User manual

67
c) Overload protection
• In case of overload at the DC output, the power limitation is usually
switched on. If this is not the case, the second protective function
becomes active.
• Switch off the power unit at once when this warning message
appears and check the connection data of the consumer. Remove
the consumer from the power unit’s DC output.
• Switch on the power unit again and check its function. If the error
message remains on, please contact our customer service.
15. MAINTENANCE AND CLEANING
• 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.
a) Exchanging the fuse
If it is no longer possible to switch on the laboratory power unit, the rear mains fuse (12) 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 (12) 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.
Fuses are replacement parts and not covered by the warranty/guarantee.