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The power unit generates heat during operation; ensure that it is adequately ventilated. Do not cover
the ventilation apertures of the device!
Never expose the device to any direct sunlight. Avoid heat sources in direct proximity. The device
might overheat.
Do not leave power units and connected consumer devices in operation unattended.
Do not place any containers filled with liquid, e.g. vases or plants, on or next to the power unit. If they
fall over, the device can be destroyed and there is a great risk of fire.
When working with power supplies, wearing metallic or conductive jewellery, such as necklaces, bra-
celets, rings etc., is prohibited.
The power unit is not designed for use on humans or animals.
Never expose the device to mechanical stress. Dropping the device even from a low height may dama-
ge it! Avoid vibrations.
If you have reason to believe that the device can no longer be operated safely, disconnect it immedia-
tely and make sure it is not unintentionally operated. It must be assumed that safe operation is no lon-
ger possible if:
- the device shows visible damage,
- the device no longer works and
- the device was stored under unfavourable conditions for a long period of time or
- after it was exposed to extraordinary stress caused by transport.
You should also heed the additional safety instructions in each chapter of these operating instructions
as well as in the operating instructions of the connected devices.
Functional Description
The DC laboratory power unit is controlled linearly and shows very low residual ripple. All DC outputs
are isolated and feature a protective isolation towards the mains voltage. For the secondary DC
connection, there are two coloured safety sockets on the front and two terminal screw clamps on the
back.
The voltage and current values (V = Volt = unit of electric voltage, A = Ampere = unit of electric current)
are displayed in separate LC displays.
Various protective mechanisms, e.g. overload protection and current limitation, etc. are built in for
secure and reliable operation.
The power unit is cooled by a fan. Therefore, ensure sufficient air circulation.
The output voltage and output current at the power unit are infinitely variable.
The AC variable isolating transformer has galvanically isolated primary and secondary sides. The grid
voltage is uncoupled potential-free through a isolating transformer and then controlled by a variable
transformer. This way, the complete current of 4.5 A is available throughout the adjustment range.
For safety reasons, only 1 device at a time may be connected to the AC output.
