2-高频雷达液位计
Liquid, solid
gas
The 6GHz intelligent series radar level gauge is suitable for non-contact continuous measurement of the level of liquid, slurry, granular material and block material. It is suitable for the occasions where the temperature and pressure change greatly; there are inert gases and volatilization. The microwave pulse measurement method is adopted, and it can work normally in the industrial frequency band. The beam energy is low, and it can be installed in various metal and non-metal containers or pipes without harm to the human body or the environment.
Transmit and receive very short microwave pulses with very low energy through the antenna system. Radar waves travel at the speed of light. The running time can be converted into a level signal by electronic components. A special time extension method can ensure stable and high-precision measurement in a very short time. Even if there are false echoes under complicated working conditions, advanced micro-processing technology and debugging software can accurately analyze the level echoes. The antenna receives the reflected microwave pulse and transmits it to the electronic circuit. The microprocessor processes this signal to identify the echo generated by the micro pulse on the surface of the material. The correct echo signal identification is completed by the pulse software, and the accuracy can reach the millimeter level. The distance D from the surface of the material is proportional to the time travel T of the pulse:
D=C×T/2
where C is the speed of light
Because the distance E of the empty tank is known, the level L is:
L=E-D
is set by entering the empty tank height E (=zero point), the full tank height F (=full scale) and some application parameters. The application parameters will automatically adapt the meter to the measurement environment.
1. The antenna is small in size and easy to install; non-contact radar, no wear and no pollution;
2. Hardly affected by corrosion and foam; hardly affected by water vapor, temperature and pressure changes in the atmosphere;
3. The severe dust environment has little effect on the work of the high-frequency level meter;
4. The wavelength is shorter, and it has better reflection on the inclined solid surface;
5. The beam angle is small and the energy is concentrated, which enhances the echo ability and at the same time helps to avoid interference;
6. The measurement blind area is smaller, and good results can be obtained for small tank measurement;
7. High signal-to-noise ratio, better performance can be obtained even in fluctuating conditions.
Applicable medium | Liquid, solid, powder |
Application | Measurement of liquid and solid powder, complex process conditions |
Explosion proof certification | Exia IIC T6 Ga/Exd ia IIC T6 Gb |
measuring range | 80m |
Frequency | 26 GHz |
measurement accuracy | ±10mm |
Process temperature | （-40～250）℃ |
Process pressure | （-0.1～4）MPa |
signal output | （4～20）mA/HART |
On site display | Four digit LCD programmable |
Power supply | Two wire system (DC24V) Four wire system (DC24V/AC220V) |
Shell | Aluminum/plastic |
Process Connection | Thread/flange (optional) |
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