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1. The impact of temperature on measurements: Temperature affects the medium being measured by ordinary flowmeters. Changes in temperature influence the density and viscosity of the medium, all of which can lead to inaccurate measurement results and errors. To eliminate this effect, the K coefficient is generally adjusted. Currently, the flowmeters produced by some manufacturers apply fixed-temperature correction and real-time temperature correction in software to account for the impact of temperature. 2. The impact of a pipe inner diameter that does not match the flow meter’s inner diameter. 3. Issues related to selection: In practice, the smallest possible diameter should be chosen in order to improve measurement accuracy. For example, if a vortex flow meter pipeline is designed to serve several devices, and some of those devices are not used at times, the actual flow rate decreases. This results in the originally selected diameter being too large, which in turn raises the lower limit of the flow rate that can be measured. It becomes difficult to obtain accurate readings when the flow rate is low; however, the meter still functions properly at higher flow rates, as redesigning it can be very challenging. Changes in process conditions are usually temporary. The indication accuracy can be improved by adjusting the parameters. 4. Effect of accumulation on the upstream surface of the vortex generator in vortex flow meters: If viscous particles are present in the fluid being measured, they may gradually accumulate on the upstream surface of the vortex generator, altering its geometric shape and size; as a result, the flow coefficient also changes. Therefore, it is necessary to clean this area regularly during use. 5. Installation issues: The main installation-related issue is the length of the straight pipe section in front of the vortex flowmeter sensor; if this length is insufficient, it affects the measurement accuracy. 6. Reasons for the parameter tuning direction: Incorrect product parameters lead to erroneous instrument readings. Incorrect parameters lead to errors in the calculation of the full-scale frequency of the secondary instrument. A small difference in the full-scale frequencies results in inaccurate readings over time, while an actual full-scale frequency that is much higher than the calculated value causes large fluctuations in the readings, making it impossible to obtain accurate values. Inconsistencies in the parameters provided in the documentation further complicate the process of determining the correct values. Ultimately, these problems were resolved by re-calibrating the instrument and comparing the various values obtained.