Faults - WIKA TR36 Betriebsanleitung

9. Faults

9. Faults
EN
Faults
No signal/cable break
Erroneous measured
values
Erroneous measured
values (too low)
Erroneous measured
values and response
times too long
Temporary or sporadic
interruptions of the
measured value signal
22
CAUTION!
Physical injuries and damage to property and the
environment
If faults cannot be eliminated by means of the listed
measures, the instrument must be taken out of operation
immediately.
▶
Ensure that temperature or signal is no longer present
and protect against accidental commissioning.
▶
Contact the manufacturer.
▶
If a return is needed, please follow the instructions given
in chapter 11.2 "Return".
For contact details see chapter 1 "General information" or the
back page of the operating instructions.
Causes
Mechanical load too high or
overtemperature
Sensor drift caused by
overtemperature
Sensor drift caused by
chemical attack
Entry of moisture into cable
Wrong mounting geometry,
e.g. insertion depth too
small or heat dissipation
too high
Deposits on the protection
tube
Cable break in connection
cable or loose contact
caused by mechanical
overload
Measures
Replace the probe with a
suitable version
Replace the probe with a
suitable version
Analyse the medium
Use the appropriate IP
protection
The temperature-sensitive
area of the sensor must
be inside the medium, and
surface measurements
must be ungrounded
Remove deposits
Replace the probe or use
thicker conductor cross-
section
WIKA operating instructions model TR36