wtw inoLab 740 User manual

ba75446e05 07/2010
inoLab 740
with terminal 740
Operating manual
inoLab 740
measuring system with
active multifunction boxes
and 740 terminal
AR
RUN
ENTER
inoLab
Cond
730

inoLab 740
2ba75446e05 07/2010
Accuracy when
going to press
The use of advanced technology and the high quality standard of our
instruments are the result of continuous development. This may result
in differences between this operating manual and your instrument.
Also, we cannot guarantee that there are absolutely no errors in this
manual. Therefore, we are sure you will understand that we cannot
accept any legal claims resulting from the data, figures or descriptions.
Warranty We guarantee the instrument described for 3 years from the date of
purchase.
The instrument warranty covers manufacturing faults that are
discovered within the warranty period.
The warranty does not cover components that are replaced during
maintenance work, e. g. batteries.
The warranty claim extends to restoring the instrument to readiness for
use but not, however, to any further claim for damages. Improper
handling or unauthorized opening of the instrument invalidates any
warranty claim.
To ascertain the warranty liability, return the instrument and proof of
purchase together with the date of purchase freight paid or prepaid.
Copyright ©Weilheim 2010, WTW GmbH
Reprinting - even as excerpts - is only allowed with the explicit written
authorization of WTW GmbH, Weilheim.
Printed in Germany.

inoLab 740 Contents
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inoLab 740 - Contents
1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.1 Measuring module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1.2 Terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.2.1 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.2.2 Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
1.2.3 Sockets on the terminal . . . . . . . . . . . . . . . . . . . 13
1.2.4 Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.1 Authorized use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.2 General safety instructions . . . . . . . . . . . . . . . . . . . . . . . 16
3 Commissioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.1 Scope of delivery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.2 Preparing the inoLab 740 measuring system . . . . . . . . . 20
3.3 Switching on the measuring system . . . . . . . . . . . . . . . . 25
3.4 Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3.5 Updating the terminal software (firmware) . . . . . . . . . . . 27
3.5.1 Checking the version no. of the terminal
firmware . . . . . . . . . . . . . . . . . . . . . . . . . . 27
3.5.2 Starting the update of the terminal firmware . . . 28
4 Basic principles of operation. . . . . . . . . . . . . . . . . . . . 31
4.1 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4.1.1 Status display indicators . . . . . . . . . . . . . . . . . . 32
4.1.2 Softkey functions . . . . . . . . . . . . . . . . . . . . . . . . 34
4.1.3 Symbols in the Menu mode . . . . . . . . . . . . . . . . 35
4.1.4 Display of measured values . . . . . . . . . . . . . . . . 36
4.2 Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
4.2.1 Keys on the terminal . . . . . . . . . . . . . . . . . . . . . 39
4.2.2 Keys on the measuring module . . . . . . . . . . . . . 40
4.2.3 IBM PC keyboard . . . . . . . . . . . . . . . . . . . . . . . . 41
4.2.4 Barcode reader . . . . . . . . . . . . . . . . . . . . . . . . . 42
4.3 Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
4.4 Output of measured data . . . . . . . . . . . . . . . . . . . . . . . . 46
4.4.1 Measured data display on the screen . . . . . . . . 46
4.4.2 Measured data output on the integrated printer . 47
4.4.3 Outputting measured data to the
RS232/REC interface. . . . . . . . . . . . . . . . . . . . . 47

