Electromagnetic flow meter is widely used in water treatment, food industry, pharmaceutical, petrochemical, paper mill, chemical monitoring etc. In the metallurgical industry, it is often used to control the flow of cooling water for continuous steel casting, continuous steel rolling, and steel-making electric furnaces; In the field of water supply and drainage in public utilities, electromagnetic flow meters are often used for the transfer measurement of finished product water and raw water in water plants; In the pulp process of the paper industry, electromagnetic flow meters are involved in the measurement of the flow of grinding pulp, water, acid, and alkali; In the coal industry, measuring coal washing and pipeline hydraulic conveying coal slurry. For food and beverage industries, it is used for beer and beverage filling measurement. For chemical and petrochemical industries, it is used to measure corrosive liquids, such as acids and alkalis etc