SFTS220 Electronic water flow sensor based on the thermal principle, the sealed probe contains two resistors, one of which is heated as the detection resistance, the other is not heated as the reference resistance, when the medium flows, the heat on the heating resistance is taken away, the resistance value is changed, and the difference between the two resistors is used as the basis for judging the flow rate. No moving parts, maintenance-free, easy to install, one model is suitable for a variety of pipe diameter requirements, the switching quantity is continuously adjustable, extremely low pressure loss, compact structure, color crystal display flow trend and switching state, integrated temperature measurement function, support temperature alarm and remote measurement.
Principle characteristics
Low flow rate alarm, can be used for circulating water, cutting fluid cut-off detection, and pump idling protection.
Product application
– New digital design
– Replace traditional thermal flow switches
– Integrated temperature integration function
– Save installation space
– Color crystal digital visual display window
