1. According to the required voltage, first adjust the "coarse adjustment" knob, and then gradually adjust the "fine adjustment" knob, to achieve correct coordination. Example of linear regulated power supply: when 12V voltage is required to be output, the "coarse adjustment" knob shall be set at 15V, and then the "fine adjustment" knob shall be adjusted to 12V, while the "coarse adjustment" knob shall not be set at 10V. Otherwise, the maximum output voltage cannot reach 12V.

2. Adjust to the required voltage before connecting to the load.

3, in the process of using, if you need to change the "coarse adjustment" file, the load should be disconnected first, then the output voltage will be adjusted to the required value and then connected to the load.

4. In the use process, when the protection is caused by load short circuit or overload, first disconnect the load, then press the "reset" button, and also turn on the power again, the voltage can resume normal operation, and then connect the load after troubleshooting.

5. When each power supply with different rated current is used in series, the output current is the rated value of the least one of them.

6. Each power supply has a meter, which indicates the output current or output voltage of this circuit in different A / V states. It is usually placed in the voltage indication state.

7. Each circuit has two output terminals, red terminal is "+", black terminal is "-", and the black terminal in the middle of the panel is connected with the "Earth" symbol, which means that the terminal is connected to the enclosure. There is no electrical connection with each output circuit, and it is only used as a safety wire. It is often taken for granted that the "Earth" symbol represents grounding, and "+" - "represents positive and negative power outputs to supply power to the Dual Power Op Amp.

8. Two circuits of voltage can be used in series. Xi'an intermediate frequency power supply indicates that parallel connection is not allowed. The power supply is a kind of supply quantity instrument, so it is not allowed to short-circuit the output terminal for a long time.