wtw inoLab 740 Operating instructions

Category
Measuring, testing & control
Type
Operating instructions

This manual is also suitable for

inoLab Level 3
with Level 3 terminal
ba12239e03 02/2002
ba12239e
Operating manual
inoLab Level 3
measuring system with
active multifunction boxes
and inoLab Level 3 terminal
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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 2002, WTW GmbH & Co. KG
Reprinting - even as excerpts - is only allowed with the
explicit written authorization of WTW GmbH & Co. KG,
Weilheim.
Printed in Germany.
List of contents
3
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 Level 3 measuring system . . . . . . . . . . . . . . . . . . . .20
3.3 Switching on the measuring system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
3.4 Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
3.5 Updating the terminal software (firmware) . . . . . . . . . . . . . . . . . . . . . . . . .29
3.5.1 Checking the version no. of the terminal firmware . . . . . . . . . . . . .29
3.5.2 Starting the update of the terminal firmware . . . . . . . . . . . . . . . . .30
4 Basic principles of operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
4.1 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
4.1.1 Status display indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
4.1.2 Softkey functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
4.1.3 Symbols in the Menu mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
4.1.4 Display of measured values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
4.2 Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
4.2.1 Keys on the terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
4.2.2 Keys on the measuring module . . . . . . . . . . . . . . . . . . . . . . . . . . .42
4.2.3 IBM PC keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
4.2.4 Barcode reader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
4.3 Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
4.4 Output of measured data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
4.4.1 Measured data display on the screen . . . . . . . . . . . . . . . . . . . . . .48
4.4.2 Measured data output on the integrated printer . . . . . . . . . . . . . . .49
4.4.3 Outputting measured data to the RS232/REC interface . . . . . . . .49
List of contents
4
5 System settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
5.1 Date and time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
5.2 Changing the language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
5.3 Display settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
5.3.1 Display contrast . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
5.3.2 Display illumination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
5.4 Acoustic signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
5.5 Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
5.5.1 Temperature unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
5.5.2 Measuring the temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
5.6 User profiles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
5.6.1 Opening the Administration menu . . . . . . . . . . . . . . . . . . . . . . . . .62
5.6.2 Opening the Administration window . . . . . . . . . . . . . . . . . . . . . . .62
5.6.3 Creating, editing, or deleting a user profile . . . . . . . . . . . . . . . . . .63
5.6.4 Printing the list of user profiles . . . . . . . . . . . . . . . . . . . . . . . . . . .65
5.7 Password for user names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66
5.7.1 Changing the password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66
5.7.2 Assigning a password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
5.7.3 Forgotten the password? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68
5.8 Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
6 pH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
6.1 Settings for pH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
6.1.1 Displaying pH/ISE or measured voltage values . . . . . . . . . . . . . .71
6.1.2 Setting the pH display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72
6.1.3 Measured value resolution of voltage display . . . . . . . . . . . . . . . .73
6.1.4 Measured value resolution of pH display . . . . . . . . . . . . . . . . . . . .74
6.1.5 Resetting to default settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75
6.2 Calibrating pH measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76
6.2.1 Buffer sets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78
6.2.2 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81
6.3 Measuring the pH value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89
6.4 Measuring the ORP voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91
7 Ion concentration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
7.1 Settings for ISE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93
7.1.1 Displaying pH/ISE or measured voltage values . . . . . . . . . . . . . .93
7.1.2 Setting up the ISE display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93
List of contents
5
7.1.3 Measured value resolution of voltage display . . . . . . . . . . . . . . . .94
7.1.4 Resetting to default settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94
7.2 Advanced settings for ISE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .95
7.2.1 Units of the ISE display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .95
7.2.2 Blank value correction (Bw Corr) . . . . . . . . . . . . . . . . . . . . . . . . . .96
7.2.3 Reference measurement (Ref Meas) . . . . . . . . . . . . . . . . . . . . . .98
7.2.4 Criterion for AutoRead (AutoRead) . . . . . . . . . . . . . . . . . . . . . . .100
7.3 Calibration for ion-selective measurements . . . . . . . . . . . . . . . . . . . . . . .101
7.3.1 Two-point and three-point calibration . . . . . . . . . . . . . . . . . . . . .105
7.3.2 Four-point to six-point calibration . . . . . . . . . . . . . . . . . . . . . . . . .109
7.4 Measuring the ion concentration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .112
7.4.1 Select the measuring method . . . . . . . . . . . . . . . . . . . . . . . . . . .115
