WIKA TSD-30 - Manual (Page 23)

23 WIKA operating instructions temperature switch model TSD-30
GB
11613025.02 12/2011 GB/D/F/E
8. Faults
Error code Description
ATT1 On changing the switch point, the system automatically reduces the reset point
ATT3 Password entered for menu access is incorrect
ERR Internal error
OL Measuring range exceeded > approx. 5 % (display blinks)
UL Below measuring range < approx. 5 % (display blinks)
Acknowledgement of an error display by pressing the "Enter" key.
Problem Possible cause Measure
No output signal Cable break Check the through drilling
No output signal / line break Mechanical load too high Replace sensor with a suitable design
No output signal No/wrong power supply Rectify the power supply
No/wrong output signal Wiring error Observe the pin assignment
Wrong output signal Process temperature out of range;
Sensor drift caused by overtemperature
Sensor burnout/short circuit
Check temperature range
Send the instrument to the manu-
facturer
Wrong output signal Sensor drift caused by chemical attack Check media compatibility
Wrong output signal and too long
response time
Wrong mounting geometry, for example
mounting depth too deep or heat dissi-
pation too high
Deposit on the sensor
Move the temperature-sensitive area
of the sensor into the medium
Remove deposit
Signal span too small Power supply too high/low Rectify the power supply
Signal span drops Humidity has entered Assemble the cable correctly
If complaint is unjustified, we will charge you the complaint processing fees.