Repeatability is defined as the ability of a PRECISION TURBINE FLOWMETER to reproduce its output indefinitely under constant operating conditions at any point over its specified operating range. Repeatability of a properly applicated EFR design PRECISION TURBINE FLOWMETER is near perfect within linear range. Repeatability specification for the device over the linear range is +/-.05% with reduced range repeatability up to +/-.02%. Repeatability can be achieved in many cases outside linear ranges and should be separated from accuracy in the user’s thinking. Outside the linear measurement range it is possible to use the PTF with electronic linearization for repeatable process measurement.