The operating principle of electromagnetic flowmeter is based on Faraday’s law of electromagnetic induction. Following Faraday’s law, magnetic flowmeters measure the velocity of conductive liquids in pipes, such as water, acids, caustic, and slurries. In order of usage, magnetic flowmeter use in water/wastewater industry, chemical, food and beverage, power, pulp and paper, metals and mining, and pharmaceutical application.