Three main reasons for the split type damage of electromagnetic flow meter

Abstract: The three main reasons for the split type damage of electromagnetic flowmeters are provided by excellent flowmeter and flowmeter manufacturers and quotation manufacturers. The three main reasons for the split type damage of the electromagnetic flowmeter are the failures that occur during the operation period after initial debugging and normal operation for a period of time. 1. Circumstances. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following are the details of the three main reasons for the split type damage of electromagnetic flowmeters. The three main reasons for the split type damage of the electromagnetic flowmeter are the failures that occur during the operation period after initial debugging and normal operation for a period of time. The common causes of failure are: the adhesion layer on the inner wall of the flow sensor, lightning strikes, and changes in environmental conditions. 1. Changes in environmental conditions The main reason is the same as in the previous section on the disturbance during the debugging period, except that the nuisance source does not appear during the debugging period and participates again during the running period. For example, an electromagnetic flowmeter with no ideal grounding protection. During the commissioning period, because there is no factory disturbance source, the instrument operates normally, but during the operation period, a new disturbance source (such as a pipeline near the measurement point or pipeline welding is performed far away) disturbance occurs. The instrument is running normally, but the output signal is greatly turbulent. 2. Inner wall adhesion layer Since the electromagnetic flowmeter has more opportunities to measure the suspended solid phase or dirt than other flow meters, the probability of interference caused by the inner wall adhesion layer is relatively high. If the conductivity of the adhesion layer is similar to that of the liquid, the meter can still output signals normally, but the smooth area is changed, forming a hidden obstacle to measurement deviation; , the electrode surface is insulated and the measurement circuit is disconnected. The latter two symptoms can make the instrument unable to work. 3. Lightning strike Lightning strikes feel instantaneous high voltage and surge current in the line, and entering the meter will destroy the meter. There are 3 ways to introduce the lightning damage meter: power line, flow signal line and excitation line between sensors and converters. However, from the analysis of the destruction of parts and components from the lightning disturbance, most of the high voltage and inrush current caused by the disturbance are introduced from the power line of the control room, and the other two methods are less. It was also learned from the scene of the lightning accident that not only the electromagnetic flowmeter was obstructed, but also other instruments in the control room had lightning accidents at the same time. Therefore, the use unit should understand the importance of setting up lightning protection measures for the instrument power line in the control room. At present, Ruo Yu in the planning unit team knows and explores to solve this problem. The company's main business: magnetic flip-column liquid level gauge magnetic flip-plate liquid level gauge The above is the entire content of this article, you are welcome to inquire about the flowmeter selection and quotation of our factory. 'Three main reasons for split type damage of electromagnetic flow meter'

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