What are the factors that cause the error of the electromagnetic flow meter

Abstract: The information on the factors that cause the error of the electromagnetic flowmeter is provided by the excellent flowmeter and flowmeter manufacturers. What are the reasons for the error of the electromagnetic flowmeter? (1) The liquid in the tube is not full. When there is a small amount of gas in the tube, the measurement result will deviate from the actual value, causing a small error; when there is a lot of gas, the measurement value will be unstable. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following are the details of the articles that cause the error of the electromagnetic flowmeter meter. What are the reasons for the error of the electromagnetic flowmeter? (1) The liquid in the tube is not full. When there is a small amount of gas in the tube, the measurement result will deviate from the actual value, causing a small error; when there is a lot of gas, the measurement value will be unstable and the output will shake, and the measurement value cannot be used as the correct result. (2) The liquid to be tested contains solid components. It will cause the electrode surface to be stained, covering the electrode or lining, resulting in a decrease in the flow area and a gradual decrease in the flow value. If there is conductive material in the deposited layer, the flow signal is likely to be short-circuited, causing the instrument to malfunction. (3) Improper selection of electrodes or grounding rings. The electrode is in contact with the measured fluid medium, and the electrochemical reaction of the measured medium will generate a polarization voltage. Whether the electrode can reliably detect the flow signal is very important to the performance of the flowmeter. The ground ring serves to form an electrical connection with the medium, through the ground wire and zero potential connection. When the process pipeline connected to the sensor is a plastic or a pipeline with an insulating coating, a grounding ring must be installed, otherwise the instrument will not work properly. There are many materials for electrodes and grounding rings, so pay attention when choosing them. Electromagnetic flowmeter is a widely used flow measurement instrument, which is often used in the measurement of sewage and wastewater, and is cost-effective. However, due to improper selection, installation or use, the measurement results will be inaccurate, and even the instrument will be damaged. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'What are the factors that cause the error of the electromagnetic flowmeter?'

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