7
4.1
4.1
4.1
4.1
Before operation, should check L/R (local/remote control) selector whether on its right
position or mot, otherwise it doesn’t operate, generally it is at ‘L’ position.
4.2
4.2
4.2
4.2
Turn on the power supply, press the “V” button by adjusting the voltage setting
potentiometer to a required voltage value and then press the “OUTPUT” button. While the
voltage is available at the binding post, at the moment, the CV lamp (green) lights, the
constant-voltage mode starts operating. If the CC lamp (red) lights, the voltage value drops,
in this case the instrument is in constant-current Mode, should set the CC setting
potentiometer to the extreme position clockwise.
4.3
4.3
4.3
4.3
Preset a constant–current point and set the output current of the unit. By above,
mentioned method, after the constant-voltage point is set, press the “A” button and output
terminal is shorted, turn on the “OUTPUT” switch, then the CC lamp lights, but CV lamp
goes off. After the current setting potentiometer is set to the required value.
To keep the voltage position, turn off the “OUTPUT” switch and remove the short bar,
connect the 1oad, press the “ OUTPUT” switch, the instrument provides the required current
and voltage for the load.
4.
4.
4.
4.
4
4
4
4
When turn off the power supply, first should turn off the “OUTPUT” switch, then turn off
the “POWER” switch.
4.5
4.5
4.5
4.5
Remote
–
Control CV Output
The output voltage can be controlled by an external voltage of 0
-
10V.
As the externa1 contro1 signal, its common termina1 is a “+” n output terminal.
4.5.1
4.5.1
4.5.1
4.5.1
Turn on the R/L (remote/loca1) selector switch to R position.
Turn on the V/C (voltage/current) selector switch to V position.
4.5.2
4.5.2
4.5.2
4.5.2
Turn on the “POWER” switch and the “OUTPUT” switch, the external control voltage
is applied through the jack on the rear panel of the unit. Adjust “VOLTAGE” switch of the
potentiometer to the extreme position clockwise, adjust the external control voltage so that
the output voltage becomes the desired voltage.
The relationships between the output voltage (Eo) and the external control voltage
(El) is expressed as follows:
Eo=1/10 E
max
.E
1
.a (V)
Where Em: Maximum rated voltage (V)
El: External control voltage signal (V)
0V
≤
E
1
≤
<l0V
V
C
Voltage
Current
Figure 3
