Material flow monitor with blockage detector CTH

The material flow monitor with blockage detector FlowJam Plus is a logical development of the established FlowJam sensor which has proved its worth in thousands of applications:

rapid detection of material movement (Flow/NoFlow)
additional function “Detection of blockage” or “Material flow interruption”
operates without contact using microwaves
a particularly reliable device since microwaves can pass through material accumulations
measurement can be taken from outside all non-metallic tank walls, housings, hose lines or pipelines
can be used even in difficult conditions, in other words, high operating temperatures, and pressures and in the version for Atex zones (with the help of a process adapter)

Description

Use

The FlowJam Plus sends microwaves into the pipeline in which the material flows. This may be a freefall pipeline or a pneumatic transport system.
The microwave signals are reflected by the moving solid particles. A shift in the Doppler frequency between the emitted and received signals means that the material is moving, in other words, “Flow”. If this Doppler shift does not take place, there is no material movement and the sensor indicates “NoFlow”.
If this state occurs, the FlowJam Plus can detect on the basis of clear characteristic values from the reflection signal whether a blockage has formed from below or the material supply has been interrupted from above. This switching condition is output by a second relay.