Hach-Lange ULTRATURB sc basic_plus_seawater - Manual (Page 22)

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Maintenance
9. Remove the screw top and the sealing plug for the measuring chamber and
accept OPEN MEAS. CHAMBER.
10. Remove the wiper holder and accept REMOVE WIPER HOLDER (only for
plus and for seawater version).
11. Clean the measuring chamber and accept CLN. MEAS CHAMB.
12. Re-fit the wiper holder and accept REPLACE WIPER HOLDER (only for plus
and seawater version).
13. Seal the measuring chamber again with sealing plug and screw top and
accept CLOSE MEAS. CHAMBER.
14. Open the sample feed and accept TURN OFF SAMPLE INLET.
An automatic wipe is performed.
5.3 Replacing wiper profiles (only plus and seawater version)
The life of the wiper profiles is, on the one hand, dependent on the number of
cleaning actions performed, and on the other hand is also dependent on the type
of deposits to be removed. Thus the life of the wiper profiles varies from case to
case.
The wiper profiles supplied with the instrument are sufficient to the cover
requirements for an average year.
1. Open the MAIN MENU.
2. Choose SENSOR SETUP and accept.
3. Choose the related sensor and accept.
4. Choose TEST/MAINT and accept.
5. Choose MAINT. PROC and accept.
6. Choose REPLACE PROFILE and accept.
7. Shut-off the feed and accept TURN OFF SAMPLE INLET.
8. Drain the measuring chamber via the lower feed union and accept DRAIN
MEAS. CHAMBER.
9. Remove the screw top and the sealing plug for the measuring chamber and
accept OPEN MEAS. CHAMBER.
10. Remove the wiper holder and accept REMOVE WIPER HOLDER.
11. Clean the measuring chamber and accept CLN. MEAS CHAMB.
12. Renew the wiper profiles and accept REPLACE PROFILE.
13. Re-fit the wiper holder and accept REPLACE WIPER HOLDER.
14. Seal the measuring chamber again with sealing plug and screw top and
accept CLOSE MEAS. CHAMBER.
15. Open the sample feed and accept TURN OFF SAMPLE INLET.
An automatic wipe is performed.