Faults - WIKA MH-3 Manual De Instrucciones

6. Faults

6. Faults
CAUTION!
Physical injuries and damage to property and the environment
If faults cannot be eliminated by means of the listed measures, the
pressure sensor must be taken out of operation immediately.
▶
Ensure that pressure or signal is no longer present and protect against
accidental commissioning.
▶ Contact the manufacturer.
▶ If a return is needed, please follow the instructions given in chapter 8.2
"Return".
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 tempe-
rature and under high pressure or vacuum may be present at the
instrument.
▶ For these media, in addition to all standard regulations, the appropriate
existing codes or regulations must also be followed.
▶
Wear the requisite protective equipment (see chapter 3.4 "Personal
protective equipment").
For contact details see chapter 1 "General information" or the back page
of the operating instructions.
Faults
Plastic has faded
No output signal
No/wrong output signal
Constant output signal upon
change in pressure
WIKA operating instructions, OEM pressure sensor, model MH-3
Causes
UV irradiation
Cable break
No/wrong supply voltage
Wiring error
Mechanical overload caused
by overpressure
Measures
No measures required
Discolouration is harmless
Check the continuity, and if
necessary exchange the cable
Rectify the supply voltage
Rectify the wiring
Replace instrument; if it
fails repeatedly, contact the
manufacturer.
EN
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