Static Calibration
A Static Calibration of a pressure transducer is usually accomplish either by direct comparison against any of the pressure reference instrument discussed or against the output from a certified laboratory standard transducer. For the low- pressure range, the McLeod gauge or the appropriate manometer instruments along with the laboratory barometer serve as convenient working standards. The approach is to pressurize a chamber and expose both the reference instrument ,which serves as the standards, and the candidate transducer to the same commonly used pressure reference standards