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Pressure gauges with inductive contact model 831, for hazardous areas
14320154.01 06/2019 EN/DE
EN
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.
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For these media, in addition to all standard regulations, the appropriate exist-
ing codes or regulations must also be followed.
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Wear the requisite protective equipment.
For contact details see chapter 1 “General information” or the back page of the
operating instructions.
Faults
Causes
Measures
Contact is no longer switching in
accordance with the specification.
Electrical connection is
interrupted.
Carry out a continuity test on
the electrical connection lines.
Electrical load unsuitable for
the switch contact model.
Maintain the permissible
electrical loads for the switch
contact model.
Contact contaminated.
Residual current protection device
for the circuit is tripped.
Insulation failure
Replace instrument.
Contact chatter (repeated,
short-duration opening and
closing).
Vibrations
Decouple the instrument
mechanically.
No pointer movement despite
change in pressure.
Movement blocked.
Replace instrument.
For the exchange of the instrument chapters 8 “Dismounting, return and disposal” and
5 “Commissioning, operation” must be observed.
6. Faults
