Whether the radar level gauge can be measured correctly depends on the signal of the reflected wave. If at the selected installation location, the liquid level does not reflect the electromagnetic wave back to the radar antenna or there is interference in the range of the signal wave to reflect the interference wave to the radar level gauge, the radar level gauge will not accurately reflect the actual level. Therefore, the reasonable selection of the installation position is very important for the radar level meter, and the following points should be paid attention to when installing: