24
Troubleshooting
By purchasing the laboratory power unit, you have acquired a product that is reliable and operational-
ly safe.
Nevertheless, problems or errors may occur.
For this reason we want to describe how to troubleshoot potential malfunctions:
Always observe the safety instructions!
Error
Possible cause
The power unit cannot
Are the control lamps on the power unit lit (2/4/6/7) ?
be turned on.
Check the mains voltage (if required, check the mains fuse
in the device or the line circuit breaker).
Connected consumer devices
Correct voltage set?
do not function.
Is the polarity correct?
Check the technical data of the consumers.
Check the secondary fuse (12) at the AC output
The “CC” (3) indicator is lit.
DC constant current operation
The preset current was exceeded.
Check the power consumption of your consumer and
if required, increase the current limitation at the power unit.
The “CV” (3) indicator is lit
Constant current operation
The power unit works normally. The set constant voltage
is provided on the output.
Regularly check the technical safety of the device e.g. for damaged housing etc.
Fuses are replacement parts and not covered by the warranty/guarantee.
Repairs other than those described above should only be carried out by an authori-
sed specialist. If you have any questions concerning the handling of the device,
please do no hesitate to contact our Technical Support:
Voltcraft®, 92242 Hirschau, Lindenweg 15, Tel.-No. 0180 / 586,582 7.
