VRPWRD82 Non-contact Intelligent Radar Level Transmitters
Working principle:
The radar works with FMCW principle. There is a frequency difference between the continuous waves emitted and the echoes returned, which is proportional to the distance between the antenna reference plane and the top surface of the medium. The signals of the echoes undergo the special processing such as Fourier transform (FT), the unique high-precision algorithms are used during the processing, so that the instrument can accurately measure the level of the medium.
Features
1. Non-contact measurement, no wear, no contamination;
2. The antenna size is small, and easy to be installed;
3. Shorter wavelength, better reflection on inclined solid surfaces;
4. The upper dead zone is smaller, and they are more suitable even for the level measurement in small storage tanks;
5. The beam angle is small and the energy is concentrated, which not only enhances the echo capability, but also helps to avoid interference from a possible obstacle;
6. Almost unaffected by corrosive vapors and foam;
7. Almost unaffected by changes of water vapor, temperature, and pressure in the atmosphere;
8. The instrument in severe dust environment can also accurately read the real echoes from the actual level;
9. Having high signal-to-noise ratio, can keep better performance even under fluctuating conditions;
10. 80GHz frequency radar level transmitter is the best choice for measuring solid level and low dielectric constant liquid level. Be suitable for the level measurements of those measured mediums which dielectric constants are respectively ≥1.8.
Applications:
Level measurement of various liquids in different kinds of tanks or containers in chemical, metallurgical, food processing, waste water and other industries. (For example: hydrochloric acid, nitric acid, sulfuric acid, lye, etc.).
Specifications:
Measuring range: 10m/20m/35m
Accuracy: ±1mm
Process connection: Composite Flange
Process temperature: -40 - +200℃
Process pressure: -0.1 - +4.0MPa
Operating frequency: 80GHz
Signal output: 4- 20mA/HART protocol (24V DC), two-wires/four wires
4-20mA/HART protocal (220V AC, four-wires)
RS485/MODBUS (6-30V DC)
BlueTeeth setting: Optional
Explosion-proof grade: Ex ia IIC T6 Ga; Ex d IIC T6 Gb
Enclosure protection grade: IP68 (aluminum housing), IP67 (plastic housing)
Lens size, emission angle and measuring range:
VRPWRD80 Series Intelligent Radar Level Transmitters（EPT）.pdf
