Operation Precautions for Linear DC Power Supplies
1) Voltage setting: Turn on the DC power switch, adjust the voltage knob to adjust the voltage reading to the required working voltage. When it is necessary to reduce the voltage, the potentiometer should be slowly turned to adjust the speed of the voltmeter to match the speed of the manual knob.
2) Constant current setting: Connect the load and first adjust the current adjustment potentiometer to the minimum. Turn on the DC power supply and adjust the current to the desired value.
3) Voltage protection value setting: First, turn the voltage protection knob to the maximum, adjust the output voltage to the desired protection value, and then slowly adjust the DC power supply voltage protection potentiometer counterclockwise until overvoltage protection occurs in the DC power supply. The voltage protection value should generally be about 10% higher than the operating voltage, so adjust the output voltage to about 10% higher than the required voltage, and then slowly adjust the voltage protection potentiometer counterclockwise until overvoltage protection occurs in the DC power supply.
4) Current alarm value setting: First, turn the current alarm knob to the maximum, adjust the output current to the desired alarm value, and then slowly adjust the current alarm potentiometer counterclockwise until the power supply emits an audible and visual alarm.
5) At the moment of turning on or off the load of this DC power supply, the voltmeter reading will experience instantaneous jumping, which is a normal phenomenon.
6) After shutting down, if you need to turn on the DC power again, please wait for a moment and do not frequently turn it on or off, otherwise the power supply may be damaged.
7) If you find that the power supply is not outputting during use, check the fuse first. If the fuse is burnt out multiple times, it indicates that there may be a fault in the DC power supply. The machine should be stopped and professional maintenance personnel should be hired for repair.
8) In order to protect other components and loads inside the DC power supply from damage, an automatic trip function is set up. If the power supply trips automatically during normal use, it means that there may be a problem with the power supply. In this case, the power supply should be turned off first, the voltage protection knob should be adjusted to the maximum (the voltage adjustment knob should not be turned), and then turned on again. If it still trips, it means that the DC power supply needs to be repaired.
