The LFT range of Turbine Flowmeters meet the demands of most liquid measurement applications. They are suited to the measurement of low viscosity lubricating and non lubricating fluids, although versions for gases are available. Technique: The rotor blades sweep the full bore of the meter except for a small tip clearance. As the blade tips pass the magnetic pick up they initiate a pulse. Flow rate is determined by the frequency of the pulses and totalised.