1、 Principle

The radar level gauge antenna emits extremely narrow microwave pulses, which propagate at the speed of light in space. When they encounter the surface of the measured medium, some of their energy is reflected back and received by the same antenna. The time interval between transmitting and receiving pulses is proportional to the distance from the antenna to the surface of the measured medium. Due to the extremely high propagation speed of electromagnetic waves, it is difficult to confirm the time interval between the emitted pulse and the received pulse, which is very small (in the nanosecond range). This series of radar level gauges adopts a special correlation demodulation technology that can accurately identify the time interval between the transmitted pulse and the received pulse, thereby calculating the distance from the antenna to the surface of the measured medium.

2、 Characteristics

1. The radar level gauge adopts a transmission frequency of up to 26GHz, which has the advantages of small beam angle (minimum 5 degrees), concentrated energy, and stronger anti-interference ability,

2. Greatly improved measurement accuracy and reliability; The antenna size is small, making it easy to install and install antenna protective devices such as dust covers;

3. The measurement blind spot is smaller, and it can also achieve good results for measuring small cans;

4. Shorter wavelength makes it more suitable for level measurement of small particulate matter.

3、 Technical parameters

Maximum range: 30m

Measurement accuracy: ± 10mm

Process connection: Thread G1 Half A, flange

Material Science:

Antenna: PTFE, PP

Flange: Stainless steel 316L

Shell: Aluminum, Stainless Steel 316L

Sealing between shell and shell cover: silicone rubber

Grounding terminal: stainless steel

Supply voltage:

Two wire standard type: 15~36VDC

Intrinsic safety type: 15~30VDC

Four wire intrinsic safety+explosion-proof: 24V DC ± 10%, 220V AC ± 10%

Output parameters: (4-20) mA/HART two-wire system