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6. OPERATION
6-1. As a Constant-Voltage Power Supply
1) Check the rated input voltage, then connect the power cord.
2) Turn the voltage adjuster knob (VOLTAGE) fully counter-clockwise.
3) Turn on the power switch. The POWER (red) indicator light and the device is operated.
Make sure the OUTPUT switch is off (the indicator is out).
4) Set a desired voltage with the voltage adjuster knob (VOLTAGE). No voltage develops at
the output terminals still.
5) Set a current limit.
Keeping the V/I CHECK switch depressed, set a desired limit of output current with the
current adjuster knob (CURRENT).
6) Turn on output
Turn on the OUTPUT switch, and the preset voltage is output at the output terminals
with the output indicator lit.
Note 1 : If excessive current flows as when the load is shorted, the device performs
constant-current operation at the preset limit of output current and the output
voltage falls.
Note 2 : If the overvoltage protection level is set lower than the preset level of output
voltage, the power switch will be turned off by overvoltage protection.
See how to set overvoltage protection.
6-2. As a Constant-Current Power Supply
1) Check the rated input voltage, then connect the power cord.
2) Turn the current adjuster knob (CURRENT) fully counter-clockwise.
3) Turn on the power switch. The POWER (red) indicator lights and the device is in
constant-current mode. Make sure that the OUTPUT switch is off (the indicator is out)
4) Set a desired current.
Keeping the V/I CHECK switch depressed, set a desired constant current with the
current adjuster knob (CURRENT).
5) Set a voltage limit.
Set a desired voltage limit with the voltage adjuster knob (VOLTAGE). It is the
overvoltage protection level.
