KEF200 series intelligent electromagnetic flowmeter is based on Ferrari electromagnetic induction principle and weight function magnetic field distribution technology and developed a successful intelligent electromagnetic flowmeter with good stability and high accuracy, used to measure the conductivity greater than 5μs/cm flow of conductive liquids. The use of low-frequency rectangular wave excitation and intelligent converter technology, the zero point is very stable, the accuracy of 0.5, 0.2, repeatability 0.25%. Intelligent electromagnetic flowmeter with 4-8 multiple electrode structure, to further ensure the measurement accuracy and at any time without grounding ring, reducing the size of the instrument and the installation and maintenance of the trouble.