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Products > Level Meter > Radar Level Meter > 6G Low frequency high temperature radar level transmitter for blast furnace
Product name : 6G Low frequency high temperature radar level transmitter for blast furnace
Product No. : HBRD806
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  Details:
Brief Description

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.

Main Features

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.

Technical Parameters

Suitable for medium: solid, especially suitable for high temperature conditions

Application: blast furnace level measurement

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

Measuring range: 15m

Antenna: horn antenna

Frequency: 6 GHz

Process temperature: (-40 ~ 400) ℃

Accuracy: ±20mm

Process pressure: (-0.1 ~ 0.3) 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


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

Applications

Solid, especially suitable for high temperature conditions

Blast furnace level measurement




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