Six characteristics of electromagnetic flowmeter

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1. The sensor structure of the electromagnetic flowmeter is simple. There are no moving parts in the measuring tube and no throttling parts obstructing the flow of fluid.So when the flow through the flow timing does not cause any additional pressure loss, is one of the flow meters with the lowest energy consumption.

2. It can measure the flow rate of dirty medium, corrosive medium and suspended turbidity liquid-solid two-phase flow.This is because there are no obstructing flow parts inside the measuring tube, and only the lining and electrode of the measuring tube are in contact with the measured body, and the materials can be selected according to the properties of the measured body.For example, polytrifluoroethylene or polytetrafluoroethylene as a lining can be used to measure a variety of acid, alkali, salt and other corrosive media;Using wear-resistant rubber as lining, it is especially suitable for measuring liquid-solid two-phase flow of slurry and cement slurry with solid particles and various suspension liquid with fiber and pulp.

3, electromagnetic flowmeter is a volume flow measurement instrument, in the process of measurement, it is not affected by the temperature, viscosity, density of the measured medium with conductivity (in a certain range).Therefore, the electromagnetic flowmeter can be used to measure the flow rate of other conductive liquids only after being calibrated by water.

4, the output of the electromagnetic flowmeter is only proportional to the average velocity of the measured medium, and has nothing to do with the flow state (laminar flow or turbulence) under symmetrical distribution.So the range of electromagnetic flowmeter is very wide, its measuring range can be up to 100:1, some even up to 1000:1 can run the flow range.

5, electromagnetic flowmeter without mechanical inertia, responsive, can measure instantaneous pulsation flow, can also measure the positive and negative direction of the flow.

6. The diameter range of industrial electromagnetic flowmeters is very wide, ranging from a few millimeters to a few meters. Moreover, there are some real flow checking equipment with a diameter of 3m in China, which lays a foundation for the application and development of electromagnetic flowmeters.

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