9
5 Trouble shooting
Type of fault Possible cause Handling
No output signal No supply voltage Check supply voltage
Cable break, incorrect connection Check connecting cables
No input pressure Check connection to the pressure
medium
Fault in pressure transmitter, caused
by impermissible operating conditions
Return the pressure transmitter to the
supplier, with a detailed description of
the fault
Output signal stays con-
stant, even though the
pressure changes
Measurement system of the instrument
has been destroyed by excessive pres-
sure
Output signal from the pressure trans-
mitter is being distorted by the current
limiting, resulting from overvoltage
Provide the correct supply voltage
Measurement range is too small
– return the pressure transmitter to the
supplier, with a detailed description of
the fault
Measurement point is blocked Check measurement point, if neces-
sary clean or replace it
Output signal too high Selected measurement range is too
low
Return the pressure transmitter to the
supplier, with a detailed description of
the fault
The electronics of the pressure trans-
mitter is faulty, or the supply voltage is
too high
Output signal too low With current output signal: burden is
too high
With voltage output signal: burden is
too low
Change the burden on the measure-
ment circuit
Supply voltage is too low Alter the supply voltage
Zero of the output signal is
wrong
Pressure transmitter measurement has
shifted because of impermissible oper-
ating conditions (e.g. overpressure)
Return the pressure transmitter to the
supplier, with a detailed description of
the fault
Output signal characteris-
tic is not linear
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