Extech Instruments 382270 - Operation; Independent Connections; Constant Voltage (CV) Mode; Constant Current (CC) Mode

Operation
Independent Connections (Channels 1 and 2, adjustable outputs)
Set the tracking switches (19) and (22) to the spring out position (INDEP). Set the Output
On/Off switch (27) to the On position.
Constant Voltage (CV) Mode
1. Rotate the CC knob (4) for CH 2 or (13) for CH 1 to maximum and then turn on the
power supply.
2. Adjust CV knob (6) or (11) for the desired output.
3. The color of the CV/CC status LED (5) or (12) will turn green.
4. Current Limiting Note: For CV outputs in general, the CC adjustment should be set
to maximum, but, for this unit, the current limiting protection point can also be set
arbitrarily. To do so:
a) Turn on power
b) Rotate CC adjustment counter-clockwise to minimum
c) Short the positive and negative terminals
d) Rotate the CC adjustment clockwise to the desired current-limiting
protection point.
Constant Current (CC) Mode
1. Turn on the power supply.
2. Rotate the CV knob (6) or (11) to maximum.
3. Rotate the CC adjustment (4) or (13) to minimum
4. Connect the required load.
5. Rotate CC adjust knob clockwise to reach the desired current value.
6. The color of the CV/CC status LED (5) or (12) will turn red.