Maintenance And Cleaning; Maintenance; Cleaning - WIKA 732.14.100 Manual De Instrucciones

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7. Faults / 8. Maintenance and cleaning
Fault
No pointer movement
despite change in
pressure.
After depressurisation,
the pointer remains just
above the zero point.
The pointer remains outs-
ide the zero point toleran-
ce after installation and
depressurisation.
Instrument outside the
accuracy class.
Vibration of the pointer.
Mechanical damage
(e.g. window, case).
For the replacement of the instrument chapters 9 "Dismounting, return and dispo-
sal" and 6 "Commissioning, operation" must be observed.

8. Maintenance and cleaning

8.1 Maintenance

The instruments are maintenance-free. The indicator should be checked once or
twice every year. For this the instrument must be disconnected from the process to
check with a pressure testing device.
Level check
For filled instruments, the level must be checked on a regular basis.
The liquid level must not drop below 75 % of the instrument diameter.
Repairs must only be carried out by the manufacturer or appropriately qualified
skilled personnel.
WIKA operating instructions pressure gauge model 7 per ATEX
Cause
Movement blocked.
Pressure element defective.
Pressure port blocked.
Friction in the movement.
Instrument was overloaded.
Material fatigue of the pres-
sure element.
Mounting error: Instrument
not mounted in nominal
position.
Transport damage (e.g.
non-permissible shock
loading).
Instrument was operated
outside of permissible per-
formance limits.
Vibrations in the application. Use instrument with case
Improper handling.
Measure
Replace instrument.
Tap lightly on the case.
Replace instrument.
Check the mounting position.
Replace instrument.
Check the observance of the
operating parameters of the
application.
Replace instrument.
filling.
Replace instrument.
EN
19

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732.51.100

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