7.4.2 Standard Addition (Std Add) . . . . . . . . . . . . . . . . . . . . . . . . . . . .116
7.4.3 Double Standard Addition (Std Add ++) . . . . . . . . . . . . . . . . . . .119
7.4.4 Standard Subtraction (Std Sub) . . . . . . . . . . . . . . . . . . . . . . . . .122
7.4.5 Sample Addition (Smp Add) . . . . . . . . . . . . . . . . . . . . . . . . . . . .125
7.4.6 Sample Subtraction (Smp Sub) . . . . . . . . . . . . . . . . . . . . . . . . .127
7.4.7 Standard addition with blank value correction (Bw Add) . . . . . . .131
8 Dissolved oxygen (D. O.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
8.1 Settings for D. O. measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .135
8.1.1 Determining the measuring range . . . . . . . . . . . . . . . . . . . . . . . .135
8.1.2 Displaying the air pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . .136
8.1.3 Salinity correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .137
8.1.4 Resetting to default settings . . . . . . . . . . . . . . . . . . . . . . . . . . . .139
8.2 Calibrating for D. O. measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . .140
8.2.1 Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .142
8.2.2 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .142
8.3 Measuring the D. O. content . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .144
8.3.1 Selecting the measured value display . . . . . . . . . . . . . . . . . . . . .145
8.3.2 Drift control (AutoRead) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .146
9 BOD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
9.1 General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .149
9.1.1 Operation with the StirrOx G oxygen sensor . . . . . . . . . . . . . . . .150
9.1.2 Operation with a barcode reader . . . . . . . . . . . . . . . . . . . . . . . . .150
9.2 BOD measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .152
9.2.1 Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .152
9.2.2 Start measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .152
List of contents
6
9.2.3 Stopping the BOD measurement . . . . . . . . . . . . . . . . . . . . . . . . .159
9.2.4 End measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .160
9.3 BOD result . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .165
9.3.1 Displaying, editing and printing the measurement result . . . . . . .165
9.3.2 Deleting BOD measurement results . . . . . . . . . . . . . . . . . . . . . .168
9.4 Routines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .170
9.4.1 Setting up routines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .170
9.4.2 Starting a measurement with routine . . . . . . . . . . . . . . . . . . . . . .172
9.4.3 Deleting routines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .172
10 Conductivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
10.1 Settings for conductivity measurements . . . . . . . . . . . . . . . . . . . . . . . . . .175
10.1.1 Determining the measuring range . . . . . . . . . . . . . . . . . . . . . . . .175
10.1.2 Entering the reference temperature . . . . . . . . . . . . . . . . . . . . . . .177
10.1.3 Displaying the conductivity or specific resistance . . . . . . . . . . . .178
10.1.4 Setting the temperature compensation . . . . . . . . . . . . . . . . . . . .179
10.1.5 Reset (Reset) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .180
10.2 Determining/setting up the cell constant . . . . . . . . . . . . . . . . . . . . . . . . . .182
10.2.1 Determining the cell constant (calibration) . . . . . . . . . . . . . . . . .182
10.2.2 Setting the cell constant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .186
10.3 Measuring the conductivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .190
10.3.1 General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .190
10.3.2 Displaying the conductivity, dry filtrate residue or salinity . . . . . .190
10.3.3 Drift control (AutoRead) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .192
11 Data storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
11.1 Storage of measurement data records . . . . . . . . . . . . . . . . . . . . . . . . . . .194
11.1.1 Saving individual measurement data records . . . . . . . . . . . . . . .194
11.1.2 Automatically storing measurement data records . . . . . . . . . . . .196
11.1.3 Displaying stored measurement data records . . . . . . . . . . . . . . .199
11.1.4 Deleting stored measurement data records . . . . . . . . . . . . . . . .204
11.2 Storage of system configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .206
11.2.1 Saving the system configuration . . . . . . . . . . . . . . . . . . . . . . . . .206
11.2.2 Recalling a system configuration . . . . . . . . . . . . . . . . . . . . . . . . .207
11.2.3 Deleting a system configuration . . . . . . . . . . . . . . . . . . . . . . . . .209
11.3 Storage of calibration records . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .210
12 Data output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211
12.1 Data output to the display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .213
List of contents
7
12.1.1 Numerical display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .213
12.1.2 Graphical display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .214
12.2 Outputting data to the integrated printer . . . . . . . . . . . . . . . . . . . . . . . . . .218
12.2.1 General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .218
12.2.2 Switching on the integrated printer . . . . . . . . . . . . . . . . . . . . . . .219
12.2.3 Data output to the integrated printer . . . . . . . . . . . . . . . . . . . . . .219
12.2.4 Printing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .220
12.3 Outputting data to an external printer/PC . . . . . . . . . . . . . . . . . . . . . . . . .224
12.3.1 Outputting data to the RS232/REC interface . . . . . . . . . . . . . . . .225
12.3.2 Setting the baud rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .225
12.3.3 Determining the data format . . . . . . . . . . . . . . . . . . . . . . . . . . . .226
12.3.4 Setting the print interval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .228
