13
UK
7.2 Service functions
Fnr
Fault number
Display of a fault number for detailed fault analysis
rES
Reset to factory settings
Click on the respective reset button�
HI
LO
Min-Max memory for system temperature
• HI: displays the highest measured temperature.
•
LO: displays the lowest measured temperature�
Erase the memory: Click on the respective reset button�
It is recommended to erase the memory as soon as the unit starts working under
normal operating conditions�
8 Operation
After power on, the unit is in the Run mode (= normal operating mode). It carries
out its measurement and evaluation functions and provides output signals accord-
ing to the set parameters�
In case of faults / anomalies:
►
Connect the unit to a PC and activate [Fnr]�
8.1 Fault indication
Fnr Type of fault
Remedy
0
No fault, no anomaly occurred�
-/-
10 Fault during power-on self test�
►
Switch the supply voltage/switch off
and on again�
►
Replace the unit�
20 Internal malfunction in the sensor electronics�
►
Replace the unit�
21 Partial malfunction in the sensor elec-
tronics, measurement with one channel
still possible�
►
Replace the unit�
(Sensor backup is possible).*
30 Short circuit in switching output Out1
(diagnostic output).
►
Check wiring and load on Out1;
temperature measurement without
diagnosis still possible�
40 Fault on the analogue output�
►
Check wiring�
►
Replace the unit�
41 Load for analogue output of too high
impedance�
►
Check wiring and load on Out2;
measured temperature value avail-
able via IO-Link�
*[drEd] = [On] or [Ondr]�
