Electromagnetic water meter and ordinary water meter, as two important branches of water meter industry, carry different design concepts and application characteristics. The difference between the two is not only reflected in the working principle, measurement accuracy, installation and use, but also in the scope of application, cost and maintenance, the level of intelligence and other significant differences. Below, we will discuss the main differences between the two water meters.

　　Electromagnetic water meter

　　First of all, from the working principle, electromagnetic water meter electromagnetic induction principle, through the measurement of water flow through the measuring tube cut by the constant magnetic field generated by the magnetic susceptibility of the induced electromotive force generated by the strength of the measured medium to determine the flow rate, and then obtain the flow rate value. The ordinary water meter is a mechanical structure, through the measurement of the water flow to rotate a certain number of turns to calculate the water consumption. This mechanical measurement relies on the rotation of the impeller and the counting of the counter, which is susceptible to mechanical wear and tear, water quality and other factors, which may lead to a decline in measurement accuracy.

　　Electromagnetic water meters also excel in terms of measurement accuracy. Since its working principle is based on electromagnetic induction, it is not affected by the temperature, viscosity, density and water quality of the measured medium, so it can maintain stable measurement accuracy in various complex environments. In contrast, the measurement accuracy of ordinary water meters is susceptible to a variety of factors, such as mechanical wear and tear, changes in water quality, etc., which may lead to an increase in the measurement error.

　　Electromagnetic water meters also have advantages in terms of installation and use. Due to the non-contact measurement, there is no need to install the measuring element in the pipeline, so the installation process is relatively easy, and also reduces the maintenance cost. Ordinary water meters require professional installation and debugging, and in the process of use requires regular maintenance and repair to ensure its normal operation and measurement accuracy.

　　In terms of the scope of application, electromagnetic water meter is particularly suitable for large flow of industrial water and sewage treatment and other fields because of its high precision and high efficiency. While ordinary water meters are more often used in the measurement of daily life water, such as families, schools, hospitals and other places. Of course, with the continuous progress of technology and market expansion, the application of electromagnetic water meter in more fields will be gradually unfolded.

　　In terms of cost and maintenance, although the manufacturing cost of electromagnetic water meter is relatively high, its long service life, high measurement accuracy and low maintenance cost make its overall cost-effectiveness relatively high. And although the manufacturing cost and maintenance cost of ordinary water meters are relatively low, the cost of long-term use may also be relatively high due to the need for regular replacement of parts and maintenance.

　　In addition, in terms of the level of intelligence, electromagnetic water meters also show unique advantages. Because of its own electrical signal output function, electromagnetic water meter can more conveniently complete the data transmission, prepayment and other functions to realize intelligent management. On the other hand, ordinary water meters usually do not have these functions, and the level of intelligence is relatively low.

　　To summarize, there are significant differences between electromagnetic water meters and ordinary water meters in many aspects. Electromagnetic water meter with its high precision, high efficiency, intelligence and other characteristics, gradually in various fields to be widely used; while the ordinary water meter with its low cost, simple installation and other characteristics, is still in the daily life plays an important role. With the continuous progress of technology and market changes, these two kinds of water meters will each play a greater advantage, and jointly promote the continuous development of the water meter industry.