FMM20

Electromechanical level meter
- Measuring principle

The electromechanical level meter is a simple, reliable and reproducible measuring principle that is independent of the medium characteristics.

A motor/transmission combination lowers a tape measure that is weighted with a sensing weight onto to the product surface.
When the sensing weight reaches the surface, the tape is released and a switching signal is triggered as a result. This signal switches the motor on, so that the tape is wound back in.
The tape runs over a counter wheel that meters a counter pulse per defined unit of length, both when the tape is being lowered and raised.
The FMM counts the pulses and converts them into a signal corresponding to the level.
The continuously running measurement process can be triggered manually by pressing a button on the device, by a corresponding input signal or can be triggered periodically.