CONTROLS AND INDICATORS
Power Switch:
Turns the power supply on–off, when it is on the front display lights up.
AC Input Socket with Fuse
Concealed Fuse box (ply open the cover to get to the fuse)
Output Voltage Tuning knob. (Push the knob to toggle the coarse and fine tuning)
Output Current Tuning knob. (Push the knob to toggle the coarse and fine tuning)
Output On/Off push button
Output Terminal Positive (+) Red color.
GND Terminal (
) Green color
Chassis ground terminal, normally this is to be short to (+) or (-) as required by user.
Output Terminal Negative (-) Black color.
LCD Display panel showing:
4 digit voltage, current meter, (CV) constant voltage mode, (CC) constant current mode,
Output Terminal on/off state
OPERATIONS
Ground Connection
Depending on the application, the power supply output terminals can be grounded in any one of the following grounding
conditions :
Negative ground – black (-) negative terminal is shorted with green GND terminal.
Positive ground – red (+) positive terminal is shorted with green GND terminal.
Floating ground – green terminal is not shorted with any of the output terminals.
Remarks :
When operating this power supply as a floating ground, high impedance leakage can exist between the power supply circuitry
and the chassis ground.
Basic Mode of Operation
This power supply is designed to operate as a constant voltage source or as a constant current source. Automatic crossover to
either mode of operation occurs when the load condition changes as following:
