YF-S401 Water Flow Sensor Flowmeter 0.3-6L/min 3.5mm 5VDC White

1/8 inch YF-S401 Water Flow Sensor Flowmeter 0.3-6L/min 3.5mm 5VDC White consists of a plastic valve body, a water rotor, and a hall effect sensor – when water flows through, the internal rotator will change its speed with different rate of flow and hall effect sensor outputs the corresponding pulse signal. Use with laser cutters or CNC to measure if and how much water is flowing through laser tube or CNC spindle for cooling.

The Water Flow sensor measures the rate of a liquid flowing through it. The YF-S401 water flow sensor consists of a plastic valve body, flow rotor and hall effect sensor. It is usually used at the inlet end to detect the amount of flow. When liquid flows through the sensor, a magnetic rotor will rotate and the rate of rotation will vary with the rate of flow. The hall effect sensor will then output a pulse width signal. Connect it to a microcontroller and you can monitor multiple devices such as your coffee maker, sprinkler or anything else, and control the water flow rate to suit your needs!

Features:

• Analog Sensor
• Accuracy Up-to 5%
• Water Proof Sensor
• Standard 1/8″ Nozzle Size
• Max. Supported Water Flow: 6L/Min

SPECIFICATION

• Inner Diameter: 4 mm
• Outside diameter: 7 mm
• Proof Water Pressure: <0.8 MPa
• Water Flow Range: 0.3-6 L/min
• Voltage Range: 5~12 V
• Operating Current: 15 mA (DC 5V)
• Insulation Resistance: >100 MΩ
• Accuracy: ±5% (0.3-3L/min)
• The Output Pulse High Level: >4.5 VDC (DC input voltage 5 V)
• The Output Pulse Low Level: <0.5 VDC (DC input voltage 5 V)
• Output Pulse Duty Ratio: 50% ± 10%
• Water-flow Formula: 1L = 5880 square waves
• Working Humidity Range: 35% ~ 90% RH (no frost)
• Dimension: 58*35*26 mm/2.28*1.37*1.02 inches
• Weight: 30g

Connections

• Red: Power In
• Black: Ground
• Yellow: Signal Output

Note:

• A 6 mm hose is recommended
• Avoid unit contact with corrosive chemicals
• The unit must be installed vertically, tilted no more than 5 degrees
• Liquid temperature should be less than 120 C to avoid damage to unit