Vortex street flowmeter indicates a wide fluctuations of reason have?

Vortex flowmeter is mainly used in industrial pipeline gas, liquid and steam flow measurement of the medium. In the process of using the flowmeter has some problems easily, below we summarizes the reasons and solutions for you. 1, wide fluctuations indicate selection problems and the reason for the parameters of the positive definite direction. 2, indicating no selection problems. Some vortex sensor on diameter selection or due to changes in process conditions after the design selection, make choice - a specification, the calibre of the actual selection should choose as small as possible, in order to improve the accuracy of measurement. 3, not zero because of bad field calibration or change due to the adjustment of the actual situation of then. Or the operation after a period of time after the adjustment of changes again, indicating problem. 4, according to traffic do not tally with the actual flow, great error. May be the instrument parameter setting is not correct; Temperature and pressure instrument measurement error is too large; May be the flow below or above the normal flow range; May be installed is not in conformity with the requirements, such as installing a different heart, pipeline with obstacles, lack of straight pipe, and so on and so forth. 5, no electricity the pipe flow, but has signal output inspection instrument grounding, whether bad earth introduce interference; Check whether the pipe has strong mechanical vibration; Check whether there is a strong electromagnetic interference environment, such as high power electrical or high voltage equipment such as frequency converter; Check whether the sensitivity is high, adjust two potentiometer counterclockwise until no output. Above is the analysis of the causes of common failures and solutions vortex flowmeter, hope to be of help.
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