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9. FUNCTIONAL PROBLEMS
The lab mains unit does not work, the displays are not lit:
• Check the on/off switch (switch position "I" = on).
• C heck that the mains cable is firmly connected to the lab mains unit and whether it is plugged into a proper mains
socket with protective contact (wall outlet).
• Check the functionality of the mains socket (e.g. fuse, circuit breaker, fault interrupter protection switch).
The connected consumers do not work:
• Check polarity at the DC output sockets (4, 8).
• Check that the current limitation is activated; if required, set a higher value for current limitation (or set the maxi-
mum value).
• Observe that the lab mains unit has three different voltage/current ranges that can be selected via the three but-
tons "16V/5A" (3), "27V/3A" (7) or "36V/2.2A" (6); see chapter 7. b).
When the consumer needs, for instance, an operating voltage of 30 V/DC, select the corresponding range with the
button "36V/2.2A". Only an output current up to 2.2 A is available here, however.
• Reduce the load of the lab mains unit.
• Check the technical data of the consumers (operating voltage, current consumption, voltage type).
10. DISPOSAL
This symbol must appear on any electrical and electronic equipment placed on the EU market. This symbol
indicates that this device should not be disposed of as unsorted municipal waste at the end of its service
life.
Owners of WEEE (Waste from Electrical and Electronic Equipment) shall dispose of it separately from
unsorted municipal waste. Spent batteries and accumulators, which are not enclosed by the WEEE, as well
as lamps that can be removed from the WEEE in a non-destructive manner, must be removed by end users
from the WEEE in a non-destructive manner before it is handed over to a collection point.
Distributors of electrical and electronic equipment are legally obliged to provide free take-back of waste. Conrad
provides the following return options free of charge (more details on our website):
• i n our Conrad offices
• at the Conrad collection points
• at the collection points of public waste management authorities or the collection points set up by manufacturers or
distributors within the meaning of the ElektroG
End users are responsible for deleting personal data from the WEEE to be disposed of.
It should be noted that different obligations about the return or recycling of WEEE may apply in countries outside of
Germany.
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