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Maintenance
Cleaning the glass cylinder
. Push the wiper of the cleaning device 4 Fig. 5 up and down. When doing so Alarm and/or Alarm
2 or Malfunction may be triggered (depending on the time delay setting) and the amber LED is
flashing.
2. Return the wiper of the cleaning device 4 to its initial position (the plunger protrudes approx.
70 mm from the equipment).
The cleaning interval (e. g. once a week) depends on the amount of dirt deposits.
Replacing the drying cartridge
Replace drying cartridge when its content turns pink. Should this happen too often check the following
items for tight shut-off:
O-rings of light emitter
■
Cable glands of light emitter and light receiver
■
Gaskets of connectors and drying cartridge
■
Replacing the light emitter/receiver
. Undo fixing screw and remove connector from light emitter/receiver.
2. Unscrew union nut (outside) of the light emitter/receiver tube and detach the emitter/receiver from
the body of the measuring transducer.
3. Replace the light emitter/receiver. Make sure that the locating pin of the emitter/receiver fits into
the groove of the light emitter/receiver.
4. Tighten external union nut.
5. Attach connector to light emitter/receiver and tighten the fixing screw.
6. Correct the zero point when the measuring transducer in programming mode (Parameter Value
Offset).
Please observe the notes on the spare parts kit "Light".
Attention
Do not open the measuring transducer!
Replacing the equipment fuse
. Open the housing lid of the measuring transducer. Observe the warning note!
2. Turn the fuse carrier to the left and take it off.
3. Replace the equipment fuse.
4. Fit fuse carrier in place and turn it to the right. Close housing lid.
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