Cảm Biến Dòng Chảy Cà Phê 0.3-6l / Min Yf-S401

Introduction:
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 flow rate of the inlet water. When the water passes through the water flow rotor assembly,
The magnetic rotor rotates and the speed changes with the flow rate, the Hall sensor outputs corresponding pulses
The signal is fed back to the controller, and the controller judges the size of the water flow and regulates it.

Precautions for use:
Severe impact and chemical erosion are strictly prohibited.
Throwing or collision is strictly prohibited.
The temperature of the medium should not exceed 120 degrees
Output waveform: square wave

Lead wire method:
1 Red IN to positive
2 Yellow OUT signal output line
3 Black GND connect to negative pole
4 Green R Temperature sensor (3950K 50K or 3950K please choose according to your own requirements)

Frequency: F=5.5*Q(L/Min)-3 Error: ±2% Voltage: 3.5-24VDC, current cannot exceed 10mA, output 330 pulses after flowing one liter of water
That is, frequency calculation = constant 5.5* unit flow rate (L/min) * time (second) -3

Features:
1. This product is light and handy in appearance, small in size and easy to install.
2. The impeller is inlaid with a stainless steel shaft, which penetrates up and down to disperse the stress points and is always wear-resistant.
3. The sealing ring is made of nitrile rubber imported from Japan, and the upper and lower force structure never leaks.
4. The Hall element is imported and encapsulated with potting glue to prevent water ingress and never age.
5. All raw materials are in compliance with ROHS testing standards

Scope of application:
Suitable for water heaters, credit card machines, automatic water vending machines, and other flow measurement equipment!

Minimum rated working voltage: DC3.5 5V-12V
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 frosting state)
Allowable pressure: below 1.75Mpa water pressure
Storage temperature: -25～+80℃
Storage humidity: 25%～