Ensuring Accuracy with Sartorius's Dynamic Measurement Uncertainty Function

Ensuring Accuracy with Sartorius's Dynamic Measurement Uncertainty Function

In today's fast-paced world, accuracy and precision are of paramount importance, especially in laboratory settings where even the slightest deviation can lead to incorrect results. One solution to this challenge is the dynamic measurement uncertainty function offered by Sartorius. This innovative feature, based on the EURAMET Calibration Guide No. 18 (EURAMET cg-18), ensures that users are always aware of the uncertainty associated with their weighing results. In this blog post, we'll explore the significance of this function and how it benefits users in various industries.

Understanding Measurement Uncertainty:

High-efficiency laboratory balances offer exceptional regulatory and practical functionality. However, these sophisticated devices can be sensitive to various factors such as the installation location and the expertise of the user. Even with proper leveling, calibration, and adjustment, a question remains: How significant is the uncertainty of the weight value displayed?

Sartorius's dynamic measurement uncertainty function addresses this issue by displaying the uncertainty for every quantified value throughout the entire weighing range. This feature is particularly beneficial for customers working in regulated environments where documentation of weighing values is crucial.

How the Dynamic Measurement Uncertainty Function Works:

The dynamic measurement uncertainty function enables users to enter the parameters of the straight-line equation, as depicted in the calibration certificate based on EURAMET cg-18, directly into the device. This means the software function continuously provides the uncertainty for each measured value in accordance with the calibration certificate's appendix.

Sartorius Service can easily set the parameters by considering various factors contributing to uncertainty. The calculation for measuring the uncertainty of weighing results includes contributions from aspects such as repeatability, rounding at zero and under load, deviation from eccentric loading, and potential changes to the balance. Additionally, the function accounts for buoyancy effects of temperature variation at the place of use and determines the indication error and its interpolation during calibration.

The Role of EURAMET:

The European Association of National Metrology Institutes (EURAMET) is a joint alliance of national metrological organizations from member states of the European Union and the European Free Trade Association. EURAMET coordinates metrological activities at the European level and liaises with the International Organization of Legal Metrology (OIML) and the International Bureau of Weights and Measures (BIPM).

In Conclusion:

Sartorius's dynamic measurement uncertainty function, based on the EURAMET cg-18, offers users a powerful tool to ensure the accuracy and reliability of their weighing results. By continuously displaying the uncertainty associated with each measurement, this innovative feature helps maintain the integrity of data and fosters confidence in the results obtained. Whether you're working in a regulated environment or simply seeking the highest level of accuracy, Sartorius's dynamic measurement uncertainty function is a valuable asset for your laboratory operations.

May 2nd 2023 Don Markland

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