Radar Level Sensor
Radar Level Sensor
Radar Level Sensor
Radar Level Sensor
  1. Radar Level Sensor
  2. Radar Level Sensor
  3. Radar Level Sensor
  4. Radar Level Sensor

Radar Level Sensor

The QYL-RL radar level sensor is designed for liquid level measurement in conventional environments. It has a maximum range of 65m and can meet most liquid level measurement needs.

  • Model: QYL-R04
  • MOQ: 1PCS
  • Payment: Wire transfer/ Credit card/ PayPal
  • Lead Time:5-7 days
  • OEM/ODM: Available

liquid radar level sensor

 

 

This QYL-R04 radar level sensor is designed for continuous liquid level monitoring in rivers, tanks, channels, and flood warning systems.

 

Principle

The general principle of the FM continuous wave radar level sensor is that the radar emits electromagnetic waves at the top of the tank. The electromagnetic waves are received by the radar after hitting the medium and being reflected. The frequency difference δf between the received signal and the transmitted signal is proportional to the distance R from the surface of the medium: R=C(speed)*δf(frequency difference)/2/K(frequency modulation slope). Because the speed of light C and the frequency modulation slope K are known, the frequency difference δf can be estimated to obtain the distance R from the material surface at the radar installation position. Then, the spatial distance from the radar to the material surface is subtracted from the known total height of the tank body (referred to as empty height) to obtain the height of the material level.

  • Primarily composed of an electronic control unit and antenna, it has no moving parts and is immune to mechanical wear. Compared to mechanical level measuring instruments, it offers a longer service life and is truly maintenance-free.
  • It can measure the level of most liquids. The microwaves it emits can penetrate a vacuum, requiring no transmission medium, and are minimally affected by atmospheric pressure, steam, or volatile mist within the tank.
  • Its non-contact measurement is unaffected by the physical properties of the tank liquid, such as density and concentration. It also offers a wide measurement range and strong corrosion resistance.
  • It is easy to install, has a low failure rate, is simple to maintain, and offers high accuracy and reliability.
  • It supports Bluetooth debugging via mobile phones, facilitating field maintenance work.
Parameter Description
Output 4-20mA/HART/RS485/Modbus
Frequency range 76-81G Hz
Operating pressure -0.1~0.1MPa
Accuracy ±1mm
Antenna beam angle 8°
Housing material PP/Stainless steel/aluminum alloy
Range 0.2-65m
Operating humidity 0-95%
operating temperature -40~75℃
Power supply DC18-28 V
Protection level IP68
Display No
Installation Thread/ bracket

Based on radar microwave detection technology, it measures water levels in a non-contact manner, solving the typical problem of immersion level gauges being easily clogged by mud. It is not affected by meteorological conditions such as temperature, humidity, wind, and pressure, and can work stably around the clock. It is widely used in water conservancy projects such as reservoir gates, river pipelines, and open irrigation channels.

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