12.3.5 Outputting data to an external printer or PC . . . . . . . . . . . . . . . .229
12.4 Outputting data to the external recorder . . . . . . . . . . . . . . . . . . . . . . . . .230
13 Maintenance, cleaning, disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233
13.1 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .233
13.1.1 Replacing the batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .233
13.1.2 Changing the roll of paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . .234
13.1.3 Maintenance of the probes . . . . . . . . . . . . . . . . . . . . . . . . . . . . .234
13.2 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .235
13.3 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .235
14 What to do if... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
14.1 Terminal messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .237
14.2 Printer messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .238
14.3 pH/voltage system messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .239
14.4 Ion concentration system messages . . . . . . . . . . . . . . . . . . . . . . . . . . . .242
14.5 Oxygen system messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .244
14.6 Conductivity system messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .246
15 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247
15.1 Terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .248
15.2 Measuring module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .252
15.3 pH/electromotive force of the electrode: . . . . . . . . . . . . . . . . . . . . . . . . . .253
15.4 Ion concentration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .255
15.5 Dissolved oxygen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .256
List of contents
8
15.6 Conductivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .258
16 Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261
16.1 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .262
16.2 Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .264
16.3 Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .271
Overview
9
1Overview
The inoLab Level 3 measuring system is suitable for
operating with an inoLab Level 3 terminal and also with a
PC.
This manual contains a description of the operation of
inoLab Level 3 with terminal.
Note
The operation of inoLab Level 3 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, L
ABORATORY AND FIELD INSTRUMENTATION, or is
available via the Internet.
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Terminal
Measuring module (active
multifunction box)
Overview
10
1.1 Measuring module
The inoLab Level 3 measuring system works together with
the following inoLab Level 3 active multifunction boxes:
pH, pH/ION, Oxi, BSB/BOD, Cond, pH/Oxi, pH/Cond and
Multi.
Each inoLab Level 3 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 B
ASIC
PRINCIPLES OF OPERATION.
Measuring module
Overview
11
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 Level 3
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:
1 Menu line to select the measuring and display
settings
2 Type of temperature measurement, i.e. manual
entry, external or integrated temperature probe
3 Status line that displays the active functions and
settings
4 Softkey functions
5 Current measured temperature value
6 Current measured value
7 Selected measured variable
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Overview
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1.2.2 Keys
The inoLab Level 3 measuring system has a keypad on the
terminal and one on the measuring module. The terminal
keys operate the entire measuring system. Using the
g
and
a keys 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 B
ASIC PRINCIPLES OF OPERATION.
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Terminal
Measuring module
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 T
ECHNICAL
DATA).
Connections:
1 Plug-in power supply unit
2 inoLab Level 3 measuring module
3 RS 232 interface/analog output
4 IBM PC keyboard (via adapter cable
AK T-K PS2)
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Overview
14
1.2.4 Firmware
The inoLab Level 3 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.
Safety
15
2 Safety
This operating manual contains basic instructions that must
be followed in the commissioning, operation and
maintenance of the inoLab Level 3 (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
16
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
T
ECHNICAL 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 T
ECHNICAL 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.
Safety
17
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):
l has been damaged in transport
l has been stored under adverse conditions for a lengthy
period of time
l is visibly damaged
l no 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:
l EEC directives for protective labor legislation
l National protective labor legislation
l Safety regulations
l Safety datasheets of the chemical manufacturers.
Safety
18
Commissioning
19
3 Commissioning
3.1 Scope of delivery
l The inoLab Level 3 Set includes: inoLab Level 3 terminal,
Level 3 measuring module and probe
(depending on the composition of the inoLab Level 3 set)
l Operating and display instrument
– inoLab Level 3 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).
l Measuring module (active multifunction box)
– inoLab Level 3 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
l Software MultiLab pilot on CD-ROM
l Connecting cable AK M-PC from the measuring module
to the PC
l Operating manual for terminal and measuring module
Commissioning
20
3.2 Preparing the inoLab Level 3 measuring
system
A measuring module that is ready for operation looks as
follows:
1 Cable holder
2 Stand rod
3 Opening to the cable shaft
4 Connection cable to the terminal (AK M-T)
6 Locking holder
7 Beaker with test solution
8 Probe
9 Freely adjustable probe holder
10 Locking key for probe holder
11 Connection cable: Probe - measuring module
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wtw inoLab 740 Operating instructions

Category
Measuring, testing & control
Type
Operating instructions
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