WIKA PGT43.100 - Manual (Page 19)

GB
10. Troubleshooting
Defect Possible reason Remedy
No signal output Failure of power supply or
wiring interrupted Check power supply and
wiring; replace defective
components
Transmitter miswired Check wiring; if necessary
rectify it
No pressure (only -wire) Check tailpipes
Electronic defect through incor-
rect supply voltage or external
voltage Return instrument to manufac-
turer for repair
Steady signal, despite
pressure changes Pressure entry blocked Check tailpipes and pressure
entry bore, if necessary clean it
carefully
Supply voltage connected the
wrong way round
(I = approx. 4.5 mA) Check the clamping and, if
necessary, change terminals 1
and around
Transmitter failure Return instrument to manufac-
turer for repair
Steady and exces-
sively high signal,
despite pressure
changes Bridge between terminals 5
and 6 (I = approx. 9.5 mA) was
not removed Open the cable hood and
remove the bridge between the
terminals 5 and 6
Electronic defect through incor-
rect supply voltage or external
voltage Return instrument to manufac-
turer for repair
Full span reading too
low Supply voltage too low Adjust supply voltage
Load impedance too high Consider permissible max. load
Zero point shifted Readjust the zero point (see
chapter 9)
Zero signal too low/
too high Zero point shifted Readjust the zero point (see
chapter 9)
11
97
64 05/
009 GB/D/F/E
WIKA Operating Instructions intelliGAUGE family 19
10. Troubleshooting