How to adjust the automatic door sensor

In daily use, many users will encounter sensor adjustment problems, and it is not uncommon to report for repair because the sensor is not adjusted properly. Then how to adjust the range of the automatic door sensor to make the automatic door operate according to the user´s requirements.

The following three methods can help you adjust the sensor sensing range:

1： The sensitivity knob is adjusted, and the sensitivity is determined by adjusting the digital analog conversion threshold of the mcu.

2： The working area of the inductor can be adjusted by adjusting the pitch and horizontal angle of the microwave module.

3： Amplification circuit gain adjustment: the position of this knob is around the amplification circuit element (the distance between the sensor positions of different manufacturers and the amplification circuit element is different). Generally, this knob should not be adjusted. It is used by the manufacturer to correct the discreteness of the sensitivity output of the microwave module.

Conclusion: The adjustment of sensitivity and microwave antenna elevation is a simple and intuitive method. At the same time, it should be done after the power is cut off when adjusting the antenna angle. Some automatic door sensors are damaged because they touch the electronic circuit board when adjusting the antenna elevation, causing a short circuit, thereby burning the electronic components. Compared with the sensitivity adjustment knob, the gain adjustment knob is not as easy to operate as the sensitivity knob.