COM280
Maintenance
Hauser
27
13.2 External sensor cleaning
"
Caution!
After cleaning, rinse the sensor thoroughly with deionized water and then calibrate it again.
13.3 Replacing the membrane cap
#
Warning!
The electrolyte solution irritates the skin and eyes. For this reason:
• Always wear suitable protective gloves and goggles/face mask.
• Wash skin which has come into contact with the electrolyte solution thoroughly with plenty
of water and change wetted clothes immediately.
• If electrolyte gets into your eye, rinse thoroughly with plenty of water and consult a doctor.
• Observe the instructions on the safety data sheet.
The electrolyte and membrane cap have to be replaced in the following situations:
• in the event of calibration errors resulting from a contaminated membrane
• if the membrane is damaged
• if the electrolyte is used up
• if the measuring instrument reports a leak
Fouling
Cleaning
Lime deposits
Immerse the sensor into 20% acetic acid for 1 minute.
Greases/oils
Rinse the sensor with a cleaner containing a surfactant.
Unscrew the basket protector and
membrane cap.
Rinse the sensor head with deionized
water.
Dry the counterelectrode carefully
with a lint-free paper towel.
