Detection of the presence or not of flow in a pipe under pressure. The liquid must be free of magnetic particles.

The flow of liquid drives the paddle which actuates a Reed contact via a magnet mounted on top of the paddle.

A second magnet in opposition, pushes back the paddle when flow is decreasing.
This design allows the controller to be mounted in any position.

Mounting precautions:
Mounting could be on a vertical pipe with ascending flow; Then, threshold value will be greater than the one of table.
The pipe slope of a flowing down piping must be less than 40 %.

Accessories:
An amplifier relay ES 2001 protect the Reed contact and allows a switching power of up to 500 VA / 250 V AC / 5 A – 1 A / 125 V DC / 40 W). (See data-sheet 250-02)