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Maintenance
Work
Check the sensor regularly for dirt, deposits and air bubbles!
Avoid, as far as is possible, contamination of the membrane with particles, deposits/
sediments, etc. Eliminate air bubbles by in creasing the fl ow.
Check the sensor display value at the control equipment regularly using suitable reference
methods (Photometry).
If necessary, re-calibrate the sensor.
If calibration is no longer possible, clean or replace the membrane cap and then repeat
calibration (see “Assembly”, “Running-in time” and “Calibration”).
Cleaning the Membrane
Do not unscrew the membrane cap!
Wipe the membrane with a damp cloth.
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BA_DR_002_02_09_GB_Cooling.indd 55
24.02.2009 11:56:06 Uhr
24.02.2009 11:56:06 Uhr