for analog sensors . . . . . . . . . . . . . . . . . . . . 10

1.3.3 Automatic sensor recognition . . . . . . . . . . . . . . . . . . . . . 10

2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.1 Safety information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.1.1 Safety information in the operating manual . . . . . . . . . . . 11

2.1.2 Safety signs on the meter . . . . . . . . . . . . . . . . . . . . . . . . 11

2.1.3 Further documents providing safety information . . . . . . . 11

2.2 Safe operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.2.1 Authorized use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.2.2 Requirements for safe operation . . . . . . . . . . . . . . . . . . . 12

2.2.3 Unauthorized use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3.1 Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3.2 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3.3 Initial commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3.3.1 Inserting the batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.3.2 Connecting the power pack . . . . . . . . . . . . . . . . . . . . . . . 15

3.3.3 Mounting the stand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.1 General operating principles . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.1.1 Keypad. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.1.2 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.1.3 Status information (meter) . . . . . . . . . . . . . . . . . . . . . . . . 17

4.1.4 Socket field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.1.5 Sensor info. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.2 Switching on the meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

4.3 Switching off the meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

4.4 Login with a user name. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

4.5 Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

4.5.1 Operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

4.5.2 Measured value display . . . . . . . . . . . . . . . . . . . . . . . . . . 22

4.5.3 Menus and dialogs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Contents Multi 9310

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4.5.4 Example 1 on navigation: Setting the language . . . . . . . 24

4.5.5 Example 2 on navigation: Setting the date and time . . . 26

5 pH value. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

5.1 Measuring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

5.1.1 Measuring the pH value . . . . . . . . . . . . . . . . . . . . . . . . . 28

5.1.2 Measuring the temperature . . . . . . . . . . . . . . . . . . . . . . 29

5.2 pH calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

5.2.1 Why calibrate? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

5.2.2 When do you have to calibrate? . . . . . . . . . . . . . . . . . . . 30

5.2.3 Carrying out automatic calibration (AutoCal) . . . . . . . . . 30

5.2.4 Carrying out manual calibration (ConCal) . . . . . . . . . . . 33

5.2.5 Calibration points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

5.2.6 Calibration data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

5.2.7 Continuous measurement control (CMC function) . . 40

5.2.8 QSC function (sensor quality control) . . . . . . . . . . . . 41

6 ORP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

6.1 Measuring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

6.1.1 Measuring the ORP . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

6.1.2 Measuring the temperature . . . . . . . . . . . . . . . . . . . . . . 46

6.2 ORP calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

7 Dissolved oxygen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

7.1 Measuring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

7.1.1 Measuring D.O. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

7.1.2 Measuring the temperature . . . . . . . . . . . . . . . . . . . . . . 49

7.2 FDO

®

check procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

7.2.1 Why should you check the sensor? . . . . . . . . . . . . . . . . 50

7.2.2 When should you check the sensor? . . . . . . . . . . . . . . . 50

7.2.3 Carrying out the FDO® check procedure . . . . . . . . . . . . 50

7.2.4 Evaluation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

7.3 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

7.3.1 Why calibrate? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

7.3.2 When to calibrate? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

7.3.3 Calibration procedures . . . . . . . . . . . . . . . . . . . . . . . . . . 52

7.3.4 Calibration in water vapor-saturated air . . . . . . . . . . . . . 52

7.3.5 Calibration by means of a Comparison meas. (FDO Comp)

53

7.3.6 Calibration data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

8 Conductivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

8.1 Measuring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

8.1.1 Measuring the conductivity . . . . . . . . . . . . . . . . . . . . . . . 56

8.1.2 Measuring the temperature . . . . . . . . . . . . . . . . . . . . . . 57

8.2 Temperature compensation. . . . . . . . . . . . . . . . . . . . . . . . . . . 58

8.3 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

8.3.1 Why calibrate? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

8.3.2 When to calibrate? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

8.3.3 Determining the cell constant

(calibration in control standard) . . . . . . . . . . . . . . . . . 59

Multi 9310 Contents

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8.3.4 Calibration data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

