Don’t Get In A Flap About Flap Switches

Flap switches are often unreliable, wear out and break down, with consequences that can disrupt production and cost money. Pulsar’s (UK) PulsarGuard 2010 is a robust, non-invasive sensor with no moving parts that mounts easily to the outside of the process pipework and gives either a simple flow/no flow signal or a flow rate indication for solids, granules and powders. Maintenance-free and non-wearing, PulsarGuard 2010 is a sophisticated device that harnesses Pulsar’s world-leading acoustic engineering expertise.

The PulsarGuard 2010 offers reliable acoustic impact detection and, apart from flap switch replacement, can detect filter bag bursts, warn of impending blockages or pump cavitation, and indicate bridging or ratholing in silos. It can also be used to check on correct valve operation or warn of bearing failure.

Completely non-invasive, PulsarGuard 2010 simply bolts to the exterior of the process, and Pulsar’s highly sophisticated acoustic algorithm separates the sound of process material transmitted through the structure from other process noise and vibration. A 0-10V output signal proportional to flow can be fed directly to the DCS or converted to alarm or control relay function through an interface. The standard sensor is part of a range that includes high temperature and hazardous area versions.