WIKA PSD-31 - Manual (Page 31)

31 WIKA operating instructions pressure switch model PSD-3x
GB
11430486.06 02/2012 GB/D/F/E
9. Dismounting, return and disposal
WARNING!
Residual media in dismounted pressure switches can result in a risk to persons, the
environment and equipment.
Take sufficient precautionary measures.
9.1 Dismounting
Only disconnect the pressure switch once the system has been depressurised!
9. Dismounting, return and disposal
Problem Possible cause Measure
Signal span drops Humidity has entered Assemble the cable correctly
Signal span drops/too small Diaphragm damaged, e.g. due to
impacts, abrasive/aggressive medium;
corrosion at diaphragm/process
connection
Contact manufacturer and replace
instrument
If complaint is unjustified, we will charge you the complaint processing fees.
CAUTION!
If deficiencies 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, follow the instructions given in chapter 9.2 "Return".