Troubleshooting - WIKA PGT23.100 Betriebsanleitung

10. Troubleshooting

10. Troubleshooting
Defect
No signal output
Steady signal, despi-
te pressure changes
Steady and exces-
sively high signal,
despite pressure
changes
Full span reading
too low
Zero signal too low/
too high
WIKA Operating Instructions intelliGAUGE family
Possible reason
Failure of power supply or
wiring interrupted
Transmitter miswired
No pressure (only 3-wire)
Electronic defect through incor-
rect supply voltage or external
voltage
Pressure entry blocked
Supply voltage connected the
wrong way round
(I = approx. 4.5 mA)
Transmitter failure
Bridge between terminals 5
and 6 (I = approx. 9.5 mA) was
not removed
Electronic defect through incor-
rect supply voltage or external
voltage
Supply voltage too low
Load impedance too high
Zero point shifted
Zero point shifted
Remedy
Check power supply and
wiring; replace defective
components
Check wiring; if necessary
rectify it
Check tailpipes
Return instrument to manufac-
turer for repair
Check tailpipes and pressure
entry bore, if necessary clean
it carefully
Check the clamping and, if
necessary, change terminals 1
and 2 around
Return instrument to manufac-
turer for repair
Open the cable hood and
remove the bridge between the
terminals 5 and 6
Return instrument to manufac-
turer for repair
Adjust supply voltage
Consider permissible max. load
Readjust the zero point (see
chapter 9)
Readjust the zero point (see
chapter 9)
EN
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