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WIKA operating instructions, model MG-1
11609681.03 08/2019 EN/DE/FR/ES
EN
8. Faults / 9. Dismounting, return and disposal
Faults
Causes
Measures
Deviating zero point signal
Operating temperature too high/low
Observe the permissible temperatures (see Chapter
"3. Specifications")
Constant output signal upon change
in pressure
Mechanical overload caused by
overpressure
Replace pressure sensor; if it fails repeatedly,
contact the manufacturer
Signal span too small
Mechanical overload caused by
overpressure
Replace pressure sensor; if it fails repeatedly,
contact the manufacturer
Signal span varies
EMC interference sources in the
environment; for example, frequency
converter
Shield the pressure sensor; Cable shielding; remove
source of interference
Signal span varies/inaccurate
Operating temperature too high/low
Observe the permissible temperatures (see chapter
"3. Specifications")
Signal span drops/too small
Signal span drops/too small
Contact manufacturer and replace pressure sensor
CAUTION!
If deficiencies cannot be eliminated by means of the measures listed above, shut down the instrument
immediately, and ensure that pressure and/or signal are no longer present, and secure the instrument
from being put back into operation inadvertently. In this case, contact the manufacturer. If a return is
needed, please follow the instructions given in chapter “9.2 Return”.
9. Dismounting, return and disposal
WARNING!
Residual media in dismounted pressure sensors can result in a risk to persons, the environment and
equipment.
Take sufficient precautionary measures.
9.1 Dismounting
WARNING!
Only disconnect the pressure sensor once the system has been depressurised!