Foam face ultrasonic or radar sensors with an added aiming kit can help get the accurate solid level measurement you are looking for. The non-contacting nature of the sensors means that the need for maintenance and the worry of wear and tear on the product is elinimated. In addition, the downtime needed for installation is non-existent as the sensor doesn't come into contact with the measuring substance.
State of the art acoustic technology helps to monitor flow in closed pipes, again, non-contacting and simply strapped to the outside of a pipe so that downtime for installation is non-existent. This helps to aid plant operators detect clogged or blocked chutes.
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