FTR20

Flow indicator for bulk solids
- Measuring principle

The compact flow indicator for bulk solids is a non-contact device based on microwave technology and works with a frequency of 24.15 GHz.

The microwave signal is emitted via an integrated horn antenna and reflected by bulk solids as they move. In the process, the device measures the strength of the reflected, frequency-shifted energy (Doppler effect) and uses it to form a display value or output signal.
The LED bar display and the 4-20 mA current output reflect the relative signal strengths of the signal reflected by the medium as it moves.
It is not possible to measure absolute sizes with the FTR20!

The measuring principle is independent of:
- Temperature and pressure in containers
- Aggressive and abrasive media
- Dust, steam, mist, smoke and sediment deposits or build-up
- Airflow, air layers of different temperature
Non-contact measurement procedure, therefore no wear and no maintenance required
It is possible to take a measurement through non-metallic container materials directly from the outside