Xi 'an Qinwei Instrument Factory (General Partnership Enterprise)
                                                                                                           
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FMCW Radar Level Gauge IP67 80 Ghz Radar Level Transmitter High Accuracy

Price Negotiable
Price: Negotiable
MOQ: 1Set
Delivery Time: 5-8 work days
Brand: QINWEIYB
Product Description

Frequency modulated radar level gauge

The frequency modulated radar level gauge, also known as Frequency Modulated Continuous Wave (FMCW) radar level gauge, is a high-precision liquid level measurement device.

Working Principle

Continuous microwave pulses with frequency modulation are emitted through the antenna system. These pulses are reflected when they encounter the surface of the medium and are received by the same antenna. The received signal is processed through amplification, mixing, etc., to obtain a difference frequency signal that is proportional to the frequency difference between the transmitted and received signals. This frequency difference is proportional to the propagation time of the microwave pulse in the medium. By measuring the frequency of the difference frequency signal and combining it with the speed of light, the propagation distance of the microwave pulse in the medium can be calculated. Then, based on the geometric shape and size of the storage tank or container, the propagation distance is converted into the liquid level height.

Product Parameters

Parameter Description
Applicable Medium Strongly corrosive liquids, steam, foam
Application Scenarios

Chemical containers, sewage pools, sulfuration tank liquid level, distillation tanks

Measurement Range 0.05m~10/20/30/60/100m
Process Connection Flange ≥ DN50
Process Temperature -40~80℃
Process Pressure -0.1~2.5MPa
Measurement Accuracy ±1mm (when the range is below 35m); ±5mm (when the range is between 35m-100m)
Frequency Range 80GHz
Protection Class IP67
Power Supply 2-wire/DC24V (standard) 4-wire/AC220V
Signal Output 4~20mA/Hart/RS485
On-site Display LCD (standard)
Housing Material Cast aluminum (standard)/304 stainless steel
Antenna Material PTFE
Antenna Size 42mm lens antenna (determined by flange size)
Beam Angle
Protection level Exia lC T6 Ga/ Exd lC T6 Gb
 Product Advantages
  • High Precision: Utilizing continuous frequency modulation technology, it offers high measurement accuracy with an error as low as ±1mm, making it suitable for industrial processes with high requirements for liquid level measurement accuracy.
  • High Reliability: The non-contact measurement method is not affected by the properties of the medium, such as viscosity and corrosiveness. Moreover, there are no moving parts inside, minimizing mechanical failures and ensuring stable and reliable performance even in complex working conditions.
  • Wide Applicability: It is suitable for liquid level measurement in various storage tanks, troughs, or containers, and can measure liquids of various properties, including corrosive and viscous liquids. It is widely used in multiple industries such as petrochemicals, food processing, and water treatment.
  • Easy Installation and Maintenance: Installation is relatively simple, requiring only the installation of the antenna system on the top or side of the storage tank or container. Maintenance is minimal, typically involving only regular checks of the antenna system's cleanliness and the tightness of the connection lines.
  • Withstand pressure up to 64bar, and the medium temperature range is from -60℃ to +600℃. Supports communication protocols such as HART/Profibus PA.

Product Display

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Company Xi 'an Qinwei Instrument Factory (General Partnership Enterprise)
Location No. 143, Sanqiao Street, Xi'an City, Shaanxi Province, China
Contact Person Wang

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