Flow switch to detect flow and no-flow of solid products
This microwave switch provides an effective, non-contact way of detecting the flow or no-flow of a wide range of particulate materials.
The flow switch uses a microwave Doppler effect and is non-invasive. During operation, the sensing head transmits a continuous low power, microwave beam towards the flowing product. Some of these microwaves are reflected back to the sensing head and are then analysed as to whether the product particles are moving or stationary objects.
The highly penetrating microwave beam passes through any build-up on the transmitter face and will even detect through pipes of non-conducting materials such as plastic and ceramics.
The switch is best suited for the detection of materials such as dry solids, granules, flakes and powders.
Typical applications include grain, flour, cement, ore, stone coal and animal feed. Flow can be detected in pipelines, chutes, transfer bins or free air.
This technology can be combined with the blocked chute detector to provide a flow or no-flow output and blocked or clear chute indication for maximum plant protection.
* View the demo animation below:
Reduces plant wastage
Improves plant efficiency
Flow detection from outside the chute/ pipe
Simple to install and commission
Can detect through plastic ‘windows’
No maintenance required