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80g-radar-level-meter
80g-radar-level-meter
80G Radar Level Meter
80g-radar-level-meter

QTRD-81 80g-radar-level-meter

Frequency: 76~81GHz, FM scanning frequency width 5GHz
Ambient Temperature: -30~+70℃
Power Supply: 18~28 VDC, 85~865 VAC
Structurer: Compact, remote
Protect Grade: IP67
Introduction
Application
Technical Data
Drawing
Introduction
Frequency modulated continuous wave (FMCW) is adopted for radar level instrument (80G). The antenna transmits the high frequency and frequency modulated radar signal. 
The frequency of the radar signal linearly increases. the transmitted radar signal is reflected by dielectric to be measured and received by antenna. at the same time, the difference between the frequency of transmitted signal and that of the received signal is proportional to the measured distance. 
Therefore, the distance is calculated by the spectrum derived from the analog-to-digital conversion frequency difference and the fast fourier transform (FFT)
Advantages
(1) Based on self-aeveloped milimeter-wave radio frequency chip to achieve a more compact radio frequency architecture.
(2) Higher signal-to-noise ratio, almost unaffected by level fluctuations.
(3) The measurement accuracy is millimeter-level accuracy (1mm), which can be used for metrology-level measurement.
(4) The measurement blind area is small, and the effect of measuring the liguid eve of small storage tanks is better.
(5) The beam angle can reach 3 and the energy is more focused,effectively avoiding false echo interference.
(6) High frequency signal, can effectively measure the level of medium with low dielectric constant (e>1.5).
(7) The antenna adopts PTFE lens, which is effective anti-corrosion and anti-hanging material.
Application
Measure the level of solid particles, chemical liquid tank, oil tank and process containers.
1.Radar level meter is working based on electromagnetic wave. So it could have max 120m measure range.
2.Compared with other type level meter, 80G radar level meter could measure different kinds of oil, chemical liquids, solid powder,and many other mediums.
3. 80G radar level meter could work in harsh working condition. It won't be affected by temperature, pressure and humidity. With PTFE horn, it even could work in corrosive condition, such as acid liquid.
4.Customer also could choose different connection methods, such as flange, thread, bracket.
 
 Oil tank
Oil tank
Mine powder
Mine powder
River
River
Sea side
Sea side
Lake side
Lake side
Solid Particles
Solid Particles
Technical Data

Table 1 : Technical Parameters


Picture
Model QTRD-81 QTRD-82 QTRD-83 QTRD-84 QTRD-85 QTRD-86 QTRD-87


Application

Slightly
corrosive
liquid, stirring, condensation

Slightly
corrosive
liquid, stirring, condensation

Strong dust, Solid, Block, Powder

Strong
corrosive
liquid, stirring, condensation
High
temperature, strong
corrosive liquid, stirring,
condensation

Strong
corrosive
liquid, stirring, condensation
High
temperature and high
pressure  liquid and solid
Process
Connection
1.5" Thread, Flange 3.5" Thread, Flange Flange with purging Flange Flange Flange Flange
Standard
Process
Temperature
-30~+100℃ -30~+80℃ -30~+100℃ -30~+75℃ -40~+200℃ -30~100℃ -40~
+1000℃
Process  Pressure -0.1~0.3 MPA -0.1~0.3 MPA -0.1~0.3 MPA -0.1~0.1 MPA -0.3~2 MPA -0.1~2 MPA -0.5~3 MPA
Beam Angle
Measuring Range 10m, 20m, 30m 10m, 20m,
30m, 80m,
120m
10m, 20m,
30m, 80m,
120m
10m, 20m,
30m, 80m,
120m
10m, 20m,
30m, 80m,
120m
10m, 20m, 30m 10m, 20m,
30m, 80m,
120m
Accuracy ±1 mm(≤30mm) ±3 mm(≥30mm) ±5 mm ±1 mm(≤30mm), ±3 mm(≥30mm)
Resolution ±1mm (Under ideal laboratory condition )
Wetted Parts PTFE Carbon steel,  SS304, SS316
Blind zone 0.15m for 35m, 0.4m for 85m, 0.6m for 120m
Frequency 76~81GHz, FM scanning frequency width 5GHz
Ambient
Temperature
-30~+70℃
Shell Material Cast Aluminium, SS304, SS316
Power Supply 18~28 VDC, 85~865 VAC
Signal Output Two-wire / four-wire 4~20mA, HART / RS485 Modbus / Bluetooth
Structurer Compact, remote
Ex-proof Ex d IIC T6 Gb optional
Protect Grade IP67
Language English, Spanish, Russian, Portuguese, Korean


Table 2 : Model Selection 
  QTRD-81 X X X X X X X X
Measuring Range 10m 10              
20m 20
30m 30
Process Connection G1½"  thread 1
1½"  NPT thread   2
DN40 flange 3
DN50 flange 4
DN80 flange 5
DN100 flange 6
DN125 flange 7
DN150 flange 8
Power Supply 18~28 VDC D
85~265 VAC A
Medium Temperature -30~100℃ T
Signal Output Two-wire 4~20 mA + HART H
4~20 mA + RS485 Modbus RS
Bluetooth B
Shell Material Cast Aluminium (standard) A
SS304 4
SS316 6
Explosion Proof Without N
Ex d IIC T6 Gb E
Structure Compact C
Remote with 10m cable R
Remark: If you require process connection in flange type, please indicate flange standard before order.
Drawing
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