Operating principle of water flow sensor:
When water flows through the water flow sensor, the water drives the to rotate to generate a pulse signal, which determines the amount of water flow based on the amount of the pulse signal. Red+black -, yellow signal output, output NPN style pulse signal.
Operating voltage of water flow sensor:
Working voltage 3.5-24V, load current not exceeding 10ma
Users who are connected to a PLC or have a water pump motor in the circuit must do a good job of anti-interference and surge current isolation
Water flow sensor usage issues:
The product is a liquid that has no corrosiveness and impurities.
Measuring flow generally requires external pressure to push it. The pressure difference between natural drainage and pressure in a static water tank is not acceptable, i.e., artesian water, which may result in inaccurate accounting or lack of signal. A self priming pump or booster pump is required to provide pressure.
ModelYF-B1-S
Interface SizeDN15(G1/2)
Operating Voltage RangeDC3.5-24V
ID/ODInner diameter water inlet 15.4 water outlet 13.5mm Outer diameter 20.5mm
Thread Length9.3mm
Material ScienceStainless Steel Housing
Water Pressure Resistance<1.75MPa
Output Pulse High LevelDC 4.5V (Input Voltage DC 5V)
Output Pulse Duty Ratio50% ±10%
Insulation Resistance>100
Flow Range1~25L/min3%
Flow Oulse Characteristics(Hz)= [18*Q-3] ±5% That is, 1077 pulses per liter of water
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