Flow Switch Operation

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

Flow switch operation.

Flow switch working principle. Dwyer models provide a complete system for leak detection and feature a selectable no or nc operation. Thermal flow switches are sensors with an electrical contact output at a specific flow rate. Always turn the spa off before working on it.

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. 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. How to troubleshoot flow switch operation by donna armstrong hunker may earn compensation through affiliate links in this story. Flow switches are mechanical devices used in controlling the flow of air steam or liquid.

Applications include chillers hot water heaters and liquid transfer systems.