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Title: A Calibration Facility For Static Pressure Transducers And Differential Pressure Transducers At High Base Pressure
Author: C. F. Sindt, J. F. Labrecque
Source: American Gas Association 1982
Year Published: 1982
Abstract: A facility has been developed to calibrate pressure transducers that are used in the NBS Gas Mass Flow Facility. Both static and differential pressure transducers can be calibrated. An air dead weight tester is the standard for static transducers in the range from 3.8 to 4.5 MPA. An air dead weight tester is also the standard for the differential pressure transducers in the range of 2.5 kPa to 50 kPa a cistern manometer provides the transfer for the standard to a base operating pressure of 4.1 MPa. The calibration of the air dead weight gage by NBS-Washington contributes 65 ppm to the uncertainty of the caHbration of the static pressure transducers. The calibration of the air dead weight gage adds 69 ppm to the calibration of the cistern manometer. This, plus the uncertainties in the high pressure corrections to the cistern manometer and our measurement of the mercury temperature, contributes 189 ppm to the uncertainty of the differential pressure transducer calibrations at 50 kPa.

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