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17 Trouble shooting and fault removal
Symptoms
There is no signal.
Output signal = 0 mA
There is no signal.
Output signal = 0 mA
Deviation of the zero-point
signal
Deviation of the zero-point
signal
Output signal does not react
to pressure changes
Output signal does not react
to pressure changes
Caution!
In the event that the faults cannot be removed through the measures listed above, the
pressure transformer needs to be removed from service. It must be ensured that pressure
or a signal is no longer applied, and that the pressure transducer is protected against unin-
tentional start-up.
Please contact the manufacturer.
®
METPOINT
SP11
Possible reasons
Break of the signal line
Incorrect wiring of the plug
Overload limit was exceeded
Operating temperature outside of
the specification
Overload through overpressure
Operation outside of the specifica-
tion
Load too high (load resistance)
Supply voltage too low
Trouble shooting and fault removal
Measures
Check the passage
Check the wiring.
Observe the PIN assignment.
Replace the pressure transducer.
Observe the permissible pressures.
Observe the permissible tempera-
tures.
Replace the pressure transducer.
Check the voltage.
Check the resistance.
25
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