Electromagnetic flowmeter function and use

Let’s first talk about the origin of electromagnetic flowmeter. Electromagnetic flowmeter has achieved accurate measurement of liquid flow in the industrial field as early as the early 1950s, but its domestic development speed is relatively slow. However, with the upgrading of new technologies and new technologies, electromagnetic flowmeters developed rapidly in the 1970s. The output of electromagnetic flowmeters has also gradually expanded, reflecting the new development milestone of electromagnetic flowmeters. This also shows that electromagnetic flowmeters have been fully and widely used in industrial production measurement.

Now electromagnetic flowmeters They are widely used in various fields, such as chemical industry, papermaking, water treatment, pulp and paper pulp, food industry, metallurgy, water supply and drainage, farmland irrigation, environmental protection, coal plants and other fields. The reason why electromagnetic flowmeters can be so comprehensively used is that electromagnetic flowmeters have many product advantages and can meet the needs of most working conditions on site.

Functional advantages of electromagnetic flowmeter

(1) The pressure loss of electromagnetic flowmeter is relatively small, and it can measure a wide range of maximum flow and minimum flow. The ratio is above 1:20;

(2) It has a two-way measurement system: it can measure forward and reverse flow, and it is equipped with three totalizers: forward total, reverse total and difference total. quantity; it can display forward and reverse flow, and can output a variety of methods such as current, pulse, digital communication and HART;

(3) The whole machine has no mechanical inertia and is sensitive in response. It can measure instantaneous pulse flow, and also It can measure the flow rate of some dirty media, corrosive media and suspended liquid-solid two-phase fluids;

(4) It is worth mentioning that the electromagnetic flowmeter is a volumetric flow meter. During the measurement process It is basically not affected by the temperature, viscosity, density and conductivity of the medium, so the electromagnetic flowmeter only needs to be calibrated with water before it can be used to measure the accurate flow of conductive liquid;

(5) Electromagnetic flowmeters only need to reasonably select electrode materials and lining materials to achieve corrosion resistance and wear resistance requirements.

(6) It also has measured value power-off protection and over-range alarm functions, which can set the flow direction of the fluid in the sensor, so the sensor installation will not be restricted by the direction of the fluid, achieving bidirectional measurement;

(7) Electromagnetic flowmeters are divided into three types: integrated, split and plug-in. No matter which type, they have simple structure, easy installation and use, high measurement accuracy, stable and reliable performance, and long life;

As mentioned above, electromagnetic flowmeters are not only widely used but also have many features and advantages. No wonder electromagnetic flowmeters are a common instrument used by many users to measure conductive liquids. In addition, electromagnetic flowmeters are also very common in urban pipe network applications, especially for water supply measurement. In fact, the most important purpose of urban water supply measurement is water meter trade settlement. Electromagnetic flowmeters have always been commonly used by users and can almost meet the needs of users. Various on-site working conditions requirements. It is also widely used in other scenarios such as water plants to provide data reference for water plant production management. The electromagnetic flowmeter has good performance and high stability, and the measurementThe accuracy is also good, and there are many scenarios that can be satisfied.