WIKA PGS23 Betriebsanleitung Seite 19

6. Faults
WARNING!
Physical injuries and damage to property and the environment caused by
hazardous media
Upon contact with hazardous media (e.g. oxygen, acetylene, flammable or toxic
substances), harmful media (e.g. corrosive, toxic, carcinogenic, radioactive),
and also with refrigeration plants and compressors, there is a danger of physical
injuries and damage to property and the environment.
Should a failure occur, aggressive media with extremely high temperature and
under high pressure or vacuum may be present at the instrument.
▶ For these media, in addition to all standard regulations, the appropriate exist-
ing codes or regulations must also be followed.
Wear the requisite protective equipment.
▶
For contact details see chapter 1 "General information" or the back page of the
operating instructions.
Faults
Contact is no longer switching in
accordance with the specification.
Residual current protection device
for the circuit is tripped.
Contact chatter (repeated,
short-duration opening and
closing).
No pointer movement despite
change in pressure.
For the exchange of the instrument chapters 8 "Dismounting, return and disposal" and
5 "Commissioning, operation" must be observed.
Pressure gauges with inductive contact model 831, for hazardous areas
Causes
Electrical connection is
interrupted.
Electrical load unsuitable for
the switch contact model.
Contact contaminated.
Insulation failure
Vibrations
Movement blocked.
Measures
Carry out a continuity test on
the electrical connection lines.
Maintain the permissible
electrical loads for the switch
contact model.
Replace instrument.
Decouple the instrument
mechanically.
Replace instrument.
EN
19