When the china vortex street flowmeter from China manufacturer is in use, customers sometimes find that this product may cause some faults during use, thus affecting the use of the flowmeter. The following reasons for unstable measurement of china vortex street flowmeter from China manufacturer in use are introduced.
1. China vortex street flowmeter from China manufacturer selection. In terms of vortex street flowmeter technology, generally one caliber has one flow range. Therefore, when selecting china vortex street flowmeter from China manufacturer, it is necessary to provide accurate parameters, so that a vortex street flowmeter with appropriate caliber can be selected. If the diameter of vortex street cannot match with the pipeline, it is suggested to adopt the reducing method.
2. Flow fluctuation. Some customers have reported that the flowmeter will fluctuate during measurement. First, when installing the china vortex street flowmeter from China manufacturer, the front and rear straight pipe sections must be ensured. The stability of flow measurement can only be ensured by the straight pipe section of the first 10d and the second 5D.
3. Factor of parameter setting direction: the appearance indication is wrong due to parameter error The error of the parameters makes the accounting of the full-scale frequency of the secondary instrument wrong. The same full-scale frequency makes the indication forbidden for a long time. The practice full-scale frequency is greater than the calculated full-scale frequency makes the indication shake in a large range and cannot be read. The inconsistency of the parameters on the materials affects the parameters. Finally, the parameters are determined through de novo calibration and comparison, and this problem is solved.
4. The influence of temperature and pressure on measurement is especially important when steam is used. Steam is divided into superheated steam and saturated steam. The density of steam is different with different temperature and pressure. Therefore, it is recommended to provide temperature and pressure transmitters during measurement.
5. The impact of the accumulation on the upstream surface of vortex generator of china vortex street flowmeter from China manufacturer: if there are viscous particles in the measured fluid, they may gradually accumulate on the upstream surface of vortex generator, changing its geometry and scale, so the flow coefficient will change accordingly. Therefore, attention should be paid in the application.


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