Maintenance And Cleaning - WIKA E-10 Betriebsanleitung

6. Faults / 7. Maintenance and cleaning
Fault
Signal span drops/too small
Signal span too small
Signal span drops
Signal span varies
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.
WIKA operating instructions pressure transmitter, models E-10 and E-11
Possible cause
Diaphragm damaged, e.g. due to impacts, abrasive/
aggressive medium; corrosion at diaphragm/pressure
connection; transmission medium missing
Supply voltage too high/low
Mechanical overload caused by overpressure
Moisture has entered (e.g. at the cable end)
EMC interference sources in the environment, e.g.,
frequency converter
Instrument not grounded
Strongly fluctuating supply voltage
Strongly fluctuating pressure of the process medium
Measure
Contact manufacturer and replace
instrument
Correct the supply voltage according
to the operating instructions
Replace instrument
Fit the cable correctly
Shield instrument; cable shield;
remove source of interference
Ground the instrument
Stabilise supply voltage, suppress
interference
Dampening; consulting by the
manufacturer
EN
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