The radar level gauge has many advantages, with strong adaptability to temperature and pressure being a significant feature. Moreover, it is not affected by the volatility of the measured object during measurement. Its beam energy is very low, and it can work normally in the industrial frequency band without causing any harm to human beings or the environment. The accuracy and precision of the radar level gauge are very high, and it requires professional installation and correct use to achieve good measurement results. So when installing and using, it is necessary to follow the detailed explanation of professional engineers and pay attention to the following issues.
1. Do not install the device at the feeding port, feeding curtain, vortex, etc., as the measured object may produce false echoes due to partial amplitude during injection, resulting in inaccurate data. Vortices can cause irregular liquid levels, affect microwave signal scattering, cause signal attenuation, and lead to incorrect data, so attention should be paid.
2. The installed container is equipped with a stirrer, which generates irregular vortices during stirring, causing signal attenuation, and the blades on the stirrer also reflect microwave signals, resulting in false data. Especially when the object being measured has a relatively small dielectric constant and reaches a low liquid level, the agitator has a serious impact on the data detected by the equipment. So the installation of the radar level gauge should avoid the vicinity of the mixer.
When facing corrosive and crystallized objects and liquids, in order to prevent the sensor of the radar level gauge from being affected, instrument models equipped with polytetrafluoroethylene protective film and split flange structure are generally used. However, the high temperature resistance of the parts is not very high, and polytetrafluoroethylene can only reach 200 ℃. So in order to avoid any impact on the measurement data due to component reasons, installation requires a certain safe distance to be maintained between the flange end face and the liquid level.
Radar level gauge
If the container being installed is concave or conical, it is important to pay attention to the radar beam reaching the low point of the container during debugging. If the liquid level of the measured object is lower than the low point recorded by the radar beam, it will not be possible to measure. Therefore, during installation, it is necessary to adjust the low point position as much as possible to ensure the accuracy of the measurement data.