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Name:6GHz low frequency radar level transmitter
Model:HBRD802
Measuring range:20m
Accuracy:±10mm
Working temperature:-40 ~ 180 ℃
Signal output:4~20mA/HART
Power supply:DC24V or AC220V

Suitable for medium: liquid, especially for corrosive liquid

Application: liquid level measurement with pressure; sewage level measurement; high volatile acid/alkali level measurement

Explosion-proof: Exia IIC T6 Ga/ Exd ia IIC T6 Gb

Measuring range: 20m

Aerials: rod antenna (PTFE)

Frequency: 6 GHz

Process temperature: (-40 ~ 180) ℃

Accuracy: ± 10mm

Process pressure: (-1.0 ~ 4.0) MPa

Signal output: (4 ~ 20) mA/HART

Scene display: 4 bits LCD, can be programmed

Power supply: 2-wire (DC24V)

                        4-wire(DC24V/AC220V)

Repeatability: ± 1mm 

Shell: Aluminum/Plastic

Connection: Flange (optional)


General dataMaterialAntenna PTFE, PP
ShellAluminum, plastic, anti-static PP, SS316
SealSilicone rubber
Shell windowPolycarbonate
Ground terminalStainless steel
Process connectionHBRD801G1½″A thread  or 1½″NPT thread or flange
HBRD802 PTFE flange
HBRD803Stainless steel flange
HBRD804Stainless steel flange
HBRD805Stainless steel flange
HBRD806Stainless steel flange
Power supply2-wireStandard (16~26)V DC
Intrinsically safe(21.6~26.4)V DC
Power consumptionmax.   22.5mA
Allow ripple
- <100HzUss < 1V
- (100~100K)HzUss < 10mV
Flameproof (22. 8~26. 4) V DC 2-wire
 (198~242) V AC    4-wire  /  110V AC   4-wire
Power consumption  max.  1VA,1W
CableCable entry/plugM20x1.5(cable diameter5~9mm)
Blind block  M20x1.5
Spring terminal Wire cross section 2.5mm²
OutputSignal output(4~20)mA/HART
Resolution 1.6μA
Fault signalCurrent output is unchanged;20.5mA;22mA;3.9mA
2-wire load resistanceSee below drawing
4-wire load resistanceMax 500Ω
Integration time(0~36)s adjustable

Technical

parameters

Blind zoneAntenna end
HBRD80120m(liquid)
HBRD80220m(liquid)
HBRD803 35m
HBRD804 35m
HBRD80520m
HBRD80615m
Measurement intervalabout 1s   (Depending on parameter settings)
Adjust timeabout 1s   (Depending on parameter settings)
Resolution1mm
Accuracy10mm or<0.1%(see below accuracy drawing)
Working storage transportation temperature (-40~80) ℃
Process temperature(Antenna)
HBRD801-40~130℃
HBRD802-40~130℃ (standard) /  -40~180℃ (high temp)
HBRD803-40~130℃ (standard) /  -40~180℃ (high temp)
HBRD804-40~130℃ (standard) /  -40~180℃ (high temp)
HBRD805-40~130℃ (standard) /  -40~180℃ (high temp)
HBRD806 (-40~400)℃
Relative humidity <95%
Working pressure Max.  4MPa
Shockproof Mechanical vibration 10m/s² , (10~150)Hz


Small antenna size, easy to install ; Non-contact radar, no wear, no pollution.

Almost no corrosion, bubble effect; almost not affected by water vapor in the atmosphere, the temperature and pressure changes.

Serious dust environment on the high level meter work has little effect.

A shorter wavelength, the reflection of solid surface inclination is better.

Beam angle is small, the energy is concentrated, can enhance the ability of echo and to avoid interference.

The measuring range is smaller, for a measurement will yield good results.

High signal-to-noise ratio, the level fluctuation state can obtain better performance.

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The 6GHz intelligent series radar level gauge is suitable for non-contact continuous measurement of liquid, slurry, granular material and block material. It is suitable for temperature and pressure changes; there are occasions for inert gas and volatilization.


It adopts the measurement method of microwave pulse and can work normally in the industrial frequency band. The beam energy is low and can be installed in various metal, non-metallic containers or pipes, and it is harmless to the human body and the environment.


Antenna system to launch and microwave receiving energy is very low, very short pulse. Radar waves travel with the speed of light. The running time can be through the electronic components are converted into a signal. Measurement of this special time extension method can realize stable, accurate in a very short period of time.


Even if the condition is very complex, the presence of false echo, with the latest micro-processing technology and debugging software also can analyze the level echo accurately.

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Microwave antenna to receive the reflected pulse and transmitted to the electronic circuit, a microprocessor to signal processing, to identify the micro pulse generated on the material surface echo. Echo recognition is completed by the pulse system, the accuracy can reach millimeter level. From the material surface distance between D and T pulse is proportional to the time travel:

                 D=C×T/2

                 Where C is the speed of light

                 Because of the air tank is a known distance E, L:

                 L=E-D

 

By setting the empty tank height E (= zero), the full height of F (= full scale) and some application parameters, application parameters automatically makes the instrument to measure the environment. 4 - 20mA with a corresponding output.





Liquid, especially for corrosive liquid

Liquid level measurement with pressure; sewage level measurement; high volatile acid/alkali level measurement

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