WIKA TR75 - Manual (Page 22)

11325232.04 01/2014 GB/D/F/E
22 WIKA operating instructions DiwiTherm ® , model TR75
GB
Corrosion Composition of the medium
not as expected or modified
or wrong thermowell material
selected
Analyse medium and then
select a more-suitable material
or replace thermowell regularly
Moisture or media fluid in the
housing
No thermowell used (the cable
version is not suitable). No or
faulty sealing used between
neck tube and thermowell.
Contact manufacturer, send
the instrument back (For
information on returning, see
chapter 9.2 “Return”).
Too high humidity and strong
temperature changes.
Check ambient conditions.
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, follow the instructions given in chapter 9.2 “Return”.
9. Dismounting, return and disposal
WARNING!
Residual media in dismounted instruments can result in a risk to persons, the
environment and equipment.
Sufficient precautionary measures must be taken.
9.1 Disassembly
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 thermometer once the system has been depressurised!
8. Faults / 9. Dismounting, return and disposal