2-Wire Radar Level Transmitter for Solids Level Measurement.
The extremely narrow microwave pulse emitted by the antenna of the radar level transmitter can travel at the speed of light and part of its energy, which is reflected off the surface of the target medium, is received again by the same antenna. The time lapse between pulse emission and reception by the antenna is proportional to the distance between the surface of the target medium and the reference point on the antenna.

However, as the electromagnetic wave is transmitted at extremely high speed, which leads to a short time lapse radar level transmitters have adopted a special demodulation technology, enabling accurate detection of the time lapse between pulse emission and reception, thus generating accurate measurement results.

Application reference:

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The RD900 Series radar level transmitter offers the following unique features:
• Non-contact measurement
• Easy set-up and installation
• High accuracy
• Unaffected by dust generation
• Loop-Powered
Equipped with advanced microprocessor and unique Echo Discovery echo processing technology, the
radar level transmitter can be used under various process conditions for solid level measurement.


Continuous level measurement in powders and solids:
• Cement
• Coal
• Iron ore
• Fly ash
• Plastic granular
• Lime slurry
• Pulp & paper
• Corn, soybean, flour


Maximum Measurement Range 70 m
Measurement Accuracy ±10mm
Process Temperature -20 to 120ºC
Process Pressure: -1 to 40 bar (Not applicable for sensor with gimbal option)
Frequency Range: 26 GHz
Signal Output: 4 to 20 mA
Fault Signal Constant current output: 20.5mA / 22mA / 3.9mA
Power: 2-wire (16 to 26 VDC)
Power Consumption Max. 22.5mA
LCD: Display Optional
Process Connection: Flange Stainless Steel
Material: Stainless Steel
Housing: Stainless Steel
Seal ring between housing and housing cover: Silicone
Cable Entry/Plug One cable entry of M20x1.5 (cable diameter of 5 to 9m) One binding of M20x1.5
Flange Accessories: Stainless steel gimbal flange
Antenna: Stainless steel ø196
3dB Beam Angle: 5º

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