Instruction Manual DualScat Ex
30
10118E/5
Action
11.
Slide the back part of the instrument in place
and retighten the six screws.
12.
Be sure to retighten the hex-head screw
(step 10)!
If you find you have to replace the desiccant frequently, have a SIGRIST ser-
vice technician check whether the Ex enclosure is still tight.
5.4
Cleaning the sensor head
Any fouling of the sensor head will be largely compensated by DualScat Ex.
But after a certain amount of duty time – depending on the service conditions
and the medium – the extent of fouling may become too great to be compen-
sated.
Action
1.
Make sure the product pipe is empty.
2.
Disconnect the power supply to the control
unit.
3.
Remove the photometer from the product
pipe.
4.
Clean the sensor head including the glass (ar-
row) with an acidic, nonabrasive cleaning
agent and a soft, lint-free rag.
Do not use any other cleaning methods or
cleaning agents!
5.
Remove the blanking glass or blanking plate
opposite the photometer from the in-line
housing (arrow) and clean its inner surface
the same way.
6.
Mount the blanking glass or blanking plate
and the photometer on the pipe and restart
the instrument.
Clean sensor head
Summary of Contents for DualScat Ex
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