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3 Troubleshooting and Maintenance
Sensoface
Electrode Monitoring
The automatic Sensoface
provides information on the electrode state. It evaluates
zero point, slope and response time of the electrode.
The deterioration of the electrode condition is signified by
Note
or
of the Sensoface
This devaluation is permanent. An improvement
only take place after a calibration.
This Sensoface
trode response time, i.e. on the amount of time an elec-
trode requires to supply a stable measured value. The
value is determined during calibration.
Due to wear, aging and as the result of incorrect handling,
e.g. drying out, the swelling layer of the glass membrane of
an electrode may recede. This leads to a longer response
time and the electrode becomes sluggish.
The electrode response is slow. You should consider
maintaining or replacing it. It may be possible to
achieve an improvement by cleaning or, for an elec-
trode returned to duty after dry storage, by rehydrat-
ing.
The electrode response is very slow. Correct measure-
ment is no longer ensured. The electrode should be
maintained. If appropriate maintenance fails to remedy
the situation, the electrode should be replaced.
electrode monitoring system
indicator ("smiley").
display provides information on the elec-
Maintenance and Troubleshooting 17
can
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