Measuring Uncertainty

A New Software Function for Dynamic Display of the Uncertainty of Measurement in Cubis®️ II Balances

The QApp “Measuring Uncertainty” is a new software function available in the QApp Pharma Package of Sartorius’s Cubis®️ II premium balances. This QApp function provides a dynamic display of the uncertainty of measurement, based on the EURAMET Calibration Guide No. 18 “Guidelines on the Calibration of Non-Automatic Weighing Instruments”1-3 (denoted as “EURAMET cg-18” in the following).

The attachment to Sartorius’s calibration certificate according to EURAMET cg-18 also shows a determination of weighing uncertainty when the balance is in use. This global expanded software function “measuring uncertainty” is given in the form of a straight-line equation, containing both a constant contribution and a contribution proportional to the reading. In most cases, this represents a sufficiently good estimation of the uncertainty of weighing results of the balance in use.

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