Online Verification of Electromagnetic Flow Meters and Ultrasonic Flow Meters

Abstract: The online verification information of electromagnetic flowmeter and ultrasonic flowmeter is provided by excellent flowmeter and flowmeter manufacturers. Flow meters such as electromagnetic flowmeters and ultrasonic flowmeters cannot be regularly calibrated offline in some places of use. For example, large-scale water pipes are not allowed to be out of service. In order to detect the accuracy of the flow measurement system under the conditions of on-site use, online calibration must be implemented on site. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following is the online verification article details of electromagnetic flowmeters and ultrasonic flowmeters. Flow meters such as electromagnetic flowmeters and ultrasonic flowmeters cannot be regularly calibrated offline in some places of use. For example, large-scale water pipes are not allowed to be out of service. Three different levels of operation such as pairing or verification. A brief review of these on-line calibrations and on-line comparisons currently practiced is presented, with emphasis on the methods used by electromagnetic and ultrasonic flowmeters to evaluate and verify the operation of flow meters. The flow values ​​of electromagnetic flowmeters and ultrasonic flowmeters are usually calibrated in real flow on the flow standard device in the flow laboratory of the manufacturer, and the flow values ​​are transmitted. However, when the on-site flow and use conditions deviate from the reference working conditions at the time of calibration, in order to detect the on-site conditions, that is, the measurement accuracy of the measurement system (including flow meters, front and rear connecting pipes, medium flow status, etc.), or custody transfer measurement requirements Short interval period verification, and places where offline calibration of deactivated pipelines is not allowed, online calibration is required. The online calibration of the flow meter is to temporarily connect the fluid flowing through the meter to be calibrated to a fixed (or mobile) flow standard device or standard measuring instrument under the conditions of on-site measurement. In addition to the highest level of online calibration, there are two levels of online comparison and online verification. The working method of online comparison of flow meters and“calibration”similar, but not in some ways“calibration”regulations, the requirements are relatively low, such as only compared with reference gauges of a similar accuracy class. On-line verification of flow meter is to use indirect inspection (inspection) method to evaluate or verify that the flow measurement value of the meter still maintains or exceeds the range of the original calibration performance, and provides a basis for whether it can still be used or needs further inspection. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'Online Verification of Electromagnetic Flow Meters and Ultrasonic Flow Meters'

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