Maintenance And Cleaning; Faults - WIKA MHC-1 Mode D'emploi

7. Maintenance and cleaning / 8. Faults

7. Maintenance and cleaning

7.1 Maintenance
This instrument is maintenance-free.
Repairs must only be carried out by the manufacturer.
7.2 Cleaning
CAUTION!
Before cleaning, correctly disconnect the instrument from the pressure supply, switch it
■
off and disconnect it from the voltage supply.
Clean the instrument with a moist cloth.
■
Residual media in dismounted instruments can result in a risk to persons, the
■
environment and equipment. Take sufficient precautionary measures.
For information on returning the instrument see chapter 9.2 "Return".

8. Faults

In the event of any faults, first check whether the pressure sensor is mounted correctly, mechanically
and electrically.
Faults
No/wrong output signal
No communication
WIKA operating instructions pressure sensor, model MHC-1
Causes
Cable break
Wiring error
No/wrong power supply
Adjustment of node ID
Transmission rate incorrect
Measures
Check the continuity
Observe the pin assignment
Rectify the power supply
Check the configuration parameters
EN
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