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TriOxmatic
®
700 (SW)
Maintenance, cleaning, disposal, and replacement
67
ba25307e06
07/2015
5.4
Cleaning the electrodes
The counter electrode and reference electrode always show a
coloration. This is necessary for the operation of the sensor.
This is not contamination. Cleaning is only required in cases of slopes
that are too small or too large (the sensor cannot then be calibrated)
that cannot be resolved by changing the membrane cap and electrolyte
solution.
Caution
Before unscrewing the membrane cap, disconnect the sensor
from the instrument. Otherwise, undesirable electrochemical
reactions can occur that may lead to the destruction of the sensor.
Preparatory activities
Caution
The ELY/A electrolyte solution irritates eyes, skin and mucus
membranes. If it comes into contact with the eyes, rinse
thoroughly with water and consult a doctor! During working
activities, always wear suitable protective gloves and protective
goggles/face shield! Follow the safety datasheet.
1
Pull the sensor out of the sample.
2
Get rid of any coarse contamination on the sensor (e.g. brush
it off in a bucket of tap water, wash it down with a hose or wash
it off with a cloth).
3
Disconnect the sensor from the instrument.
4
Unscrew the protective hood from the sensor.
5
Unscrew the membrane cap (for disposal of
membrane cap and electrolyte solution, see section 5.7).