Endress+Hauser CCS120D, Operating Instructions Manual

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CCS120D Maintenance
Hauser 29
Cleaning sensor membrane
If the membrane is visibly soiled, proceed as follows:
1. Remove sensor from flow assembly.
2. Only clean membrane mechanically with a gentle jet of water.
9.2.2 Filling membrane cap with fresh electrolyte
Please note the information on the safety data sheet to ensure safe use of the electrolyte.
NOTICE
Damage to membrane and electrodes, air bubbles
Possibility of measured errors to complete failure of the measuring point
‣
Avoid damage to membrane and electrodes.
‣
The electrolyte is chemically neutral and is not hazardous to health. Nonetheless, do not
swallow it and avoid contact with eyes.
‣
Keep the electrolyte bottle closed after use. Do not transfer electrolyte to other vessels.
‣
Do not store electrolyte for longer than one year. The electrolyte must not be yellow in
color. Observe the use-by date on the label.
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Avoid air bubbles when pouring electrolyte into membrane cap.
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Only use membrane cap once.
Fill the membrane cap with electrolyte→  20
9.2.3 Replacing membrane cap
1. Remove sensor from flow assembly.
2. Remove membrane cap →  30.
3. Fill new membrane cap with fresh electrolyte →  20.
4. Check the condition of the sealing ring and check whether the sealing ring is mounted
on the shaft.
5. Screw new membrane cap onto sensor shaft →  30.
6. Reset operating hours counter for membrane cap on transmitter. For detailed
information, see Operating Instructions for transmitter.