WIKA 70-8xx - Manual (Page 14)

GB
14
11472988.02 04/2013 GB/D/F/E
WIKA operating instructions expansion thermometer, model 70
10. Faults
Faults Causes Measures
The pointer drops below the
start of the scale range.
Damaged capillary Carefully dismount the instrument,
pack it (tightly sealed) and return it
to the manufacturer for repair.
Instrument switches at the
wrong temperature
Switch point is set incorrectly. Check the switch point
Instrument does not switch Defect in switch setting/ micro
switch
Return the instrument to the
manufacturer for repair
CAUTION!
If faults cannot be eliminated by means of the measures listed above, take the
instrument out of service immediately, ensure that no pressure/temperature
or signal are still 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 at the dismounted instrument can result in a risk to persons,
the environment and the equipment.
Take sufficient precautionary measures.
11.1 Dismounting
WARNING!
Risk of burns!
Let the instrument cool down sufficiently before dismounting!
During dismounting there is a risk of dangerously hot pressure media
escaping.
Only disconnect the expansion thermometer once the system has been depressurised!
10. Faults / 11. Dismounting, return and disposal