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5. Faults / 6. Maintenance
Faults
Deviating zero point signal
Zero point varies/inaccurate
Signal span varies/inaccurate
Signal span drops/too small
Signal span drops
6. Maintenance
6.1 Maintenance
This instrument is maintenance-free.
Repairs must only be carried out by the manufacturer.
6.2 Cleaning
Only use commercially available and solvent-free cleaning agents.
When used in strongly contaminated and adhesive media, the pressure port of the submersible pressure sensor has to
be cleaned regularly. The cleaning interval is dependent upon the respective application.
WIKA operating instructions submersible pressure sensor, model LS-1000
Causes
Overpressure limit exceeded
Medium temperature too high/too low
Diaphragm damaged
Contamination of the pressure port caused
by contaminated and adhesive media
Moisture has entered at the cable end
Cable damaged
Medium temperature too high/too low
Mechanical overload caused by
overpressure
Diaphragm damaged
Moisture has entered at the cable end
Cable damaged
Measures
Maintain permissible overpressure limit
Observe the permissible temperatures
Replace instrument; if it fails repeatedly,
contact the manufacturer
Clean the pressure port
Mount the cable correctly
Replace instrument; if it fails repeatedly,
contact the manufacturer
Observe the permissible temperatures
Replace instrument; if it fails repeatedly,
contact the manufacturer
Replace instrument; if it fails repeatedly,
contact the manufacturer
Mount the cable correctly
Replace instrument; if it fails repeatedly,
contact the manufacturer
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