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4. Features:
Voltage and Current dual LED display
Voltage and Current Coarse/Fine adjustment
Protection mode: limited current output
Parallel or serial connection detection to automatically switch outputs
Stylish plexi-glass display panel
Memory: 3 programmable memories
5. Description
The QJ3003GIII/QJ3005GIII is a high-precision, variable DC power supply. It can operate on either Constant
Voltage (C.V.) or Constant Current (C.C.) mode. While on C.C. mode, the voltage is adjustable between 0 and
30 volts. Whereas the current is adjustable between 0 and 5 amps when on C.V. mode. Dual channels output for
convenient serial or parallel setup, the 3
1
Power Switch: On/Off Switch
2
Switch: Output On/Off
3
CH1 Channel 1
4
CH2 Channel 2
5
Data Storage
6
Parallel Connection Button
7
Serial Connection Button
8
Key Lock
Voltage Adjustment Knob
9
Current Adjustment Knob
10
Voltage Coarse/Fine Adjustment Indictor
11
Current Coarse/Fine Adjustment Indictor
12
6. Operation
Turn on or off power source
1.
Connect the included power cord to the backside 【 15 】 of the power supply, plug the other end into a
properly grounded power outlet.
Always connect the equipment to a grounded power outlet.
2.
Press the power button 【 1 】 to turn on the power supply, at this point there's no output voltage or current at the
output terminals.
3.
Press the power button 【1】to turn off the power supply,
QJ3003GIII QJ3005GIII
rd
output is fixed output at 5 volts.
13
14
15
16
17
18
19
20
21
22
23
24
4
Channel 2 Voltage Display
Channel 1 Status Indicator
Channel 1 Voltage Display
Channel 2 Current Display
Channel 2 Status Indicator
Channel 1 Current Display
Channel 2 Output
Ground
Channel 1 Output
Fixed Output 5V @ 3A
Ventilation Fan
Power cord connector and fuse box
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