Flow Switches Offer High Repeatability

Omega's new, low-cost ($100) FSW300 series of flow switches has an adjustable switch point, low pressure drop, instant response, and high repeatability, according to the company.  This CE-compliant device is comprised of a paddle system with a permanent magnet attached, above that magnet is a reed contact, located outside the flow of fluid. A second magnet with opposing poles creates the force necessary to reset the switch back to the no-flow position.