1、 Preparation work before adjustment

Before adjusting the proportional valve amplification plate, it is necessary to ensure that the equipment and tools are complete to avoid operational interruptions. Firstly, check if the power is turned off to prevent the risk of electric shock. Secondly, prepare a multimeter, screwdriver, and other tools to ensure a smooth adjustment process. Finally, read the equipment manual to understand the basic parameters and functions of the amplifier board.

2、 Specific adjustment steps

Zero point adjustment: Use a multimeter to measure the output signal of the amplifier board, ensuring that the output is zero when there is no input. If there is any deviation, calibrate it using the zero adjustment knob.

Gain adjustment: Input a standard signal and observe whether the output signal matches. If there is no match, adjust the gain knob until the output signal reaches the desired value.

Feedback check: Connect the feedback loop, test the response speed and stability of the amplifier board, and ensure that the adjusted performance meets the requirements.

3、 Precautions

During the adjustment process, it is necessary to avoid frequent power on/off to prevent damage to the amplifier board. At the same time, the knob should be lightly turned during operation to prevent excessive adjustment from causing equipment failure. After the adjustment is completed, it is recommended to conduct multiple tests to ensure that the enlarged board can work stably under different working conditions.


The above:Common faults, phenomena, causes and brief solutions of screw pump operation