About this item

The water flow sensor is mainly composed of a stainless steel valve body, a water flow rotor assembly, a steady flow assembly and a Hall element. 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 linearly with the flow rate. The Hall sensor outputs the corresponding pulse signal and feeds it back to the controller. The controller judges the size of the water flow and regulates it.

Features:

1.Brass Body, PA66 turbine, SUS304 stainless steel shaft(axle).

3.Imported Hall IC from Japan, stable and reliable;

4.Flow Range: 1-25L/min;

5.Working voltage: 5-24V(regular version)

6.Rated voltage: DC5V for three different versions

7.Output voltage: Rated: DC5V for regular version: output high level 4.5V and above; low level 0.5V and below

8.Pulse output duty cycle: 50+-10%

9.Insulation resistance: 100M Ohm and above;

10.Tightness: Seal up all the holes, and inflate with 0.8MPa water, after 1 minute, no leakage and deformation;

11.-20-60 centigrade;

12.Max Pressure: 1.7Mpa

13.Electrical Strength: AC500V 50Hz.

14.Wire length: regular 35cm, other length can be tailor made against request.

15.Wire end connection: SM2.54 Plug 

Application:

Water heater, washing machine, boiler, electromagnetic water heater, water dispenser, water purifier, R.O. machine, U.F. machine, coffee machine, water machine, water machine control, water control machine, beer machine, beauty equipment, shower equipment, electrolytic water machine, energy engineering, heat pump,IC meter, steam equipment, irrigation equipment, water system, campus card self-service sale (sell) water machine, washing machine, automatic washing equipment, water treatment equipment, water dispensing equipment, cooling system, circulation system, intelligent toilet (toilet), bidet, mechanical equipment, heating equipment,  Pharmaceutical (agents) equipment etc.

Calculation Formula: 

F(Hz)= 18 flow rate(Q)(l/min)

*1L=1080Hz,

*Error:±5% for both formula;

What is the formula and how to use the formula?

Note:
1. When magnetic material is close with the sensor, its characteristics may vary.
2. In order to avoid particle debris, the sensor must be installed after a filter.
3. The flow sensor can be installed in any direction. IT has to avoid strong vibrating and shaking environment, so as not to affect the accuracy.