Maintenance, Cleaning And Calibration - WIKA TR33 Manual De Instrucciones

9. Faults / 10. Maintenance, cleaning, calibration
Faults
Temporary
or sporadic
interruptions of the
measured value
signal
Corrosion
Signal interference

10. Maintenance, cleaning and calibration

For contact details see chapter 1 "General information" or the
back page of the operating instructions.
10.1 Maintenance
The resistance thermometers described here require absolutely no
maintenance and contain no components which could be repaired or
replaced.
WIKA operating instructions model TR33
Causes
Cable break in connection
cable or loose contact
caused by mechanical
overload
Composition of the
medium not as expected
or modified
Stray currents caused
by electric fields or earth
circuits
Earth circuits
Measures
Replace the probe or use
thicker conductor cross-
section
Analyse the medium
Use of shielded connection
leads, increase in the
distance to motors and power
lines
Elimination of potentials,
use of galvanically isolated
barriers or transmitters
EN
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