How Continuous Testing Further Reduces Gas USM Uncertainty

摘要

Today the importance of having accurate measurement has never been more important. The extensive use of USMs during the past several years has helped many companies continue to reduce their Lost and Unaccounted For (LUAF) gas. As technology continues to improve in all aspects of measurement, the highest uncertainty of any gas measurement device continues to be the primary element. Transmitters are regularly calibrated to accuracies of less than 0.1% where the primary element typically has an uncertainty of at least 0.2% due to the uncertainty of the flow calibration laboratory.