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The water flow sensor is mainly composed of a plastic valve body, a water flow rotor assembly and a Hall sensor.
It is installed at the water inlet end of the water heater to detect the water flow. When the water passes through the water flow rotor assembly, the magnetic rotor rotates and the speed changes with the flow. The Hall sensor outputs the corresponding pulse signal, which is fed back to the controller. The device judges the size of the water flow and controls it.
Product Paramenters
Product Name
Water flow sensor
Rated working voltage
DC4.5 5V-24V
Maximum working current
15 mA (DC 5V)
Operating voltage range
DC 5~18 V
Load capacity
≤10 mA (DC 5V)
Operating temperature range
≤80℃
Operating humidity range
35%~90%RH (no frost)
Allowable pressure water pressure
below 1.75Mpa
Storage temperature
-25~+80℃
Storage humidity
Storage humidity 25%~95%RH