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Title: Development Of A Calibration Process For Water Meters Close To Real World Conditions
Author: D. Schumann G. Wendt J. Tranckner
Source: Flomeko 2016
Year Published: 2016
Abstract: A g rowing awareness of environment as well as consumption is leading to rising and novel requirements for flow metering technology , e. g. higher flow rate ranges , smaller measurement uncertaintie s and calibration procedures more orient e d to the actual requirements of further use . This means a changeover from ideal stationary calibrat i on conditions to realistic measurements and a demand for meters which operate precisely und er real working conditions. As an example, realistic conditions, especially the profil e s of real water demand, d eviate fundamentally from the existing test procedures of water meters at well - defined, constant and reproducible reference flows as prescribed , for instance, in the existing documents in legal metrology like OIML R49 1 or ISO 406 4 2 . In the real world, a daily profile of water consumption is c haracterized by short water tapp ings, overlays of different tapping events, varying flank increases, leakage and stagnation.

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