9 Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

9.1 pH measurement settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

9.1.1 Settings for pH measurements . . . . . . . . . . . . . . . . . . . . 62

9.1.2 Buffer sets for calibration . . . . . . . . . . . . . . . . . . . . . . . . 63

9.1.3 Calibration interval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

9.2 ORP measurement settings. . . . . . . . . . . . . . . . . . . . . . . . . . . 66

9.2.1 Settings for ORP measurements . . . . . . . . . . . . . . . . . . 66

9.3 D.O. measurement settings . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

9.3.1 Settings for D.O. sensors

(menu for measurement and calibration settings) . . . . . 66

9.4 Cond measurement settings . . . . . . . . . . . . . . . . . . . . . . . . . . 68

9.4.1 Settings for IDS conductivity sensors . . . . . . . . . . . . . . . 68

9.5 Sensor-independent settings . . . . . . . . . . . . . . . . . . . . . . . . . . 70

9.5.1 System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

9.5.2 Data storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

9.5.3 Automatic Stability control . . . . . . . . . . . . . . . . . . . . . . . 71

9.5.4 Automatic switch-off function . . . . . . . . . . . . . . . . . . . . . 71

9.5.5 Display illumination. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

9.6 Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

9.6.1 Resetting the measurement settings . . . . . . . . . . . . . . . 72

9.6.2 Resetting the system settings. . . . . . . . . . . . . . . . . . . . . 74

10 Data storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

10.1 Manual data storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

10.2 Automatic data storage at intervals . . . . . . . . . . . . . . . . . . 76

10.3 Measured value data storage . . . . . . . . . . . . . . . . . . . . . . . . . 78

10.3.1 Editing the measured value data storage. . . . . . . . . . . . 78

10.3.2 Erasing the measurement data storage . . . . . . . . . . . . . 79

10.3.3 Measurement dataset. . . . . . . . . . . . . . . . . . . . . . . . . . . 79

10.3.4 Storage locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

11 Transmitting data (USB interfaces). . . . . . . . . . . . . . . . . . . . 81

11.1 Outputting current measurement data . . . . . . . . . . . . . . . . . . . 81

11.2 Transmitting data (to a PC) . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

11.3 Connecting the PC / USB-B interface (USB Device) . . . . . 81

11.4 Options for data transmission to a PC . . . . . . . . . . . . . . . . . . . 82

11.5 MultiLab Importer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

12 Printer (only Multi 9310P). . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

12.1 Commissioning / switching the printer on or off . . . . . . . . . . . . 83

12.2 Operation / printing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

12.3 Printer settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

12.4 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

12.4.1 Changing the roll of paper . . . . . . . . . . . . . . . . . . . . . . . 84

12.5 What to do if... / printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

13 Maintenance, cleaning, disposal. . . . . . . . . . . . . . . . . . . . . . 86

13.1 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

13.1.1 General maintenance activities . . . . . . . . . . . . . . . . . . . 86

Contents Multi 9310

6 ba75937e03 12/2011

13.1.2 Replacing the batteries. . . . . . . . . . . . . . . . . . . . . . . . . . 86

13.2 Cleaning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

13.3 Packing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

13.4 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

14 What to do if.... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

14.1 pH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

14.2 Dissolved oxygen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

14.3 Conductivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

14.4 General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

15 Technical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

15.1 Measuring ranges, resolution, accuracy . . . . . . . . . . . . . . . . . 92

15.2 General data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

16 Firmware update. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

16.1 Firmware update for the meter Multi 9310. . . . . . . . . . . . . . . . 94

16.2 Firmware-Update for IDS Sensors. . . . . . . . . . . . . . . . . . . . . . 95

17 Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

18 Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Multi 9310 Overview

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1 Overview

1.1 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.

The Multi 9310 supports you in your work with the following functions:

z Automatic sensor recognition

z CMC (continuous measurement control)

z QSC (sensor quality control)

z Electronic access control

z Data transmission via the USB interface (USB-B).

1 Keypad

2Display

3 Socket field

1

2

3

Overview Multi 9310

8 ba75937e03 12/2011

1.2 Multi 9310P meter with integrated printer

The integrated printer of the Multi 9310P enables to document measurements

according to GLP requirements.

1.3 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.

The information concerning the printer of the Multi 9310P is given

in a separate chapter (see section 12 P

RINTER (ONLY M ULTI 9310P),

page 83).

1 Keypad

2Display

3 Socket field

4Printer

5 Control panel of the printer

Information on available IDS sensors and IDS adapters is given on

the Internet and in the WTW catalog, "Laboratory and field instru-

mentation".

You can also operate non-IDS sensors with the aid of an IDS

adapter on the Multi 9310. The advantages of the sensor recogni-

tion, however, are not available in this case.

Pr

i

n

term

o

d

u

l

1

2

3

4

5

Multi 9310 Overview

ba75937e03 12/2011 9

1.3.1 IDS sensors

IDS sensors

z support the automatic sensor recognition

z show only the settings relevant to the specific sensor in the setting menu

z process signals in the sensor digitally so that precise and interference-free

measurements are enabled even with long cables

z facilitate to assign a sensor to a measured parameter with differently colored

couplings

z have quick-lock couplings with which to fix the sensors to the meter.

