Description
This type of flow sensor is used to measure liquid flow within a pipe and is ideally suited for monitoring water consumption in irrigation control systems, flow in cooling systems, and other areas where volume or the presence of water flow are monitored. Each side of the sensor has a G3/4″ connection and the sensor is connected by way of a 3 pin connector.
Inside the housing, a small pinwheel with an attached magnet is spun by passing water; as the magnet makes each revolution, a hall effect sensor inside the housing outputs a pulse on the yellow wire. Each pulse output represents approximately 3mL of fluid. The sensor is best suited to flow rates between 1 and 60 liters per minute – flow rates below one liter per minute tend not to register accurately.
For flow rates less than 6 liters per minute, we recommend looking at the YF-S401 with a higher resolution / lower flow rate.