Radar level transmitter antenna microwave pulse is narrow, the downward transmission antenna. Microwave exposure to the medium surface is reflected back again by the antenna system receives, sends the signal to the electronic circuit automatically converted into level signals (because the microwave propagation speed, electromagnetic wave to reach the target and the reflected back to the receiver this time is almost instantaneous.
Datum measurement: Screw thread bottom or the sealing surface of the flange.
Note: Make sure the radar level meter at the highest level cannot enter the measuring blind area.