User manual
• Unplug the product from the power source.
• Apart from an occasional cleaning or exchanging the fuse, this laboratory power unit is maintenance free.
• Use a clean, lint-free, antistatic and dry cloth to clean the device. Do not use any abrasive or chemical agents or
detergents containing solvents.
If it is no longer possible to switch on the laboratory power unit, the rear mains fuse (11) is probably defective.
Proceed as follows to replace the mains fuse:
1. Switch off the power unit and remove all the connection cables
and the mains plug from the device.
2. Lever the rear fuse holder (11) with a suitable screwdriver from
the bracket.
3. Replace the defective fuse with a new ne-wire fuse of the same
type and rated current. The fuse value is listed in the chapter on
“Technical data”.
4. Press the fuse into the fuse holder.