III. Panel Control Description
O
.
V
.
P
C
.
L
.
P
ON
W
A
V
CC
CV
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1. Model
2. Output voltage
3. Output current
4. Output power
5. Current coarse adjusting knob
6. Current fine adjusting knob
7. The output negative terminal
8. Connection wire
9. The output positive terminal
10. Power switch
11.Voltage coarse adjusting knob
12. Voltage fine adjusting knob
13. Constant current indicator
14.Constant voltage indicator
1. Connecting to the power source, set the machine input voltage to the same
with use voltage (AC110V/220V).
2. Turn on the power switch, indicator C.V light (current coarse and fine
adjustment knob does not 0 ), current and voltage display shows the “000” , a
voltage display the output voltage.
3. Adjust the voltage coarse/fine knob to the request voltage ( current coarse and
fine adjustment knob not 0), output voltage range: 0-30V DC.
4. When connecting to an external load to the “+”, “-” output terminals, output “+”
or “-” posts must have a reliable connection with GND terminal, it can reduce
the output ripple of power.
IV. Usage Instruction
Operation
1. Firstly, adjust voltage coarse and fine knob to the voltage value between 2 to 5V
(current coarse and fine adjustment knob is not 0).
2. And then adjust current coarse and fine knob to 0 (Anti-clockwise to the end).
3. Connect output terminal
“
+
”
and
“
-
”
with wire.
4. Then adjust the current coarse and fine knob to set the working voltage and
then you can continue your operation.
Current Setting
This machine is the type that the voltage and current can convert automatically. It
means that the regulator voltage and current keeps converting according to the
load change. The switching point between the regulation and the steady current
state becomes the transition point.
For example:
When the machine is in stable state, if the output voltage is
constant, the output current will change according to the load and there is no any
change for output voltage. When the load increase(resistance decrease) , voltage
is down. The conversion of regulator voltage and current is shown from panel LED
indicator, CV indicator for regulator voltage and CC indicator for regulator current.
Voltage/Current Characteristics
3
4
