How to solve the influence of electromagnetic interference on ultrasonic level gauge

Equipment such as high-power motors around the ultrasonic level gauge will generate electromagnetic interference and affect the measurement of the ultrasonic level gauge. So how does the ultrasonic level gauge solve electromagnetic interference? There will be many motors, frequency converters and electric welding in the industrial site where the ultrasonic level gauge is used, which will affect the measurement of the ultrasonic level gauge. Electromagnetic interference can exceed the echo signal received by the probe. There is electromagnetic interference on site, which will cause malfunctions: the data of the ultrasonic level gauge beats irregularly, or simply shows no signal. Solution: 1. The ultrasonic level gauge must be grounded reliably. After grounding, some interference on the circuit board will run away through the ground wire. And this grounding is to be grounded separately and cannot be shared with other devices. 2. The power supply cannot be the same power supply as the inverter and the motor, nor can it be directly powered from the power system power supply. 3. The installation site should be far away from the inverter, variable frequency motor and high-power electric equipment. If it cannot be far away, a metal instrument box should be installed outside the level gauge to isolate and shield, and the instrument box should also be grounded.

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