DEPOLOX® 400 M
7. Maintenance
75
EN
7.3 Maintenance parts set for flow
cell
7.3.1 DEPOLOX® 5 C flow cell
non-pressurized version
pressurized version
7.3.2 VariaSens C flow cell
non-pressurized version
pressurized version
7.4 Checking for leaks
Check the entire flow cell every day, including
all screw connections, for leakage. Repair any
leaks immediately.
7.5 Servicing the DEPOLOX® 5 C
flow cell
7.5.1 Checking and replacing the
electrode cleaning sand
The electrode cleaning sand is necessary for
cleaning the 3-electrode cell and must be
replenished or replaced if necessary. The elec-
trode cleaning sand must be checked and
replaced regularly (chapter 5.10.3 and 7.5.4).
Grinds itself down with time. Check the DEPO-
LOX® 5 C flow cell at weekly intervals to make
sure that there is enough electrode cleaning
sand in the cell body. The electrode cleaning
sand must be swirled around in the bottom
part of the cell body.
7.5.2 Checking electrolyte solution level
Check whether the electrolyte solution is filled
approx. 3 cm above water level (narrowing of
the KCL container) and replenish if necessary.
1 Remove the plug in the upper part of the
electrolyte tank.
2 Inject the electrolyte. Use the syringe in
the accessory kit.
Part No.
Designation
W3T170065
Maintenance parts kit,
annually
W3T170071
Maintenance parts kit,
4 years
W3T158882
Spare parts set for flow
control valve
Part No.
Designation
W3T158875
Maintenance parts kit,
annually
W3T170072
Maintenance parts kit,
4 years
W3T158882
Spare parts set for flow
control valve
Part No.
Designation
W3T158876
Maintenance parts kit,
annually
W3T158750
Maintenance parts kit,
4 years
W3T158882
Spare parts set for flow
control valve
Part No.
Designation
W3T158877
Maintenance parts kit,
annually
W3T158879
Maintenance parts kit,
4 years
W3T158882
Spare parts set for flow
control valve
NOTICE
Ascending air bubbles in the cell body influ-
ence the measuring accuracy. The cause
must be determined and remedied.
NOTICE
After adding fresh electrode cleaning sand
or replacing it, the electrode current can
increase slightly for approximately 2 to 3
hours. Calibration is needed after this (chap-
ter 6.6).
