Non-Invasive Ultrasonic Level Switch

Non-Invasive Ultrasonic Level Switch 2020-10-10T10:15:23+00:00

Project Description

Non-Invasive ultrasonic level switch


  • Non-Invasive ultrasonic level switch
  • Non-Invasive ultrasonic level switch
  • Non-Invasive ultrasonic level switch
  • Non-Invasive ultrasonic level switch
  • Non-Invasive ultrasonic level switch


  • Non-Invasive level measurement with safety
  • On point measuring and multi-point measuring
  • Easily installation, Trial run, and Maintenance
  • Video display and remote on the spot
  • The Sonar Technology



The Non-Invasive level switch is a new type of liquid level monitoring and alarming device. It is mainly used to monitor the liquid level of the storage tank, realize the upper and lower limit alarm or monitor whether there is medium in the pipeline (dry state protection). It can be applied to the liquid level process control of medicine, petroleum, chemical industry, power, food and other industries.

Operating Principle

The sonar pulse generated by the sensor (probe) of the Non-Invasive level switch can pass through the container wall. This pulse will propagate in the container wall and liquid and will be reflected back. Through the detection and calculation of this reflection characteristic, we can judge whether there is liquid in the container at the monitoring point. At the same time, the Non-Invasive level switch can output relay signals to the later stage electrical appliances or other equipment, so as to realize the monitoring or control of liquid level.


The sonar pulse of the Non-Invasive ultrasonic level switch can pass through the tank wall, the pulse propagates in the tank wall and liquid, then be reflected. After detect and calculate the reflective, it can show whether there is the liquid or not. It also can send the signal to other equipment to detect or control the liquid level.

Non-Invasive ultrasonic level switch

Technical specifications

Power DC 24V
Signal Output Relay Output (passive node)
Relay capacity (DC 30V 6A ) 、( AC 250V 6A)
Repeatability error 土5mm
Container Wall Thickness Max 60mm
Container Material Steel, stainless steel, glass, non foaming plastic and other dense materials
Measurable medium Pure liquid, emulsion liquid, suspension liquid
Ambient temperature -20℃~+70℃
Ambient humidity (0%~95%) RH
Rated Power 3W
Transmitter Material Cast Aluminum
Protection Rating IP67
Electrical Connector M20 X 1.5
Hazardous Area Approval ExdIICT6
Weight  2 KG
Dimension Length158mm×Width122mm×Height148mm


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