Principle of Operation
Fluid entering the meter first passes through the inlet flow straightener section, reducing the turbulence of the flow pattern prior to contacting the rotor's turbine blades. After achieving a more stable (laminar) flow pattern, the media passes through the turbine blades, causing the rotor wheel to rotate at a speed proportional to the velocity of the fluid.

Externally, an AC voltage (pulse) is generated in the pickup coil as each blade passes through the magnetic field created at the base of the pickoff transducer. These impluses accumulate into an output frequency, proportional to the volumetric flow through the meter.