working principle

Guided wave radar level gauge, a liquid level measuring instrument in the chemical industry. Guided wave radar level gauge is a radar level gauge based on the principle of time-domain reflection (TDR)

The electromagnetic pulse of the radar level gauge propagates along the steel cable or probe at the speed of light. When it encounters the surface of the measured medium, some of the pulses are reflected to form echoes and return to the pulse transmitter along the same path

The distance between the emitting device and the surface of the measured medium is proportional to the propagation time of the pulse between them, and the liquid level height is calculated.

Technical parameters of guided wave radar level gauge:

Accuracy: Liquid: ± 5mm when the range is less than 15m;

When the range is greater than 15, the measured value is 5mm ± 0.05%. The flange temperature is -30~200 ℃/-30~150 ℃,

Explosion proof environmental temperature: -30~60 ℃/-30~55 ℃, optional standard output 4-20mA/HART, fault diagnosis output 22mA,

Power supply: 18-35VDC/less than 28VDC, protection level: NEMA (IP65),

Explosion proof ATEX II 1G or II 1/2 D T 100 ℃ EEX ia II C T6... T3 or EEX ia II B T6... T3

Application of guided wave radar level gauge:

The guided wave radar level gauge is applied to water and liquid storage tanks, acid and alkali storage tanks, slurry storage tanks, solid particles, and small oil storage tanks. Various conductive, non-conductive, and corrosive media.

Such as coal bunkers, ash silos, oil tanks, acid tanks, etc.
guided wave radar
guided wave radar

Technical advantage: Radar level gauge for continuous level measurement of liquids, particles, and slurries. The measurement of radar level gauge is not affected by medium change, temperature change, inert gas and steam, dust, foam, etc. The accuracy of the radar level gauge is 5mm, the range is 60 meters, and it can withstand high temperatures of 250 degrees and high pressures of 40 kilograms. The radar level gauge is suitable for explosive hazardous areas. Accurate measurement, wide applicability, long-term maintenance, worry free and effortless.

Installation instructions note:

Precautions for use

The guided wave radar level gauge has certain requirements for installation space, paying attention to the dielectric constant of the medium, and selecting the appropriate model based on the magnitude of the dielectric constant
Characteristics of guided wave radar level gauge
1. Any medium with a dielectric constant greater than or equal to 1.4 can be measured.
2. Generally used for measuring media with viscosity ≤ 500cst and not prone to adhesion.
3. The maximum range of pole radar can reach 6 meters.
4. It has strong inhibition ability to steam and foam, and the measurement is not affected.
5. For liquid materials with relatively low dielectric constants, a dual probe measurement method can be used to ensure good and accurate measurement accuracy.