WIKA MHC-1 - Manual (Page 20)

20 WIKA operating instructions pressure transmitter, model MHC-1
14035467.01 08/2012 GB/D/F/E
GB
Faults Causes Measures
No cyclic transmission PDO mapping
Transmission type incorrect
Check the configuration parameters
Signal span too small/drops Mechanical overload caused by
overpressure
Sealing/sealing face damaged/soiled,
sealing does not have a tight fit, threads
jammed
Replace instrument
Clean the sealing/sealing face,
replace sealing if applicable
Signal span varies/inaccurate Operating temperature too high/low
Strongly varying pressure of the process
medium
Observe the permissible
temperatures
Damping; consulting by the
manufacturer
Deviating zero point signal Operating temperature too high/low
Overpressure limit exceeded
Permissible temperatures
Observe the permissible
overpressure limit
If complaint is unjustified, we will charge you the complaint processing fees.
Error codes
The error codes can be found under "Additional instructions"
The “Additional instructions” are available for download at www.wika.com.
CAUTION!
If faults cannot be eliminated by means of the measures listed above, shut down the
instrument immediately, and ensure that pressure and/or signal are no longer present,
and secure the instrument from being put back into operation inadvertently. In this case,
contact the manufacturer. If a return is needed, please follow the instructions given in
chapter 9.2 "Return".
8. Faults