Dismounting, Return And Disposal - WIKA TR21-A Mode D'emploi

10. Faults / 11. Dismounting, return and disposal
In the case of critical installations, we recommend calculating the harmonic frequency of
the thermowell according to ASME PTC 19.3 or Dittrich/Klotter. This engineering service is
offered by WIKA.
EN
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 11.2 "Return".

11. Dismounting, return and disposal

WARNING!
Residual media in dismounted instruments can result in a risk to persons, the
environment and equipment.
Take sufficient precautionary measures.
11.1 Dismounting
WARNING!
Risk of burns!
Let the instrument cool down sufficiently before dismounting it!
During dismounting there is a risk of dangerously hot pressure media
escaping.
Only disconnect the resistance thermometer and the thermowell once the system has been
depressurised!
22 WIKA operating instructions model TR21