Contents inoLab 740
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5 System settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
5.1 Date and time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
5.2 Changing the language . . . . . . . . . . . . . . . . . . . . . . . . . . 50
5.3 Display settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
5.3.1 Display contrast . . . . . . . . . . . . . . . . . . . . . . . . . 51
5.3.2 Display illumination . . . . . . . . . . . . . . . . . . . . . . . 52
5.4 Acoustic signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
5.5 Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
5.5.1 Temperature unit . . . . . . . . . . . . . . . . . . . . . . . . 54
5.5.2 Measuring the temperature. . . . . . . . . . . . . . . . . 55
5.6 User profiles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
5.6.1 Opening the Administration menu . . . . . . . . . . . 59
5.6.2 Opening the Administration window . . . . . . . . . . 59
5.6.3 Creating, editing, or deleting a user profile . . . . . 60
5.6.4 Printing the list of user profiles . . . . . . . . . . . . . . 61
5.7 Password for user names . . . . . . . . . . . . . . . . . . . . . . . . 62
5.7.1 Changing the password . . . . . . . . . . . . . . . . . . . 62
5.7.2 Assigning a password. . . . . . . . . . . . . . . . . . . . . 63
5.7.3 Forgotten the password? . . . . . . . . . . . . . . . . . . 63
5.8 Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
6 pH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
6.1 Settings for pH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
6.1.1 Displaying pH/ISE or measured voltage values . 67
6.1.2 Setting the pH display. . . . . . . . . . . . . . . . . . . . . 67
6.1.3 Measured value resolution of voltage display. . . 68
6.1.4 Measured value resolution of pH display . . . . . . 69
6.1.5 Resetting to default settings . . . . . . . . . . . . . . . . 70
6.2 Calibrating pH measurements . . . . . . . . . . . . . . . . . . . . . 71
6.2.1 Buffer sets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
6.2.2 Calibration settings . . . . . . . . . . . . . . . . . . . . . . . 74
6.2.3 Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
6.3 Measuring the pH value. . . . . . . . . . . . . . . . . . . . . . . . . . 83
6.4 Measuring the ORP voltage. . . . . . . . . . . . . . . . . . . . . . . 85
7 Ion concentration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
7.1 Settings for ISE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
7.1.1 Displaying pH/ISE or measured voltage values . 87
7.1.2 Setting up the ISE display . . . . . . . . . . . . . . . . . 87
7.1.3 Determining the measuring range . . . . . . . . . . . 88
7.1.4 Measured value resolution of voltage display. . . 89
7.1.5 Resetting to default settings . . . . . . . . . . . . . . . . 89
7.2 Advanced settings for ISE . . . . . . . . . . . . . . . . . . . . . . . . 90
7.2.1 Units of the ISE display. . . . . . . . . . . . . . . . . . . . 90
7.2.2 Blank value correction (Bw Corr) . . . . . . . . . . . . 91
7.2.3 Reference measurement (Ref Meas) . . . . . . . . . 92
7.2.4 Criterion for AutoRead (AutoRead). . . . . . . . . . . 93

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7.3 Calibration for ion-selective measurements . . . . . . . . . . 94
7.3.1 Two-point and three-point calibration. . . . . . . . . 97
7.3.2 Four-point to six-point calibration . . . . . . . . . . . 100
7.4 Measuring the ion concentration . . . . . . . . . . . . . . . . . . 102
7.4.1 Select the measuring method . . . . . . . . . . . . . 103
7.4.2 Standard Addition (Std Add) . . . . . . . . . . . . . . 105
7.4.3 Double Standard Addition (Std Add ++). . . . . . 107
7.4.4 Standard Subtraction (Std Sub) . . . . . . . . . . . 109
7.4.5 Sample Addition (Smp Add) . . . . . . . . . . . . . . 111
7.4.6 Sample Subtraction (Smp Sub). . . . . . . . . . . . 113
7.4.7 Standard addition with blank value
correction (Bw Add) . . . . . . . . . . . . . . . . . . . . . 116
8 Dissolved oxygen (D. O.) . . . . . . . . . . . . . . . . . . . . . . 119
8.1 Settings for D. O. measurements . . . . . . . . . . . . . . . . . 119
8.1.1 Determining the measuring range . . . . . . . . . . 119
8.1.2 Displaying the air pressure. . . . . . . . . . . . . . . . 120
8.1.3 Salinity correction. . . . . . . . . . . . . . . . . . . . . . . 120
8.1.4 Resetting to default settings. . . . . . . . . . . . . . . 122
8.2 Calibrating for D. O. measurements . . . . . . . . . . . . . . . 123
8.2.1 Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
8.2.2 Calibrating with the air calibration vessel . . . . . 126
8.2.3 Calibrating via a comparison measurement . . 127
8.3 Measuring the D. O. content . . . . . . . . . . . . . . . . . . . . . 128
8.3.1 Selecting the measured value display . . . . . . . 129
8.3.2 Drift control (AutoRead) . . . . . . . . . . . . . . . . . . 130
9 BOD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
9.1 General information. . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
9.1.1 Operation with the StirrOx G oxygen sensor . . 133
9.1.2 Operation with a barcode reader . . . . . . . . . . . 133
9.2 BOD measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
9.2.1 Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
9.2.2 Start measurement. . . . . . . . . . . . . . . . . . . . . . 134
9.2.3 Stopping the BOD measurement . . . . . . . . . . . 140
9.2.4 End measurement . . . . . . . . . . . . . . . . . . . . . . 140
9.3 BOD result. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
9.3.1 Displaying, editing and printing the
measurement result . . . . . . . . . . . . . . . . . . . . . 144
9.3.2 Deleting BOD measurement results. . . . . . . . . 147
9.4 Routines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
9.4.1 Setting up routines . . . . . . . . . . . . . . . . . . . . . . 148
9.4.2 Starting a measurement with routine . . . . . . . . 149
9.4.3 Deleting routines . . . . . . . . . . . . . . . . . . . . . . . 149

