Oxymax H COS21
Maintenance
Hauser
9
2. Clean and dry the membrane.
3. After about 10 minutes, measure the oxygen saturation index in air (without
recalibration).
4. The measured value should be near to 102% SAT.
• If necessary, replace a defective membrane or one which cannot be cleaned any more.
• Recalibration.
(if desired or required)
5.1
Cleaning the sensor
To ensure reliable measurement, the sensor must be cleaned at regular intervals. The frequency
and intensity of the cleaning operation depend on the measuring medium.
Clean the sensor:
• before every calibration
• at regular intervals during operation as necessary
• before returning it for repairs.
Depending on the type of soiling, proceed as follows:
"
Caution!
After cleaning, rinse the sensor with copious amounts of clean water.
5.2
Regenerating the sensor
5.2.1
Replacing the sealing ring
Replacing the sealing ring is only necessary when it is visibly damaged. For replacement, use only
original sealing rings.
5.2.2
Replacing the electrolyte
#
Warning!
Risk of acid burns!
The electrolyte is very caustic. You must follow the appropriate occupational safety regulations.
Always wear protective gloves and goggles with handling electrolytes.
Type of soiling
Cleaning
Salt deposits
Immerse the sensor in drinking water or in 1-5% hydrochloric acid
for a few minutes. Afterwards, rinse it with copious amounts of water.
Dirt particles on the sensor body
(not cap!)
Clean the sensor body mechanically with water and a suitable brush.
Dirt particles on the membrane cap or the
membrane
Clean with water and a soft sponge.
