5
OPERATION
34
OPTISYS CL 1100
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03/2016 - 4002492302 - MA OPTISYS CL 1100 R03 en
5.4 Troubleshooting
Problem
Possible cause
Remedy
The measurement is inaccurate.
This is probably due to coatings
on the sensors.
The sensor needs to be cleaned.
Use automatic sensor cleaning
or, if this does not help, clean the
sensor with a soft cloth. For
further information refer to
Automatic sensor cleaning
on
page 35.
Flow velocity is not stable.
Regulate and stabilise the flow
velocity.
The sensor slope appears to be
too small.
This is probably due to coatings
on the sensors.
The sensor needs to be cleaned.
Use automatic sensor cleaning
or, if this does not help, clean the
sensor with a soft cloth. For
further information refer to
Automatic sensor cleaning
on
page 35.
Flow velocity out of
specifications.
Adjust the flow to the specified
range.