8. Faults / 9. Dismounting, return and disposal
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
EN
the manufacturer. If a return is needed, follow the instructions given in chapter 9.2 "Return".
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!
9.2 Returns
WARNING!
Absolutely observe the following when shipping the instrument:
All instruments delivered to WIKA must be free from any kind of hazardous substances
(acids, leachate, solutions, etc.).
When returning the instrument, use the original packaging or a suitable transport package.
Enclose the completed return form with the instrument.
The return form can be found under the heading 'Service' at www.wika.com
30
WIKA operating instructions pressure switch model PSA-31 for sanitary applications