Operation and Protective Measures
1) Switch the POWER to the off state and connect the power cord attached to
the power supply. Connect the L terminal of the power cord plug to the live wire
of the power socket. The ground wire of the power cord should be ensured a
good connection to the ground.
2) The PS303/PS305 is a floating type power supply. If grounding is required in
use, connect the 0~30V output
terminals “+”pole or “−”pole on the front panel to
the GND with a wire.
3) To ensure good ventilation, keep a gap of 10cm between the
upside/downside/left side/right side and other objects. Do not expose this device
to dusty environment, corrosive gases and other harmful substances.
4) Constant voltage output: Switch the POWER switch to the on state. The CV
indicator will be on and the power supply will be under constant voltage
operation. Adjust VOLTAGE knobs (C0ARSE and FINE) to obtain desired
output voltage.
5) Constant current output: When no load is present, adjust the output voltage
within 2~ 5V and counterclockwise turn the CURRENT knobs (COARSE and
FINE) to "0” position. Use a wire size not less than 0.5mm2 to short-circuit the
0~30V output termin
als “+” pole and “−” pole. At this time, the CC indicator will
be on. Adjust the CURRENT knobs to reach the desirable current and
disconnect the short-circuited wire.
6) In order to match the specifications, the power supply should be used after
warming up for 15 minutes.
Packing List
1) DC power supply
1pc
2) Power cord 1pc
3) User manual 1pc
4) Fuse 1pc