Endress+Hauser Oxymax W COS51D, Руководство по эксплуатации

Страница: 23 / 36

Oxymax W COS51D Maintenance
Hauser 23
To replace the electrolyte, proceed as follows:
1. Remove the membrane cap.
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.
7.2.3 Replacing the membrane cap
Removing the old membrane cap
1. Remove the sensor from the medium.
2. Unscrew the protection guard.
3. Clean the outside of the sensor.
4. Unscrew the membrane cap.
5. If necessary, clean the cathode or replace the sealing ring if it is damaged.
6. Rinse the electrode holder with drinking water.
Installing the new membrane cap
7. Make sure that there are no dirt particles on the sealing surface.
8. Fill the complete contents of a plastic ampoule (containing electrolyte COY3-F) into the
membrane cap.
9. Remove all the air bubbles in the electrolyte by tapping the side of the membrane cap (e.g. with
a pencil).
10. Hold the sensor body at an angle and carefully screw the membrane cap onto it down to the
stop.
11. Screw the protection guard back on.
12. Reset the calibration counter (Liquiline calibration menu, "Cap replacement").
!
Note!
After replacing the membrane cap, polarize and recalibrate the sensor. Then insert the sensor into
the medium and check that no alarm is displayed on the transmitter.