Contents inoLab 740
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10 Conductivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
10.1 Settings for conductivity measurements . . . . . . . . . . . . 151
10.1.1 Determining the measuring range . . . . . . . . . . 151
10.1.2 Entering the reference temperature . . . . . . . . . 152
10.1.3 Displaying the conductivity or specific
resistance . . . . . . . . . . . . . . . . . . . . . . . . 153
10.1.4 Setting the temperature compensation. . . . . . . 154
10.1.5 Reset (Reset) . . . . . . . . . . . . . . . . . . . . . . . . . . 155
10.2 Determining/setting up the cell constant . . . . . . . . . . . . 156
10.2.1 Determining the cell constant (calibration) . . . . 156
10.2.2 Setting the cell constant . . . . . . . . . . . . . . . . . . 159
10.3 Measuring the conductivity . . . . . . . . . . . . . . . . . . . . . . 163
10.3.1 General information . . . . . . . . . . . . . . . . . . . . . 163
10.3.2 Displaying the conductivity, dry filtrate
residue or salinity . . . . . . . . . . . . . . . . . . . . . . . 163
10.3.3 Drift control (AutoRead) . . . . . . . . . . . . . . . . . . 164
11 Data storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
11.1 Storage of measurement data records . . . . . . . . . . . . . 167
11.1.1 Saving individual measurement data records. . 168
11.1.2 Automatically storing measurement data
records . . . . . . . . . . . . . . . . . . . . . . . . . . 169
11.1.3 Displaying stored measurement data records . 172
11.1.4 Deleting stored measurement data records . . . 176
11.2 Storage of system configurations . . . . . . . . . . . . . . . . . 178
11.2.1 Saving the system configuration. . . . . . . . . . . . 178
11.2.2 Recalling a system configuration . . . . . . . . . . . 179
11.2.3 Deleting a system configuration . . . . . . . . . . . . 180
11.3 Storage of calibration records . . . . . . . . . . . . . . . . . . . . 181
12 Data output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
12.1 Data output to the display . . . . . . . . . . . . . . . . . . . . . . . 184
12.1.1 Numerical display . . . . . . . . . . . . . . . . . . . . . . 184
12.1.2 Graphical display . . . . . . . . . . . . . . . . . . . . . . . 185
12.2 Outputting data to the integrated printer . . . . . . . . . . . . 189
12.2.1 General information . . . . . . . . . . . . . . . . . . . . . 189
12.2.2 Switching on the integrated printer . . . . . . . . . 190
12.2.3 Data output to the integrated printer . . . . . . . . 190
12.2.4 Printing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
12.3 Outputting data to an external printer/PC . . . . . . . . . . . 194
12.3.1 Outputting data to the RS232/REC interface . . 195
12.3.2 Setting the baud rate . . . . . . . . . . . . . . . . . . . . 195
12.3.3 Determining the data format . . . . . . . . . . . . . . 196
12.3.4 Setting the print interval . . . . . . . . . . . . . . . . . . 198
12.3.5 Outputting data to an external printer or PC . . 199
12.4 Outputting data to the external recorder . . . . . . . . . . . . 199

