Function Introduction
1.Voltage/Current Setting and Output
a.Press VOLTAGE knob, the cursor will flash on the CH1 voltage position,
then continuously press the knob to move the cursor and rotate it to adjust
the voltage value.
b.Press CURRENT knob, the cursor will flash on the CH1 current position,
then continuously press the knob to move the cursor and rotate it to adjust
the current value.
c.Press the OUTPUT button after setting the voltage and current values
needed, the ON symbol and the backlight of OUTPUT button are lighten,
the output of CH1 is enabled.
2. Constant Voltage/Constant Current
In constant voltage mode, the output current is less than the set value, the
channel indicator will be green (CV), and the voltage is the set value, if the
output current reaches the set value, the device will switch to the constant
current mode.
In constant current mode, the output current is the set value, the channel
indicator will be red (CC), and the voltage is lower than the set value, if the
output current is lower than the set value, the device will switch to the constant
voltage mode.
3.OVP (overvoltage protection), OCP
(overcurrent protection) Setting and Enabling
a.Short press VOLTAGE knob, the cursor will flash on the CH1 voltage position,
continuously press the knob to move the cursor and rotate it to adjust the
voltage threshold value.
Long press VOLTAGE knob, OVP symbol is lighten, the voltage output value
returns to zero, OVP is enable (if output is on). If the output voltage exceeds
the OVP set limit, the output will be shut off, and OVP symbol will be flashing
on LCD screen. Long press VOLTAGE knob again to disable OVP, then OVP
symbol disappear.
b.Short press CURRENT knob, the cursor will flash on the CH1 current position,
continuously press the knob to move the cursor and rotate it to adjust the
current threshold value.
Long press CURRENT knob, OCP symbol is lighten, the current output
value returns to zero, OCP is enable (if output is on). If the output current
exceeds the OCP set limit, the output will be shut off, and OCP symbol will
be flashing on LCD screen. Long press CURRENT knob again to disable
OCP, then OCP symbol disappear.
4. Remote Control DIGITAL I/O Interface
To remotely control the output and shutoff of CH1, you can short-circuit or
disconnect the pin 1 and 2 of the DIGITAL I/O terminal by a short-circuited
wire or an external relay. The specific operations are as follows:
When the pin 1 and 2 of the DIGITAL I/O terminal are short-circuited, the
OUTPUT button is disabled, the power output is forcibly turned on, and the
ON symbol appears on the LCD screen.
When the short circuit is released, the OUTPUT button function is restored,
and the output is turned off, the OFF symbol appears on the LCD screen.
The DIGITAL I/O terminal is shown in the following figure:
5. USB Interface Function
As shown in figure, this interface is not for communication but only for mobile
phone charging, and the output is 5V/2A by default.
USB Charging Interface
6. OTP (over-temperature protection) Overview
Inside the power supply, there is thermistor placed on the heat sink which
has the maximum heat. Once the power supply fails and the temperature of
the heat sink reaches about 100 °C, OTP will be triggered, the output will be
turned off with the OTP symbol flashing and periodical beeps. The OTP
indication stops when any key is pressed.
7. M1-M5 Store/Recall Functions Introduction
a.Press VOLTAGE knob, rotate the knob to adjust voltage as needed;
b.Press CURRENT knob, rotate the knob to adjust current as needed;
c.Long press M1buttton with its backlight flashing to save M1 setting.
d.Short press M1to recall the stored data with its backlight on and the M1
symbol displaying on screen;
e.Similar operation for M1-M5.
8. Buzzer On and Off
Long press (>3s) the BEEP button, the backlight is on and the buzzer is off.
Short press the BEEP button, the buzzer is on;
9. Keypad Lock
Short press the LOCK button, the button backlight is on and the keypads are
locked.
Long press the LOCK button (>3s), the button light is off and the keypads are
unlocked.
10. Remote Interface Control
UDP1306C power supply supports the communication between RS232 interface
and the computer base on SCPI communication instruction, please refer to
the programming manual for detail.
Rs232 Interface Definition
Power Source
11. Accessories
Charging line -------------------------------- 1
USB communication cable --------------- 1
Power output cable ------------------------ 1
RS232 communication cable ------------ 1 (optional)
