2
0
1
7
-0
6
66
Maintenance and Repair
10
Maintenance and Repair
10.1
Maintenance Work
The sensor itself is maintenance-free. For this reason, it is not necessary to carry out regular
adjustments or maintenance work on the sensor itself.
However, check that the sensor and connector are tight within the scope of routine
maintenance intervals. You may also want to check that the connection cable is installed and
intact.
10.2
Cleaning
Cleaning is only necessary in applications in which the transducer surface is exposed to dirt or
build-up.
In general, the following applies as far as cleaning is concerned:
■
Only with water without chemicals
■
Without pressure/high pressure
■
Only by using a soft cloth
■
No abrasive cleaning, scratching, or scrubbing
10.3
Resetting to the Factory Default
You can reset the sensor to the factory default setting in the following ways:
■
Using the programming button
■
Via the DTM in the
Service
menu
■
Via IO-Link
Resetting with the programming button
1. Disconnect the sensor from the power supply.
2. Press and hold the T programming button.
3. Switch on the supply voltage. The yellow and red LEDs flash simultaneously for 5 seconds.
Then the yellow and green LEDs flash simultaneously for a further 5 seconds.
4. Release the T programming button while the yellow and green LEDs flash simultaneously.
The sensor will now function with the original factory settings. If the T programming
button continues to be pressed down beyond this flash sequence, the sensor changes back
to normal operation (green LED lights up). In this case, all settings remain unchanged in the
sensor.
The following graphic illustrates the sequence for the reset to factory settings:
Figure 10.1
T
T
Power ON
. . .
. . .
5s
T
Normal operation
Normal operation
Exit
without
saving
Reset
hold button T
in total >10s
LED
red
yellow
LED
green
yellow
LED green
press and hold button T