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13 Maintenance, cleaning, disposal. . . . . . . . . . . . . . . . 201
13.1 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
13.1.1 Replacing the batteries . . . . . . . . . . . . . . . . . . 201
13.1.2 Changing the roll of paper. . . . . . . . . . . . . . . . 202
13.1.3 Maintenance of the probes. . . . . . . . . . . . . . . . 202
13.2 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
13.3 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
14 What to do if... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
14.1 Terminal messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
14.2 Printer messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
14.3 pH/voltage system messages . . . . . . . . . . . . . . . . . . . 207
14.4 Ion concentration system messages . . . . . . . . . . . . . . 209
14.5 Oxygen system messages . . . . . . . . . . . . . . . . . . . . . . 211
14.6 Conductivity system messages . . . . . . . . . . . . . . . . . . 213
15 Technical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215
15.1 Terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
15.2 Measuring module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
15.3 pH/electromotive force of the electrode: . . . . . . . . . . . . 221
15.4 Ion concentration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
15.5 Dissolved oxygen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224
15.6 Conductivity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
16 Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229
16.1 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230
16.2 Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
16.3 Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237

Contents inoLab 740
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inoLab 740 Overview
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1 Overview
The inoLab 740 measuring system is suitable for operating with an
inoLab 740 terminal and also with a PC.
This manual contains a description of the operation of inoLab 740 with
terminal.
Note
The operation of inoLab 740 measuring modules on the PC with the
MultiLab pilot software is described in a separate operating manual.
The newest software version of MultiLab pilot is available on the
Internet under http://www.wtw.com.
Note
Information on other accessories is given in the WTW catalog,
LABORATORY AND FIELD INSTRUMENTATION, or is available via the
Internet.
AR
RUN
ENTER
inoLab
Cond
730
Terminal Measuring module (active
multifunction box)

Overview inoLab 740
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1.1 Measuring module
The inoLab 740 measuring system works together with the following
inoLab 740 active multifunction boxes:
pH, pH/ION, Oxi, BSB/BOD, Cond, pH/Cond and Multi.
Each inoLab 740 measuring module has its own fixed software in order
to process the probe signals and to communicate with the terminal.
A detailed description of the operating elements on the measuring
module can be found in chapter 4 BASIC PRINCIPLES OF OPERATION.
Measuring module

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1.2 Terminal
The terminal is both the display and entry unit of the system. The
settings for the measurement and display of the measured values are
menu-driven via the display. The terminal is optionally equipped with an
integrated printer. The terminal recognizes the type of inoLab 740
measuring module connected and the probe operated with the
measuring module via the connection cable.
1.2.1 Display
The measured value, active functions or settings and available menu
items that are displayed always correspond to the active probe and the
selected measured variable.
The display of the terminal shows:
1Menu line to select the measuring and display settings
2Type of temperature measurement, i.e. manual entry, external
or integrated temperature probe
3Status line that displays the active functions and settings
4Softkey functions
5Current measured temperature value
6Current measured value
7Selected measured variable
1
2
3
4
5
6
7

Overview inoLab 740
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1.2.2 Keys
The inoLab 740 measuring system has a keypad on the terminal and
one on the measuring module. The terminal keys operate the entire
measuring system. Using the gand akeys on the measuring
module, you can also operate the AutoRead function (drift control) on
the measuring module. The LED on the measuring module shows the
AutoRead status.
The topmost row of keys on the terminal consists of softkeys.
Each softkey carries out the softkey function that is displayed directly
above the key.
A detailed diagram and description of the keys and softkeys is given in
chapter 4 BASIC PRINCIPLES OF OPERATION.
AR
RUN
ENTER
Terminal Measuring module

inoLab 740 Overview
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1.2.3 Sockets on the terminal
Warning
The line voltage on site must lie within the input voltage range of the
original plug-in power supply unit. Use original plug-in power supplies
only (see chapter 15 TECHNICAL DATA).
Connections:
1Plug-in power supply unit
2inoLab 740 measuring module
3RS 232 interface/analog output
4IBM PC keyboard (via adapter cable AK T-K
PS2)
1
2
3
4

Overview inoLab 740
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1.2.4 Firmware
The inoLab 740 terminal software (firmware) can be updated. You can
always install the newest software version for the terminal via a
connected PC and a special update program.
The details of the update are given insection 3.5 and in the installation
program for the update.
Note
Further information on the latest software version is available from
WTW or on the Internet under
http://www.WTW.com.
The addresses and telephone numbers of the WTW subsidiaries are
given on the cover of this operating manual.

inoLab 740 Safety
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2 Safety
This operating manual contains basic instructions that must be followed
in the commissioning, operation and maintenance of the inoLab 740
(terminal and measuring module) measuring system. Consequently, all
responsible personnel must read this operating manual carefully before
working with the measuring system.
The operating manual must always be available within the vicinity of the
measuring system.
Target group The measuring system was developed for use in the laboratory.
Thus, we assume that, as a result of their professional training and
experience, the operators will know the necessary safety precautions
to take when handling chemicals.
Symbols
used
Warning
indicates safety instructions that must be followed to prevent damage
to persons and property.
Note
indicates notes that draw your attention to special features.
Note
indicates cross-references to other documents, e.g. application
reports, operating manuals of probes, etc.

Safety inoLab 740
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2.1 Authorized use
This measuring system is authorized exclusively for potentiometric,
conductimetric or amperometric measurements in the laboratory.
The technical specifications as given in chapter 15 TECHNICAL DATA
must be observed. Only the operation and running of the measuring
instrument according to the instructions given in this operating manual
is authorized.
Any other use is considered unauthorized.
2.2 General safety instructions
This measuring system is constructed and tested in compliance with
the EN 61010-1 safety regulations for electronic measuring
instruments.
It left the factory in a safe and secure technical condition.
Function and operating
safety
The smooth functioning and operational safety of the measuring
system can only be guaranteed if the generally applicable safety
measures and the specific safety instructions in this operating manual
are followed during operation.
The smooth functioning and operational safety of the instrument can
only be guaranteed under the environmental and electrical operating
conditions that are in specified in chapter 15 TECHNICAL DATA.
If the measuring system was transported from a cold environment to a
warm environment, the formation of condensate can impair the
functioning of the measuring system. In this event, wait until the
temperature of the measuring system reaches room temperature
before putting the measuring system back into operation.
Warning
The measuring system is only allowed to be opened by personnel
authorized by WTW.

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Safe operation If safe operation is no longer possible, the measuring system must be
taken out of service and secured against inadvertent operation!
Safe operation is no longer possible if the measuring system (terminal
or measuring module):
zhas been damaged in transport
zhas been stored under adverse conditions for a lengthy period of
time
zis visibly damaged
zno longer operates as described in this manual.
If you are in any doubt, please contact the supplier of the measuring
system.
Obligations of the
purchaser
The purchaser of this measuring system must ensure that the following
laws and guidelines are observed when using dangerous substances:
zEEC directives for protective labor legislation
zNational protective labor legislation
zSafety regulations
zSafety datasheets of the chemical manufacturers.

Safety inoLab 740
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inoLab 740 Commissioning
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3 Commissioning
3.1 Scope of delivery
zThe inoLab 740 Set includes: inoLab 740 terminal,
740 measuring module and probe
(depending on the composition of the inoLab 740 set)
zOperating and display instrument
– inoLab 740 terminal
– Plug-in power supply with country-specific adapters
(for Great Britain, United States of America, Europe and
Australia)
– RS 232 interface cable, AK T-PC
(for data transmission on the PC and software update).
zMeasuring module (active multifunction box)
– inoLab 740 measuring module (depending on how the set is
made up)
– Connecting cable (AK M-T) from the measuring module to the
terminal
– Stand rod
– Probe holder
– Locking holder for non-active probes
– for BSB/BOD measuring module:
Adapter cable AK T-K PS2 for connecting a barcode reader or an
IBM-PC keyboard to the measuring module
zSoftware MultiLab pilot on CD-ROM
zConnecting cable AK M-PC from the measuring module to the PC
zOperating manual for terminal and measuring module

Commissioning inoLab 740
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3.2 Preparing the inoLab 740 measuring system
A measuring module that is ready for operation looks as follows:
1Cable holder
2Stand rod
3Opening to the cable shaft
4Connection cable to the terminal (AK M-T)
6Locking holder
7Beaker with test solution
8Probe
9Freely adjustable probe holder
10 Locking key for probe holder
11 Connection cable: Probe - measuring module
AR
RUN
ENTER
inoLab
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