11116552.11 EN/DE/FR/ES 03/2022
19
WIKA operating instructions pressure transmitter, models E-10 and E-11
EN
Fault
Possible cause
Measure
Signal span drops/too small
Diaphragm damaged, e.g. due to impacts, abrasive/
aggressive medium; corrosion at diaphragm/process
connection; transmission medium missing
Contact manufacturer and replace
instrument
Signal span too small
Supply voltage too high/low
Correct the supply voltage according
to the operating instructions
Mechanical overload caused by overpressure
Replace instrument
Signal span drops
Moisture has entered (e.g. at the cable end)
Fit the cable correctly
Signal span varies
EMC interference sources in the environment, e.g.,
frequency converter
Shield instrument; cable shield;
remove source of interference
Instrument not grounded
Ground the instrument
Strongly fluctuating supply voltage
Stabilise supply voltage, suppress
interference
Strongly fluctuating pressure of the process medium
Dampening; consulting by the
manufacturer
1) After the adjustment, check that the system is functioning correctly. If the error persists, send the instrument for repair (or replace the instrument). If the problem
persists, contact our sales representative.
7. Maintenance and cleaning
7.1 Maintenance
This pressure transmitter is maintenance-free.
Repairs must only be carried out by the manufacturer.
7.2 Cleaning
CAUTION!
Unsuitable cleaning agents
Cleaning with unsuitable cleaning agents may damage the instrument and the product label.
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Do not use any aggressive cleaning agents.
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Do not use any hard or pointed objects.
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Do not use any abrasive cloths or sponges.
6. Faults / 7. Maintenance and cleaning
