2
0
2
2
-0
2
58
Maintenance and Repair
7
Maintenance and Repair
7.1
Servicing
The device is maintenance-free. To get the best possible performance out of your device, keep
the optical unit on the device clean, and clean it when necessary.
Observe the following instructions when cleaning:
•
Do not touch the optical unit with your fingers.
•
Do not immerse the device in water. Do not spray the device with water or other liquids.
•
Do not use abrasive agents to clean the surface of the device.
•
Use a cotton or paper cloth moistened (not soaked) with water or isopropyl alcohol.
•
Remove any residual alcohol using a cotton or paper cloth moistened (not soaked) with
distilled water.
•
Wipe the device surfaces dry using a lint-free cloth.
7.2
Repair
The device must not be repaired, changed, or manipulated. In case of failure, always replace
the device with an original device.
Danger!
Danger to life due to electrical current!
Contact with live parts causes immediate danger to life.
•
Allow only qualified electricians to carry out work on the electrical installation.
•
Switch off the power supply before carrying out servicing, cleaning, and repairs, and pre-
vent the supply from being switched on again.
•
Keep the live parts free from moisture.