Sensor data from

IDS sensors

IDS sensors transmit the following sensor data to the meter:

z SENSOR ID

– Sensor name

– Sensor series number

z Calibration data

z Measurement settings

The calibration data are updated in the IDS sensor after each calibration proce-

dure. A message is displayed while the data are being updated in the sensor.

In the measured value display, you can display the sensor name

and series number of the selected sensor with the [Info] softkey.

You can then display further sensor data stored in the sensor with

the [More] softkey (see section 4.1.5 S

ENSOR INFO, page 18).

Overview Multi 9310

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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. The adapter data correspond to the sensor data.

1.3.3 Automatic sensor recognition

The automatic sensor recognition for IDS sensors allows

z to operate an IDS sensor with different meters without recalibrating

z to assign measurement data to an IDS sensor

– Measurement datasets are always stored and output with the sensor

name and sensor series number.

z to assign calibration data to an IDS sensor

– Calibration data and calibration history are always stored and output with

the sensor name and sensor series number.

z to hide menus automatically that do not concern this sensor

To be able to use the automatic sensor recognition, a meter that supports the

automatic sensor recognition (e.g. Multi 9310) and a digital IDS sensor are

required.

In digital IDS sensors, sensor data are stored that clearly identify the sensor.

The sensor data are automatically taken over by the meter.

Information on available IDS adapters is given on the Internet and

in the WTW catalog, "Laboratory and field instrumentation".

Detailed information on the IDS adapter is given in the operating

manual of the adapter.

Multi 9310 Safety

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2Safety

2.1 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.

Important safety instructions are highlighted in this operating manual. They are

indicated by the warning symbol (triangle) in the left column. The signal word

(e.g. "Caution") indicates the level of danger:

NOTE

indicates a possibly dangerous situation where goods might be damaged

if the actions mentioned are not taken.

2.1.2 Safety signs on the meter

Note all labels, information signs and safety symbols on the meter and in the

battery compartment. A warning symbol (triangle) without text refers to safety

information in this operating manual.

2.1.3 Further documents providing safety information

The following documents provide additional information, which you should

observe for your safety when working with the measuring system:

• Operating manuals of sensors and other accessories

• Safety datasheets of calibration or maintenance accessories (such as buffer

solutions, electrolyte solutions, etc.)

WARNING

indicates a possibly dangerous situation that can lead to seri-

ous (irreversible) injury or death if the safety instruction is not

followed.

CAUTION

indicates a possibly dangerous situation that can lead to

slight (reversible) injury if the safety instruction is not fol-

lowed.

Safety Multi 9310

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2.2 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

technical specifications given in this operating manual is authorized (see

section 15 T

ECHNICAL DATA, page 92).

Any other use is considered unauthorized.

2.2.2 Requirements for safe operation

Note the following points for safe operation:

• The meter may only be operated according to the authorized use specified

above.

• The meter may only be supplied with power by the energy sources

mentioned in this operating manual.

• The meter may only be operated under the environmental conditions

mentioned in this operating manual.

• The meter may only be opened if this is explicitly described in this operating

manual (example: Inserting the batteries).

2.2.3 Unauthorized use

The meter must not be put into operation if:

• it is visibly damaged (e.g. after being transported)

• it was stored under adverse conditions for a lengthy period of time (storing

conditions, see section 15 T

ECHNICAL DATA, page 92).

Multi 9310 Commissioning

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3 Commissioning

3.1 Scope of delivery

z MeterMulti 9310

z 4 batteries 1.5 V Mignon type AA

z Power pack

z USB cable (A plug on mini B plug)

z Stand

z Stand holder

z Comprehensive operating manual (4 languages)

z Short instructions

z CD-ROM with

– USB drivers

– comprehensive operating manual

– software MultiLab User

– software MultiLab Importer

3.2 Power supply

The Multi 9310 is supplied with power in the following ways:

z Mains operation with the supplied power pack

z Battery operation (4 batteries, 1.5 V Mignon type AA)

z USB operation via a connected USB-B cable

3.3 Initial commissioning

Perform the following activities:

z Insert the supplied batteries

z For mains operation: Connect the power pack

z If necessary, mount the stand

z Switch on the meter (see section 4.2 S

WITCHING ON THE METER, page 19)

z Set the date and time (see section 4.5.5 E

XAMPLE 2 ON NAVIGATION: SETTING

THE DATE AND TIME, page 26)

Commissioning Multi 9310

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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.

1. Open the battery compartment (1) on the underside of the

meter.

1 Battery compartment

CAUTION

Make sure that the poles of the batteries are positioned cor-

rectly.

The

± signs on the batteries must correspond to the ± signs in

the battery compartment.

2. Place four batteries (type Mignon AA) in the battery compartment.

3. Close the battery compartment (1).

4. Set the date and time

(see section 4.5.5 E

XAMPLE 2 ON NAVIGATION: SETTING THE DATE AND TIME,

page 26).

1

Multi 9310 Commissioning

ba75937e03 12/2011 15

3.3.2 Connecting the power pack

3.3.3 Mounting the stand

The stand base can be mounted at the right side of the meter.

CAUTION

The line voltage at the operating site must lie within the input

voltage range of the original power pack (see section 15.2

G

ENERAL DATA, page 92).

CAUTION

Use original power packs only (see section 15.2 GENERAL DATA,

page 92).

1. Connect the plug of the power pack to the socket for the power pack on

the Multi 9310.

2. Connect the original power pack to an easily accessible power outlet.

Pr

i

nte

rm

o

du

l

1

2

Operation Multi 9310

16 ba75937e03 12/2011

4 Operation

4.1 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. <ENTER>).

<F1>:

<F1__>:

<F2>:

<F2__>:

Softkeys providing situation dependent functions, e.g.:

<F1>/[Info]: View information on a sensor

<On/Off>: Switches the meter on or off

<M>: Selects the measured parameter / Quits the settings

<CAL>:

<CAL__>:

Calls up the calibration procedure

Displays the calibration data

<STO>:

<STO__>:

Saves a measured value manually

Opens the menu for the automatic save function

<RCL>:

<RCL__>:

Displays the manually stored measured values

Displays the automatically stored measured values

<S

SS

S><T

TT

T>:

<S

SS

S_><T

TT

T_>:

Menu control, navigation

Increments, decrements values

Increments, decrements values continuously

<ENTER>:

<ENTER__>:

Opens the menu for measurement settings / confirms

entries

Opens the menu for system settings

<AR> Freezes the measured value (HOLD function)

Switches the AutoRead measurement on or off

F1

F2

STO

RCL

AR

Multi 9310 Operation

ba75937e03 12/2011 17

4.1.2 Display

Example (pH):

4.1.3 Status information (meter)

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)

7 Status information (meter)

8 Softkeys and date + time

AR Stability control (AutoRead) is active

HOLD Measured value is frozen (<AR> key)

Batteries are almost empty

Data are automatically output to the USB-B interface at

intervals

3

2

1

4

5

6

8

HOLD AR

7

AutoCal TEC

Info

01.07.2011

08:00

USB output

Operation Multi 9310

18 ba75937e03 12/2011

4.1.4 Socket field

4.1.5 Sensor info

You can display the current sensor data and sensor settings of a connected

sensor at any time. The sensor data are available in the measured value

display with the <F1>/[Info] softkey.

1 Digital sensors: (pH, ORP, conductivity, D.O.)

2 USB B (device) interface

3 Service interface

4 Power pack

CAUTION

Only connect sensors to the meter that cannot return any volt-

ages or currents that are not allowed (> SELV and > current

circuit with current limiting).

WTW IDS sensors and IDS adapters meet these requirements.

1. In the measured value display:

Display the sensor data (sensor name, series number) with [<F1>Info].

1

2

3

4

01.07.2011

08:00

Info

USB output

Multi 9310 Operation

ba75937e03 12/2011 19

4.2 Switching on the meter

2. Display further sensor data (settings) with <F1>/[More].

1. Switch the meter on with <On/Off>.

The meter performs a self-test.

2. Connect the sensor.

The meter is ready to measure.

More

01.07.2011

08:00

SenTix 940

B09250001

pH resolution 0.001

mV resolution 0.1

Buffer TEC

Calibration interval 7d

Unit for slope mV/pH

QSC: off

Software-Version V 1.00

SenTix 940

B092500013

01.07.2011

08:00

Back

Info

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08:00

USB output

Operation Multi 9310

20 ba75937e03 12/2011

4.3 Switching off the meter

4.4 Login with a user name

After activation of the user administration by the administrator (software

MultiLab User, on the enclosed CD-ROM), measurements

are only possible after login with a user name. The user

name is documented with the measured values and in records.

All user names entered by the administrator are listed in the User name menu.

The administrator determines for each user whether or not a

password is required for the login to the meter.

If the Password menu item is grayed out, no password is required for

the login.

If the user administration function is activated, the Login dialog

appears after the meter is switched on (see section 4.4 L

OGIN WITH

A USER NAME, page 20).

The user administration function is not active in the delivery condi-

tion.

1. Switch the meter off with <On/Off>.

1. Switch the meter on with <On/Off>.

The Login dialog appears.

2. Using <S

SS

S><T

TT

T>, select the menu item, User name and confirm with

<ENTER>.

The user name is highlighted.

3. Using <S

SS

S><T

TT

T>, select a user name and confirm with <ENTER>.

User name Admin

Password ####

Change password

Login

01.07.2011

08:00

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