WIKA 712.15.100 Mode D'emploi page 11

7. Transmitter for level measurement
Trouble shooting
Defect
No signal output
Steady signal
despite pressure
variation
Steady and too high
signal despite of
pressure variation
Full span reading too low Supply voltage too low
Zero signal too low
Zero signal too high
WIKA operating instructions differential pressure gauge models 712.15.100, 732.15.100
Possible reason
Failure of power supply
Wiring interrupted (or broken)
Transmitter incorrectly wired
No pressure
Open press. compensation valve
Electronic defect e.g. through
incorrect supply voltage
or stray voltage spikes
Pressure entry blocked
Open press. compensation valve Close pressure compensation valve
Electronic defect e.g. through
incorrect supply voltage
or stray voltage spikes
Ferngeber defekt nach
mechanischer Überbelastung
Electronic defect through
incorrect supply voltage
or stray voltage spikes
Load impedance too high
Wrong scale selected
Wrong zero compensation
Wrong zero compensation
Transmitter over-pressured
Remedy
Check power supply and wiring
replace defective components
Check wiring;
if necessary rectify it
Check tailpipes
Close pressure compensation valve
Return pressure gauge to
manufacturer for repair
Check tailpipes and pressure entry
bore, if necessary clean it carefully
Return pressure gauge to
manufacturer for repair
Return pressure gauge to
manufacturer for repair
Return pressure gauge to
manufacturer for repair
Adjust supply voltage
Consider permissible max. load
Check position of scale selection
switch
Readjust zero point
Readjust zero point
Return pressure gauge to
manufacturer for repair
GB
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