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. This one is suitable to detect flow in water dispenser or coffee machine.

• 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

Features

• Operating voltage: 4.5 – 12V
• Operating Current : <15mA
• Water resistant : 0.35MPa
• Operating flow rate : 1 – 5L/min
• Operating temperature: ?80?C
• Liquid temperature: ?120?C
• Operating humidity: 35 – 90% RH
• Water pressure limit : ? 1.75MPa
• Internal diameter : 1.2mm
• Error : ?2L/min
• Insulation resistance : >100M?
• Output pulse duty cycle : 50?10%
• Flow pulse characteristics : (98 * Q) ? 2% Q = L / MIN

Wiring

Files & Documentation

• Tutorial with code – DFRobot
• Working principle of water wheel based flow rate sensor – theoryCIRCUIT