Name: | 6GHz low frequency radar level transmitter |
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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 data | Material | Antenna | PTFE, PP |
Shell | Aluminum, plastic, anti-static PP, SS316 | ||
Seal | Silicone rubber | ||
Shell window | Polycarbonate | ||
Ground terminal | Stainless steel | ||
Process connection | HBRD801 | G1½″A thread or 1½″NPT thread or flange | |
HBRD802 | PTFE flange | ||
HBRD803 | Stainless steel flange | ||
HBRD804 | Stainless steel flange | ||
HBRD805 | Stainless steel flange | ||
HBRD806 | Stainless steel flange | ||
Power supply | 2-wire | Standard | (16~26)V DC |
Intrinsically safe | (21.6~26.4)V DC | ||
Power consumption | max. 22.5mA | ||
Allow ripple | |||
- <100Hz | Uss < 1V | ||
- (100~100K)Hz | Uss < 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 | ||
Cable | Cable entry/plug | M20x1.5(cable diameter5~9mm) | |
Blind block M20x1.5 | |||
Spring terminal | Wire cross section 2.5mm² | ||
Output | Signal output | (4~20)mA/HART | |
Resolution | 1.6μA | ||
Fault signal | Current output is unchanged;20.5mA;22mA;3.9mA | ||
2-wire load resistance | See below drawing | ||
4-wire load resistance | Max 500Ω | ||
Integration time | (0~36)s adjustable | ||
Technical parameters | Blind zone | Antenna end | |
HBRD801 | 20m(liquid) | ||
HBRD802 | 20m(liquid) | ||
HBRD803 | 35m | ||
HBRD804 | 35m | ||
HBRD805 | 20m | ||
HBRD806 | 15m | ||
Measurement interval | about 1s (Depending on parameter settings) | ||
Adjust time | about 1s (Depending on parameter settings) | ||
Resolution | 1mm | ||
Accuracy | 10mm 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.
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.
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