15. Maintenance and Cleaning
Periodically verify the technical safety of the device, e.g. check for damage to the mains cable or the
casing.
If you have reason to believe that the device can no longer be operated safely, disconnect it immediately
and make sure it is not operated unintentionally. Unplug the mains adapter from the mains socket!
It can be assumed that safe operation is no longer possible if:
• there is visible damage to the device or to the mains cable
• the device no longer works
• the device has been stored under unfavourable conditions for an extended period of time
• if it has been subjected to heavy stress during transport
Always observe the following safety information before cleaning or servicing the device:
Live components may be exposed if covers are opened or components are removed.
The device must be disconnected from all power sources before any servicing or repair work is
carried out.
Capacitors inside the device may still carry voltage even though they have been disconnected
from all power sources.
Only qualified experts familiar with the hazards involved and the relevant regulations must per-
form repairs.
Cleaning
Clean the exterior of the device with a soft, dry cloth or brush only. Never use any aggressive cleansing
agents or chemical solutions since these may damage the casing or impair its function.
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