SIGRIST DualScat Ex, Инструкция по эксплуатации

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Instruction Manual DualScat Ex
10118E/5 31
5.5 Replacing the O-ring 60 x 3 on the sensor head
or replacing the blanking glass / blanking plate
Action
1. Make sure the product pipe is empty.
2. Disconnect the power supply to the SIREL
control unit.
Make sure the product pipe remains
empty during the entire procedure!
3. Remove the photometer from the product
pipe.
4. Remove the O-ring and replace it with a new,
clean O-ring.
5. Remove the closure clamp (X) on the side of
the blanking glass or plate, then remove the
lock ring (Y).
Scratches on the blanking glass can lead
to incorrect measurements:
Ensure that no scratches occur on the black-
ened outer face and uncoloured inner face
when installing and removing the blanking
glass. Always handle the blanking glass with
care.
6. Press the blanking glass or plate out of the
Varivent housing (from the photometer side).