4. Precautions for using the power supply
Caution ! Before connecting the mains plugs of the power supply to the main outlet
and switching on the equipment, be sure that the correct main voltage is available
and polarity has been correctly observed. Incorrect polarity can damage the power
supply and/or any connected equipment. Replace defective fuse only by an
equivalent type. Before inserting the mains plug in the power outlet ensure that the
line voltage corresponds with the selected line voltage of the power supplies.
Caution! Never use the instrument without fully closed housing.
4.1. Adjustment of output current (DC)
Caution! Before connecting this power supply to the load ensure that
the specified maximum output current is not exceeded.
1. Disconnect the leads from the plus (+) and minus (-) terminals or the AC
terminals of the power supply.
2. Adjust the desired output voltage with the voltage control.
3. Turn the current control counter-clockwise.
4. Short-circuit the plus and minus output terminals with a suitable short-circuit
bridge or cable (the bridge or cable must be adequately dimensioned for the
desired output current).
Caution! Only possible in DC-voltage range. Short-circuit at AC-voltage
range activates input-fuse.
5. Turn the current control clockwise until the desired current is indicated.
6. Remove the short-circuit bridge or cable from the plus and minus terminals.
7. The power supply is ready for operation now.
4.2. Operating method
1. To adjust the desired output voltage (0…30V), first should rotate clockwise the
adjustment knob (12) to maximum, then turn on power switch (1).
2. Adjust adjustment knob (14) till output voltage reach required voltage value.
3. The LED for constant current (CC) expires and the LED for constant voltage
(CV) lights up.
-11-
3. Bedienelemente
1. Ein/Aus-Schalter
2. Netzsicherung
(4A)
3. Gleichspannungsausgang
(-)
4. Eingangsbuchse für Massepotenzial
5. Gleichspannungsausgang
(+)
6. Wechselspannungsausgang
7. Eingangsbuchse für Massepotenzial
8. Wechselspannungsausgang
9. Konstantstrom-Anzeige des DC-Ausgangs (CC)
10. Konstantspannungsanzeige des DC-Ausgangs (CV)
11. Überstromanzeige des AC-Ausgangs (OV)
12. Stromregler für DC-Ausgang (Einsteller für Strombegrenzung DC)
13. LED-Stromanzeige für DC-Ausgang
14. Spannungsregler für DC-Ausgang
15. LED-Spannungsanzeige für DC-Ausgang
16. Stromregler für AC-Ausgang (Einsteller für Strombegrenzung AC)
17. LED-Stromanzeige für AC-Ausgang
18. Spannungsregler für AC-Ausgang
19. LED-Spannungsanzeige für AC-Ausgang
-4-
12
3 4 5
6
7 8
1
2
19
13
10
15 16
17 18
11
9
14
