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Title: Experience With Calibration Of The Piston Prover For Cold And Hot Water Test Equipment
Author: Miroslava Benkova Frantisek Schweitzer
Source: Flomeko 2016
Year Published: 2016
Abstract: The papers describes a piston prover with 30 litres volume, integrated into a test line with possibility to measure with cold and/or hot water, which by its innovative system of liquid deliv ery together with the sophisticated control system allows to reach higher accuracy and stability of measurement conditions. The contribution is focused on the presentation of method and results of the initial calibration of the piston prover by means of g eometrical assessment using 3D measuring equipment. Followed by a successful comparison with the results of next calibration realized automatically via the integrated software by means of volumetric method with a volume standard and an electronic measureme nt. Comparability of the traceability of the piston prover to the Czech National Standard of Length with traceability to the Czech National Standard of Mass is expressed. Further the experimental measurements of long - term stability especially in the field of low flow rates (0. 13 to 6 l/h) are described and determined. Results have shown that the developed equipment and method may successfully be spread to both higher and also very low flow rates

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