BARTON ® Model 7400 Precision Turbine Flow Meters are built in a broad variety of automotive, business, pipeline and aerospace applications for the gas sector. Since the pickup coil performance is digital, the Model 7400 meters is a perfect fit for electronic control instruments — no analog to digital conversion is required. The rotor reaction comes in milliseconds, offering precise metering for quickly shifting flow patterns in applications.
When the gas travels through the diffuser portion, it is pushed through a turbine rotor with several blades. The speed of the rotor is proportional to the volumetric flux rate. A reticence style pickup coil (mounted on the meter) senses the movement of each blade tip as the rotor turns and in-turn produces a sine wave output with a frequency that is directly proportional to the flow rate. For backup or flow path sensing additional coils can be attached. The pickup coil can