1. Adjust the " coarse " knob first according to the required voltage, then gradually adjust the " fine " knob to ensure proper cooperation. For example, when the power supply needs to output 12V, set the " coarse " knob to the 15V position, then adjust the " fine " knob to 12V. The " coarse " knob should not be set to the 10V position. Otherwise, the output voltage will not reach 12V. 2. After adjusting to the required voltage, connect the load. 3. During the operation of a DC regulated power supply, if a change in the " coarse " adjustment is needed, disconnect the load first, wait until the output voltage is adjusted to the required value, and then reconnect the load. 4. During operation, if maintenance is required due to a short circuit or overload of the load, first disconnect the load, then press the "reset" button. You can also restart the power supply, and the voltage will return to normal operation. Reconnect the load after the fault is resolved. 5. When using power supplies with different rated currents in series, the output current is the rated value of the lower-rated path among them. Aviation ground power 2, 36V aviation power supply 1, 400Hz frequency converter power supply 7, 115/200V power supply 2, 27V DC power supply.
6. Each power line has a meter head, which indicates the output current or voltage of the line under different A/V conditions. Generally, it is placed in the voltage indication state. 7. Each line has two output terminals, red and black, with the red terminal indicating “+”, and the black terminal indicating “-”. The center of the panel has a black terminal with a “ground” symbol, indicating that this terminal is connected to the housing and has no electrical connection with any output line, serving only as a safety wire. Many people mistakenly assume that the “ground” symbol indicates grounding, while “+” and “-” indicate the positive and negative power supply lines for dual power supply op-amps. 8. The two voltage lines can be used in series, but not in parallel. As a power supply instrument, it is not allowed to short-circuit the output terminals for a long time.
