3.0
Operating instructions
3.1
Mains input
The mains input connector is located on the rear of the unit. Before connecting to the mains supply the user
should verfy that the unit is set to the correct voltage for the country of use. The mains voltage is set by the
external mains voltage selector switch located on the rear of the unit.
3.2
Mains input fuse
The mains fuse is located on the rear of the unit. The correct fuse for each supply voltage is as follows :
Model
110Vac
220Vac
HV10001
T8A 250V
T4A 250V
HV20001
T6A 250V
T3A 250V
HV30001
T8A 250V
T4A 250V
3.3
Power on/off
The mains power to the unit is switched on and off using the POWER on/off pushbutton.
3.4
Voltage and current display
HV10001, HV20001 and HV30001 feature independent displays for both output voltage and output current.
3.5
Output voltage and output current
The output voltage is adjusted to the desired value using both the Coarse and Fine Voltage controls. The out-
put current level is adjusted to the desired value usng both the Coarse and Fine Current controls. If the output
current exceeds the set current value the power supply will limit the output current to the set value.
3.6
Caution
The HV series power supplies include short circuit protection, if a short circuit occurs the unit should be
switched off. The level of the current limit can be set by connecting a resistor to give an output current of 1A
or less.
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