1) Working Voltage: 5 to 18V DC (min tested working voltage 4.5V).
2) Max current draw: 15mA @ 5V.
3) Working Flow Rate: 1 to 30 Liters/Minute.
4) Maximum water pressure: 2.0 MPa.
5) Flow rate pulse characteristics: Frequency (Hz) = 7.5 * Flow rate (L/min).
Description:
This sensor sits in line with your water line and contains a pinwheel sensor to measure how much liquid has moved through it. There's an integrated magnetic Hall Effect sensor that outputs an electrical pulse with every revolution. The Hall Effect sensor is sealed from the water pipe and allows the sensor to stay safe and dry.
The sensor comes with three wires: red (5-24VDC power), black (ground) and yellow (Hall Effect pulse output). By counting the pulses from the output of the sensor, you can easily calculate water flow. Each pulse is approximately 2.25 milliliters. Note this isn't a precision sensor, and the pulse rate does vary a bit depending on the flow rate, fluid pressure and sensor orientation. It will need careful calibration if better than 10% precision is required. However, it’s great for basic measurement tasks!
Pulse frequency (Hz) / 7.5 = flow rate in L/min.
Features:
Model: YF-S201
Sensor Type: Hall effect
Working Voltage: 5 to 18V DC (min tested working voltage 4.5V)
Max current draw: 15mA @ 5V
Output Type: 5V TTL
Working Flow Rate: 1 to 30 Liters/Minute
Working Temperature range: -25 to +80℃
Working Humidity Range: 35%-80% RH
Accuracy: ±10%
Maximum water pressure: 2.0 MPa
Output duty cycle: 50% +-10%
Output rise time: 0.04us
Output fall time: 0.18us
Flow rate pulse characteristics: Frequency (Hz) = 7.5 * Flow rate (L/min)
Pulses per Liter: 450
Durability: minimum 300,000 cycles
Cable length: 15cm
1/2" nominal pipe connections, 0.78" outer diameter, 1/2" of thread
Size: 2.5" x 1.4" x 1.4"
Connection Details:
Red wire : +5V
Black wire : GND
Yellow wire : PWM output.
Package Include:
1 X Water Flow Sensor YF-S201 1/2 Inch.
