Xi'an Kacise Optronics Co.,Ltd. |
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80G FM Radar Level Meter
Principle:
The general principle of the FM continuous wave radar level gauge
is that the radar emits electromagnetic waves on the top of the
tank, and the electromagnetic waves are received by the radar after
being reflected by the medium. The frequency difference δf between
the received signal and the transmitted signal is proportional to
the distance R from the surface of the medium: R=C (speed)*δf
(frequency difference)/2/K (frequency modulation slope). Because
the speed of light C and the frequency modulation slope K are
known, the frequency difference δf can be estimated to obtain the
distance R from the radar installation position to the material
surface, and then through the known total height of the tank,
subtract the spatial distance from the radar to the material
surface (referred to as Empty height) to get the height of the
material level.
Characteristic:
1. Millimeter-wave radar, with a measurement accuracy of up to
±1mm, and a minimum blind area of 0.1m.
2. The smaller antenna size satisfies the measurement of more
working conditions.
3. A variety of lens antennas, smaller launch angle, more
concentrated energy, stronger echo signal, under the same
industrial and mining conditions, compared to other radar products
have higher reliability.
4. With stronger penetrability, it can be used normally even if
there is adhesion and condensation.
5. The dynamic signal range is larger, and the measurement of low
dielectric constant medium is more stable.
6. A variety of measurement modes, the radar reaction time in the
fast measurement mode is less than 1S.
Technical parameter
Measuring medium | Liquid |
Measuring range | 0.3m~30m |
Process connection | Flange ≥DN80 |
Process temperature | -40~200℃ |
Process pressure | -0.1~2.5 MPa |
Antenna size | 76mm lens antenna |
Antenna material | PTFE |
Accuracy | ±2mm |
Protection level | IP67 |
Center frequency | 80GHz |
Launch angle | 3° |
Power source | Two-wire system/DC24V Four-wire system/AC220V Six-wire system/DC12-24V |
Shell | Aluminum/Plastic/Stainless steel |
Signal output | Two-wire system/4...20mA/HART protocol Four-wire system/4...20mA/HART protocol Six-wire system/4...20mA/HART protocol |
Product Size (unit: mm)
Field application