Analysis of Measurement Error of Intelligent Electromagnetic Flow Meter

Abstract: The measurement error analysis information of intelligent electromagnetic flowmeters is provided by excellent flowmeter and flowmeter manufacturers and quotation manufacturers. Abstract: Everything is inseparable from it. As long as you understand the working principle of intelligent electromagnetic flowmeter and some essential factors of installation, selection, and maintenance, you can quickly analyze the cause of the error and deal with it when the error occurs in the flowmeter. 1, when the flow. More flowmeter manufacturers select models and price quotations. You are welcome to inquire. The following is the details of the article on the measurement error analysis of intelligent electromagnetic flowmeters. As long as you understand the working principle of the intelligent electromagnetic flowmeter and some essential factors of installation, selection, and maintenance, you can quickly analyze the cause of the error and deal with it when there is an error in the flowmeter. 1. When the fluid is a solid-liquid two-phase flow, that is, it contains solids such as particles or fibers, the possible failures include ①. The measurement is the noise generated by the fluid; ②. ③. The sediment or insulation of the fluid in the pipeline covers the lining of the instrument; ④. The lining of the instrument is worn, which reduces the cross-sectional area of ​​fluid circulation. 2. When the fluid is not full or the sensor is installed incorrectly, it may cause Failure ①. When the fluid contains a small amount of gas in the pipeline and is distributed in a stratified flow or wavy flow, it will cause the superposition of instrument errors, that is, the measured value does not match the actual value; ②. When the fluid is a bubble flow or a plug flow, except for It will cause the measured value of the meter to be inconsistent with the actual value, and the measured value will sway because the bubbles pass through the electrode and cover the surface of the electrode. The state of the tube increases, which will cause the measurement value of the instrument to sway; 3. Improper selection of electrode materials for intelligent electromagnetic flowmeters may cause failures 1. When the electrode materials of electromagnetic flowmeters are improperly selected, they will be corroded after working for a period of time. , the following situations will also occur: 2. The electrode surface should chemically react to produce a passivation film; 3. The electrochemical reaction and polarization of the electrode generate a potential; 4. The aerosol phenomenon appears on the electrode surface; the above chemical phenomena are all It will affect the accuracy of the intelligent electromagnetic flowmeter. For the determination of the corrosion of the electrode, please read 'How to Determine the Corrosion of the Intelligent Electromagnetic Flowmeter' 4. Data deviation caused by low fluid conductivity influence, there is a specified value that must≥5μ s/cm, the fluids that appear more are generally low-level distilled water or deionized water. These electrical conductivity are generally close to the lower limit of the specified value. The result is that the measured value is swaying and unstable. The selection stage of the intelligent electromagnetic flowmeter has been reasonably solved. For the conductivity of the fluid, you can first refer to the relevant manuals to know. After selecting a reasonable flowmeter and measuring, the above is the whole content of this article. You are welcome to inquire our manufacturer. Flowmeter selection, quotation, etc. 'Analysis of Measurement Error of Intelligent Electromagnetic Flow Meter'

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