Metrohm 840 PC Control 6.0 / Touch Control - Manual (Page 22)

2.1 Coulometric Karl Fischer titrations (KFC) ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
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Control device
Selection of the control device from the list of devices. Only those devices
are displayed which are able to carry out the command. The control devi-
ces do not have to be connected. This allows to transfer methods more
easily from one system to another.
Selection Selection of configured control devices
2.1.7 Sensor
Under [Sensor], the parameters for the sensor are edited.
Sensor
Selection of the sensor from the sensor list. The selection depends on the
measuring mode. Sensors are defined under System
▶ Sensors. You can
also enter a sensor name which is not contained in the sensor list. When a
determination is started there is a check whether the sensor is contained
in the sensor list.
Selection Selection of configured sensors
I(pol)
The polarization current is the current that is applied to a polarizable elec-
trode during the voltametric measurement.
Selection 5 µA | 10 µA | 20 µA | 30 µA
Default value 10 µA
Electrode test
on | off (Default value: off)
For polarizable electrodes and the generator electrode, an electrode test
can be carried out. The following will be tested:
￭ Polarizable electrodes
– Is the electrode connected?
– Is there a short circuit?
The electrode test is carried out when this command is started.
￭ Generator electrode:
– Is the electrode connected?
– Is the generator system defective?
– Is the resistance of the sample solution very high?
The electrode test is carried out continuously during the execution of
this command.
Temp. measurement
Type of temperature measurement.