SUMMARY
Content Index
1.
Description of the instrument.......................................................................................................1
1.1
Display LCD ................................................................................................................................1
1.2
Connections for the probe ..........................................................................................................1
1.3
Keypad ........................................................................................................................................2
1.3.1
Keypad operations ...............................................................................................................2
1.3.2
Switching on the instrument .................................................................................................2
1.3.3
Switching off the instrument .................................................................................................2
1.3.4
Auto power off ......................................................................................................................2
1.4
Function of the keys ...................................................................................................................3
2.
Information about oxygen probe DO7/3mt .................................................................................3
2.1
Sensing element .........................................................................................................................4
2.2
Membrane ...................................................................................................................................4
2.3
Electrolyte ...................................................................................................................................4
2.4
Polarization time .........................................................................................................................4
2.5
New sensor with new instrument ................................................................................................4
2.6
Probe storage .............................................................................................................................4
2.7
Not using the sensor for a long period of time: over one month ................................................4
3.
Calibration of the oxygen sensor .................................................................................................5
3.1
Calibration in air at 100% ...........................................................................................................5
3.2
Calibration with zero oxygen standard .......................................................................................5
3.3
Calibration interval ......................................................................................................................6
4.
Dissolved oxygen measurement ..................................................................................................6
4.1
Before starting ............................................................................................................................6
4.2
Methods of measurement ...........................................................................................................6
4.3
Making the measurement ...........................................................................................................7
4.4
Compensation of the barometric pressure .................................................................................7
4.5
Salinity compensation (manual) .................................................................................................7
4.6
Automatic temperature Compensation ( ATC) ...........................................................................7
4.7
Manual Temperature Compensation (MTC) ...............................................................................7
5.
Maintenance of the probe DO7/3mt .............................................................................................8
5.1
Replacing the electrolyte ............................................................................................................8
5.2
Maintenance of the anode and the cathode ...............................................................................8
5.3
Replacing the membrane cap ....................................................................................................8
6.
Error messages ..............................................................................................................................9
7.
Restore to factory default setting ................................................................................................9
8.
Replacing the batteries .................................................................................................................9
9.
Parameter settings.......................................................................................................................10
9.1
Setup Menu ..............................................................................................................................10
9.2
Parameters of the setup menu and factory default settings .................................................... 11
10.
Calibration of temperature sensor ............................................................................................. 11
10.1
Useful information ..................................................................................................................... 11
10.2
Calibration procedure ............................................................................................................... 11
11.
Technical specifications .............................................................................................................12
12.
Accessories and spare parts ......................................................................................................13
13.
Disposal of electronic devices ...................................................................................................13
