Reasons that can affect the accuracy of gas measurement

Thread Content

　In gas flow measurement, there are many factors that affect the accuracy of the measurement results. These can be summarized as follows: ① The measurement accuracy of the flow meter itself; ② The accuracy of the associated data acquisition and display systems; ③ Environmental factors at the site of flow measurement (including the density of the gas, temperature, pressures at the inlet and outlet of the flow meter, fluctuations in the gas supply, and the airtightness of the piping system); ④ Whether the flow meter is installed in accordance with the required specifications. The practice of removing the flow meter separately and sending it to the laboratory for calibration can only ensure the accuracy of the flow meter itself; it cannot guarantee that the flow measurement results will be accurate and reliable in actual use. Therefore, on-site calibration of gas flow is gradually becoming an inevitable trend.