SZRD-8084 FM Continuous Wave Radar Level Gauge Introduction: The general principle of the FM continuous wave radar level gauge is that the radar emits electromagnetic waves at the top of the tank, which are reflected by the medium and received by the radar. The frequency difference δ f between the received signal and the transmitted signal is proportional to the distance R on the surface of the medium: R=C (velocity) * δ f (frequency difference)/2/K (frequency modulation slope). Since the speed of light C and the frequency modulation slope K are known, the frequency difference δ f can be estimated to obtain the distance R between the radar installation position and the material surface. Then, by subtracting the spatial distance from the radar surface to the material surface (referred to as the empty height) from the known total height of the tank, the height of the material surface can be obtained. characteristic: 1. Millimeter wave radar, high frequency, accuracy up to ± 2mm, blind zone of 0.05m. 2. Lens antenna with small wave velocity angle, suitable for small diameter tanks and complex working conditions inside tanks 3. Energy concentration and measurement distance can reach up to 150m, which has high measurability compared to other radar products 4. Strong penetrability, it can also be used normally even with partial crystallization inside the tank. 5. Multiple measurement modes, with radar response time less than 1 second in measurement mode 6. Multiple types of lens antennas. Technical parameters: Application: Strongly corrosive liquids or liquids containing steam Measurement range: 0-60 meters Process connection: stainless steel+PTFE flange Antenna size: Fully enclosed lens antenna Accuracy: ± 2mm Protection level: IP67 Explosion proof rating: Exd IIC T6 Gb Frequency: 76-81GHz Power supply: two-wire/four wire/six wire system (DC24V/AC220V) Signal output: 4~20mA/HART/RS485 Modbus Display/Programming: Programmer with Bluetooth/5G remote network debugging
Introduction: The general principle of the FM continuous wave radar level gauge is that the radar emits electromagnetic waves at the top of the tank, which are reflected by the medium and received by the radar. The frequency difference δ f between the received signal and the transmitted signal is proportional to the distance R on the surface of the medium: R=C (velocity) * δ f (frequency difference)/2/K (frequency modulation slope). Since the speed of light C and the frequency modulation slope K are known, the frequency difference δ f can be estimated to obtain the distance R between the radar installation position and the material surface. Then, by subtracting the spatial distance from the radar surface to the material surface (referred to as the empty height) from the known total height of the tank, the height of the material surface can be obtained.
