Electromagnetic flowmeter consists of two parts: sensor and converter. It is based on Faraday's law of electromagnetic induction, used to measure the volumetric flow rate of conductive liquids with conductivity greater than 5μS/cm. It is an inductive instrument for measuring the volume flow of conductive media. In addition to measuring the volumetric flow of general conductive liquids, it can also be used to measure the volumetric flow of highly corrosive liquids such as strong acids and alkalis and even liquid-solid two-phase suspension liquids such as mud, pulp, and pulp. Electromagnetic flowmeter is widely used in petroleum, chemical, metallurgy, textile, paper, environmental protection, food and other industrial sectors and municipal management, water conservancy construction, river dredging and other areas of flow measurement. Electromagnetic flow meter IP65 degree of protection under normal circumstances, according to the national standard GB4208-84 and the International Electrotechnical Commission standard IEC529-76 on electrical products, electrical enclosure rating is required standards: A, IP65: For the spray-proof type, the electromagnetic flowmeter sensor housing allows the faucet to spray water from the sensor of the electromagnetic flowmeter in any direction, the pressure of the spray water is 30Kpa, the water output is 12.5L/S, and the distance is 3 meters. . B, IP67: Electromagnetic flowmeter sensor can be used to soak in water for a short time. C, IP68: For submersible type, suitable for long-term work in water or underground under certain pressure, at this time, the sensor and display part of the electromagnetic flowmeter are separated, and the electromagnetic flowmeter is to be composed, but the protection of the electromagnetic flowmeter must be emphasized. Grade requirements. Under normal circumstances, the degree of protection should be selected according to the actual situation, the sensor requires to be installed below the ground, often under flooding conditions should choose IP68, sensor installed above the ground should choose IP65, IP67. In any case, the display area of ​​the electromagnetic flowmeter cannot be used or entered the water, and this may cause damage to the electromagnetic flowmeter.
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