Faults - WIKA TW61 Mode D'emploi

8. Faults

8. Faults
Faults
Not possible
EN
to insert the
temperature
sensor into the
thermowell
Escape of process
medium
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".
16
Causes
Foreign bodies in the thermowell
Damaged or contaminated fastening thread
on thermowell or temperature sensor
Damaged fastening thread on thermowell or
temperature sensor
Thermowell or sensor has been bent or
damaged during installation
Where there is an escape of process medium
at the process connection, errors in mounting
or faulty seals can be the cause.
Should process media escape at the interface
between the thermowell and the temperature
sensor or at the temperature sensor itself,
safe operation of the plant can no longer be
guaranteed
WIKA operating instructions thermowell, model TW61
Measures
Remove foreign bodies
Clean the threads
Return the thermowell
(see chapter 9.2 "Return")
Return for repair
Check the seal and also
check the tightening torques
Remove the thermowell
from operation and contact
WIKA