Gravity Flow Sensor 1/2 Inch

The Gravity water flow sensor from DFRobot measures the speed of a liquid flowing through it. The water flow sensor YF-S201 consists of a plastic valve body, flow rotor, and hall effect sensor. It is usually used at the inlet to capture the flow rate. When liquid flows through the sensor, a magnetic rotor spins and its rotation speed changes with the flow rate. The hall effect sensor then emits a pulse-width signal. Connect the sensor to a microcontroller and you can monitor and regulate the water flow of several devices like a coffee machine, sprinkler or a laser's water cooling according to your needs!

Information:

• Avoid contact of the sensor with corrosive chemicals
• The sensor must be installed vertically, not more than 5 degrees tilted.
• The temperature of the liquid should be below 100°C to avoid damage to the sensor.

Documentation:

• DFRobot Wiki

Technical Details:

• Operating Voltage: 3.5 to 12V DC
• Inner diameter: 11mm
• Outer diameter: 20mm
• Water pressure resistance: <1.75 MPa
• Water flow range: 1-30 L/min
• Operating current: 15mA (DC 5V)
• Insulation resistance: >100 MΩ
• Accuracy: +-5% (2~30L/min)
• Output pulse high level: >4.7VDC (DC input voltage 5V)
• Output pulse low level: <0.5VDC (DC input voltage 5V)
• Output pulse ratio: 50% +-10%
• Water flow formula: 1L = 450 square waves
• Environment: 25% ~ 95% RH (no frost)
• Temperature range: 1°C to 100°C
• Dimensions: 62 x 36 x 35mm
• Weight: 50g

Scope of Delivery:

• 1x Gravity Flow Sensor 1/2 Inch
• 1x Gravity Connecting Cable Digital with Connector 30cm