55
W3T331759 / WT.050.585.003.UE.IM.1014
MICRO/2000® AND DEOX/2000® MODULE
5.2.10 Probe electrolyte and electrodes
The analyser performs best when the probe is left undisturbed as much
as possible. Manual cleaning of the probe electrodes should not be done
unless necessary, as this will require recalibration of the analyser.
CAUTION :
Do not sand the probe electrodes! The electrodes are made
of a thin film of platinum and cannot be replaced or repaired. If sanded,
this thin film of platinum will be quickly removed and the probe will no
longer function. If cleaning is necessary, a clean paper towel may be used.
Check the electrolyte level occasionally and maintain the level so that it
is at least visible through the clear section of the probe with the probe in
the installed position. If the electrolyte level drops noticeably in less than
a month, the porous element is leaking excessively. The porous element is
intended to allow a slight flow of electrolyte and excessive flow will not
harm the performance of the analyser unless the probe is allowed to run out
of electrolyte. If excessive use of electrolyte becomes a nuisance (requires
constant monitoring of the level), replace the porous element and check the
element bore for damage that would hinder the sealing around the element.
Also, check if the electrolyte has become contaminated. This is usually
indicated by a color change or by the electrolyte becoming watery. It
is not unusual for the electrolyte to become alternately cloudy and then
clear, this can be caused by changes in water or ambient temperature.
5.2.11 Probe cleaning, refilling and porous element replacement
The probe cannot be disassembled (all joints are cemented). It is not
serviceable except for the following maintenance operations.
NOTE:
The analyser will perform best when the probe is left undisturbed as
much as possible.
Check the electrolyte level and refill as necessary.
Clean the electrodes by wiping blue abrasive paper or with a clean paper
towel. If there is a greasy film on the electrodes, this can be removed by
cleaning with a paper towel dipped in alcohol. If there are hard deposits
on the electrodes, this can be removed by wiping the electrodes with a
clean paper towel dipped in muriatic acid (10% hydrochloric acid). The
analyser will require recalibrations after 24 hours of operation after the
electrodes are cleaned.
Содержание WALLACE & TIERNAN DEOX/2000
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