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Electromagnetic flowmeters are primarily used in industries such as chemicals, papermaking, food processing, textiles, and environmental protection. They are used to measure the flow rate of conductive fluids, and can be combined with computing systems to enable system control. There are three main types of electromagnetic flowmeters: integrated electromagnetic flowmeters, split-type electromagnetic flowmeters, and insert-type electromagnetic flowmeters. Each type has its own requirements regarding the installation environment and wiring methods. However, electromagnetic flowmeters generally share the following characteristics: 1. They have no moving parts or flow obstructing elements, so they do not cause pressure losses, nor do they lead to issues such as wear or blockages. 2. Electromagnetic flowmeters are not affected by the temperature, viscosity, density, and conductivity of the fluid being measured (within certain limits) during the measurement process. 3. The electromagnetic flowmeter has a wide range, up to 1:100. Furthermore, an electromagnetic flowmeter is proportional only to the uniform flow velocity of the medium being measured, and is independent of the axisymmetric flow regime (laminar or turbulent). 4. Electromagnetic flowmeters have no mechanical inertia, are highly sensitive, capable of measuring instantaneous pulsating flows, and exhibit good linearity; therefore, the measurement signal can be directly and linearly converted into a standard signal using a converter for output.