Metrohm 901 Titrando - Manual (Page 47)

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4 Karl Fischer titration
901 Titrando
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4.1.7.3 Indicator electrode
A new indicator electrode can take a certain warm-up time for forming
the surface. During this time unexpectedly long titration times and high
measurement results can occur. This phenomenon will, however, disap-
pear after a short time of use. In order to accelerate the setting of a new
indicator electrode, the 901 Titrando can be conditioned e.g. over night.
A contaminated indicator electrode can be carefully cleaned with an abra-
sive agent (6.2802.000 polishing set or toothpaste). After the cleaning,
rinse with ethanol.
The two Pt wires of the indicator electrode should run as parallel as possi-
ble to one another. Check the Pt wires before inserting the electrode.