WIKA IS-3 Betriebsanleitung Seite 49

9. Faults
Faults
Constant output signal upon change in
pressure
No output signal
No or wrong output signal
Deviating output signal
Deviating zero point signal
Signal span drops
Signal span too small
Signal span varies
1) After the adjustment, check that the system is functioning correctly. If the error still persists, replace the instrument or send it for repair (see chapter 10.2 "Return").
CAUTION!
If faults cannot be eliminated by means of the measures listed above, shut down the instrument immedi-
ately, 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,
follow the instructions given in chapter 10.2 "Return".
WIKA operating instructions pressure transmitter, model IS-3
Causes
Mechanical overload caused by overpres-
sure
Wrong power supply or current pulse
No or wrong power supply, current pulse
Cable break
Wiring error
Span maladjusted
Overpressure limit exceeded
Damage at the process connection
Damage at the process connection
Sealing is damaged or soiled
Sealing does not have a tight fit
Threads jammed
Mechanical overload caused by overpres-
sure
Wrong power supply
Strongly varying pressure of the medium
Measures
Replace instrument; if it fails repeatedly,
contact the manufacturer
Replace instrument
Rectify the power supply
Check the connection cables for continuity
Rectify the wiring
Readjust span and use suitable reference
Readjust zero point
1)
Observe overpressure limit
Replace instrument
Replace instrument; if it fails repeatedly,
contact the manufacturer
If soiled, clean the sealing and the measur-
ing point. If damaged, replace the sealing.
Remove the instrument and seal correctly
Mount the instrument correctly
Readjust the instrument
1)
Rectify the power supply
Damping; consulting by the manufacturer
EN
1)
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