The Tokyo Keiki MRF-10 flat radar level sensor

The MRF-10 is a loop-powered radar level gauge, which can be installed easily in a variety of applications. The MRF-10 employs anon-contact radar level gauging principle based on pulsed microwave signals and is suitable for level measurement in applications such as liquids, pastes and slurries.

The MRF-10 uses a 5.8GHz low power pulsed microwave. It provides good measurement stability, because propagation of microwaves is less affected by change of temperature,pressure or gas conditions in tank.

Measuring principle

The MRF-10 level gauge utilizes the time-of-flight measurement principle involving short microwave pulses. Installed at the top of tanks or channels, it emits short microwave pulses toward liquids or pastes.

Reflected microwave signals from the surface are received by the antenna, and processed by electronics. The time from transmission to reception is determined by the microprocessor and converted as distance from the transmitter to the liquid surface (ullage) with output of the calculated level from the measured ullage (Level = Tank Height – Ullage).