9.2.4 Cleaning the UV Sensor
1.
Loosen the sensor connection cable from the UV sensor
2.
Turn the UV sensor out of the radiation chamber
3.
Clean the quartz window with a cloth that has been saturated
with cleaning solution until the coating has been removed
without leaving a trace
4.
Rinse the quartz window with clean water and dry with a soft
cloth
5.
Examine the O-ring for damage and replace any damaged
seals
6.
Screw in the UV sensor again and tighten; very little effort is
needed for this
7.
Connect the sensor connection cable to the UV sensor
8.
Slowly open the shut-off valve upstream of the radiation
chamber
9.
Fill the radiation chamber until water emerges from the vent
plug
10. Close the air vent plug and tighten; very little effort is needed
for this
11. Open the shut-off valve downstream of the radiation chamber
(only necessary with a manual shut-off valve)
ð
Check that the radiation chamber is not leaking
12. Switch on the main switch or connect to the mains power
supply
ð
The UV-system is again ready for operation.
Maintenance
68
