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Guided Wave Radar Level ,Pulse Radar Level Meter ,Radar Level Sensor-PTRD901

Product description

Radar Level Gauge is a liquid (material) level recording instrument in the measurement.
The microwave pulse is sent by the antenna, and then is reflected by the material surface , then is received by the radar systems.
Then is sent to the electronic circuit, the microprocessor can identify the microwave pulse echo regenerate the material or the surface of the liquid.
The correct signal is done by intelligent software, up to millimeter accuracy, nonapplicable harsh environments.

The characteristics of radar level transmitter

1. Small antenna size, easy to install; Non-contact radar, no wear, no pollution.
2. Almost no corrosion, bubble effect; almost not affected by water vapor in the atmosphere, the temperature and pressure changes.
3. Serious dust environment on the high level meter work has little effect.
4. A shorter wavelength, the reflection of solid surface inclination is better.
5. Beam angle is small, the energy is concentrated, can enhance the ability of echo and to avoid interference.
6. The measuring range is smaller, for a measurement will yield good results.
7. High signal-to-noise ratio, the level fluctuation state can obtain better performance.
8. High frequency, measurement of solid and low dielectric constant of the best choice.


Product name:  radar level meter
Casing window Polycarbonate
The ground terminal Stainless steel
Cable entrance / plug One M20xl.5 cable entrance

One blind plug

Terminal Conductor cross section 1.0m
The output signal (4 ~ 20) mA/RS485
Communication protocol HART
Resolution 1.6u A
Fault signal Constant current output; 20. 5mA 22mA

22mA 3.9mA

The integral time (0 ~ 50) s, adjustable
Blind area the ends of the antenna
The maximum distance measurement 70 meters
Microwave frequency 26GHz
Communication interface HART communication protocol
The measurement interval about 1 second (depending on the parameter settings)


Model HQF901 HQF902 HQF903 HQF904 HQF905 HQF906
Application All kinds of corrosive liquid




Solid material, Strong dust


Solid material, Strong dust Solid particles, Powder


Hygienic liquid storage, Corrosive container
Measuring Range 10 meters 30 meter 70 meters 70 meters 30 meters 20 meters
Process Connection Thread, Flange Thread, Flange Universal Flange Universal Flange Thread, Flange Flange
Medium Temperature -40°C ~ 120°C


-40°C~ 150°C -40°C ~ 250°C


-40°C~ 250°C -40°C~ 250°C -40°C ~ 150°C


Process Pressure -0.1~0.3 MPa -0.1 ~ 4.0 MPa -0.1 ~ 0.1 MPa -0.1 ~ 0.1 MPa -0.1 ~ 4.0MPa -0.1 ~ 4.0MPa
Accuracy ± 5mm ± 3mm ± 15mm ± 15mm ± 10mm ± 3mm