Flow Switch Operation

A flow switch operates by conveying a trip motion relay reed switch paddle to another machine within the system usually a pump.

Flow switch operation.

In the presence of fluid flow controlled movement of the piston actuates an external hermetically sealed reed switch this switch can be used to actuate audible or visual alarms as well as relays or other controls. The trip signal will indicate to the pump to turn on or turn off. How to troubleshoot flow switch operation by donna armstrong hunker may earn compensation through affiliate links in this story. Always turn the spa off before working on it.

Thermal flow switches are sensors with an electrical contact output at a specific flow rate. Applications include chillers hot water heaters and liquid transfer systems. Flow switch working principle. Learn more about the technology and operating principles behind gems sensors and controls broad portfolio of sensing products by accessing our operating principles for level pressure flow conductivity relays and barriers and ultrasonic products.

The electrical current in a hot tub or spa can cause injury or electrocution.