Start-Up; A) General Information; B) Connecting The Power Cable; C) Setting The Desired Output Voltage - Conrad Electronic VOLTCRAFT SPS12/120 Operating Instructions Manual

8. Start-up

a) General information

The switching power supply is not a charger. To charge batteries, use suitable chargers with charging cut-off.

b) Connecting the power cable

1. Connect the power cable with earthing contact provided to the power supply jack (5) on the power supply. Make
sure it is plugged in securely.
2. Connect the power cable to a mains socket with earthing contact.

c) Setting the desired output voltage

1. Make sure that there are no consumers connected to the mains power supply.
2. Switch on the power supply at the power switch (1). The power indicator (2) should light up.
3. Check the output voltage with a voltmeter. If the preset voltage is not the desired voltage, it can be reset in the
range of 12.6 V to 14.8 V.
4. Gently remove the plastic cover (4) with a flat-tip screwdriver.
5. With a suitable screwdriver, set the desired output voltage and check the voltage with a voltmeter.
6. Carefully replace the cover.

d) Connecting a consumer

1. Make sure the consumer is switched off.
2. Check that the output voltage is correct.
3. Connect the positive pole (+) of the consumer to the red terminal "+" (8) and the negative pole (-) of the consumer
to the black terminal "-" (7).
4. 4 mm standard connectors could be used for this purpose but we strongly recommend using terminal screws for
currents over 20 A (the jack heads can be screwed on).
Make sure that the consumers are switched off when being connected to the switching power supply.
Sparks may be generated when a consumer which is switched on is connected to the jacks. This may
damage the screw terminals as well as the connected cables.
5. Always connect the "SENSE" measuring cables, as well. See next chapter.
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