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Intelligent electromagnetic flowmeter based on the on-line calibration of the scale

Abstract: the intelligent electromagnetic flowmeter scale online calibration based on information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. A, electromagnetic flow meter calibration online based on the intelligent electromagnetic flowmeter is made by using Faraday's law of electromagnetic induction of a conductive liquid volume flow measurement instrument. A complete set of meter consists of two parts, sensor and converter, its measurement principle is shown in figure 1. More flow meter manufacturers choose model price quote you are welcome to inquire, below is the intelligent electromagnetic flowmeter according to the article details the on-line calibration of the scale. A, electromagnetic flow meter calibration online based on the intelligent electromagnetic flowmeter is made by using Faraday's law of electromagnetic induction of a conductive liquid volume flow measurement instrument. A complete set of meter consists of two parts, sensor and converter, its measurement principle is shown in figure 1, electrical conductivity of liquid pipe flow in perpendicular to the magnetic field of magnetic measurement, produced in the vertical direction of current flow direction and flow rate is proportional to the induced electromotive force, its value is as follows: E = kBLe ( 1) Type: E— Induction electromotive force, namely, traffic signal; k— Coefficient; B— Magnetic induction intensity; Le— Measure the distance between the electrode; — The average flow velocity. The measuring tube, through the cross-sectional liquid volume flow is: ( 2) Type: D— Sounding pipe diameter. Fantasy ( 1) 、( 2) Merge: ( 3) Type: K— Calibration coefficient, K is usually in lab to get wet calibration. From the type, 3) , a linear relationship with qv and E. Can get qv only determination of B, with a linear relationship with the E, on-line calibration of electromagnetic flowmeter can be realized. Specific calibration, by measuring the basic parameters of the electromagnetic flowmeter, electromagnetic flowmeter accuracy measurement is achieved. Second, the intelligent electromagnetic flowmeter online calibration method in the electromagnetic flow meter factory, its accuracy has been is line calibration. But in the use of the site, due to the environmental conditions, fluid characteristics, as well as the instrument itself such as components damage reason lead to the failure of the instrument operation, etc. , to use for a long time after the flow meter is necessary a routine calibration. Due to electromagnetic flowmeter sensor installed on the pipeline, it is difficult to remove the sent to the calibration line for inspection, and at present within the scope of the flow measurement, national and local site conditions to large diameter flowmeter has yet to file online inspection procedures and other regulations. In order to guarantee the gpi electromagnetic flowmeter after troubleshooting and the accuracy and reliability of after use for a long time, and shall not affect the daily production, are listed below the following online calibration method: 1, safety of electromagnetic flowmeter excitation coil insulation test, should be more than 20 m & Omega; 。 2, the excitation coil electromagnetic flowmeter copper resistance test, should be the same as the original factory value ( The environment temperature phase at the same time) 。 3, resistance to electromagnetic flowmeter sensor electrodes to test, if the resistance value between the 2 a 20 kf, accompanied by charge and discharge phenomenon, the resistance of the two electrodes, is that good. 4, to the test of electromagnetic flow meter transducer excitation current, the output was observed and the converter current value, the error is not more than 0. 25mA 。 5, the electromagnetic flowmeter converter analog output and frequency output test, observe the change of the linear, and calculate its zui linear error, should be less than 0. 5%. 6, the DN 1200 mm above the electromagnetic flowmeter, should test driver stage NB, current error is not more than 12 ma. Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.

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First, in sparking the initial idea for a company based on manufacturing technology; and second, in designing a solution that could meet a clear market need for solving issues related to mass flow meter fork density meter manufacturer.

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