Issues related to the instrument coefficient of swirl vortex gas flowmeters
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What is the role of the instrument coefficient in a swirl vortex gas flow meter, and what are the consequences of increasing or decreasing this coefficient?
The meter coefficient is calculated by the manufacturer using formulas based on parameters provided by the user; it is adjusted during calibration, and users cannot change it arbitrarily. The flow coefficient represents the number of vortices (pulses) per unit volume; the lower its value, the greater the flow rate, and vice versa.
It can’t be changed casually. For Yokogawa, the medium usually requires correction when the temperature exceeds 60 degrees
The flow coefficient represents the number of vortices (pulses) per unit volume; the lower its value, the greater the flow rate, and vice versa. Generally speaking, the flow coefficient depends on the specific structural design of the flow meter, its geometric dimensions, and the performance of the flow sensor. The flow coefficient of each flow meter is different; it is determined by calibration using a testing device. Therefore, to ensure accurate measurement by the flow meter, it is best not to modify it casually ； If it is felt that the flow meter is not measuring accurately, it should be recalibrated (a flow meter of the same or higher grade can be connected in series in the pipeline for comparison in order to determine whether the measurement error is within acceptable limits; however, modifying the flow coefficient is not recommended).