Endress+Hauser OxyMax W COS 71, Руководство по эксплуатации

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OxyMax W COS 71 6 Maintenance
Hauser 19
To replace the electrolyte, proceed as follows:
1. Remove the membrane cap (see Chap. 6.2.4).
2. Replace the electrolyte and, if necessary, the membrane cap.
3. Place the membrane cap back on the membrane body and screw the cap to the
stop. See chapter 6.2.4.
#
Warning!
Risk of acid burns!
The electrolyte is strongly alkaline. You must follow the appropriate occupational safety
regulations. Always wear protective gloves and goggles with handling electrolytes.
6.2.4 Replacing the membrane cap
1. Remove the sensor from the medium.
2. Unscrew the protection basket.
3. Clean the outside of the sensor (see page 17).
4. Unscrew the membrane cap.
5. If necessary, clean the gold cathode (page 18) or replace the sealing ring if it is dam-
aged (page 18).
6. Rinse the electrode holder with drinking water.
7. Make sure that there are no dirt particles on the sealing surface.
8. Replace the membrane cap as follows:
9. Screw the protection basket back on.
After replacing the membrane cap, polarise and recalibrate the sensor (see chapters
5.2 and 5.3). Then insert the sensor into the medium and check that no alarm is dis-
played on the transmitter (if an alarm occurs, see Chap. 8.1).
Pour the complete contents of a plastic
ampoule (containing electrolyte COY3-F) into the
membrane cap.
Remove all the air bubbles in the electrolyte by
tapping the side of the membrane cap (e.g. with a
pencil).
Hold the sensor body at an angle and carefully
screw the membrane cap onto it down to the stop .
C07-COS41xxx-17-05-00-xx-001.EPS