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How to select the electromagnetic flowmeter protection level introduction

The electromagnetic flowmeter consists of two parts: a sensor and a converter. It is based on Faraday's law of electromagnetic induction and is used to measure the volumetric flow of conductive liquid with conductivity greater than 5μS/cm. It is an inductive instrument for measuring the volumetric flow of conductive media. In addition to measuring the volumetric flow rate of general conductive liquids, it can also be used to measure the volumetric flow rate of strong corrosive liquids such as strong acid and alkali, and uniform liquid-solid two-phase suspension liquids such as mud, slurry and pulp.

Electromagnetic flowmeters are widely used in petroleum, chemical, metallurgy, textile, paper, environmental, food and other industrial sectors and municipal management, water conservancy construction, river dredging and other fields of flow measurement.

Under normal circumstances, the integrated electromagnetic flowmeter has a protection rating of IP65. According to the national standard GB4208-84 and the International Electrotechnical Commission standard IEC529-76, the standards for the protection level of electrical and electronic products are:

1. IP65: For the anti-spray type, the electromagnetic flowmeter sensor housing allows the faucet to spray water from the sensor in any direction of the sensor of the electromagnetic flowmeter. The water spray pressure is 30Kpa, the water output is 12.5L/S, and the distance is 3 meters. .

3, IP68: for the submersible type - suitable for long-term work in water or underground under certain pressure, at this time the sensor of the electromagnetic flowmeter is separated from the display part, to do the component type electromagnetic flowmeter, but the protection of the electromagnetic flowmeter must be emphasized Level requirements.

Under normal circumstances, the degree of protection should be selected according to the actual situation. If the sensor is required to be installed below the ground and is often flooded, IP68 should be selected. If the sensor is installed above the ground, IP65 should be selected. In any case, the display area of the electromagnetic flowmeter cannot be used with water or enter the water, which may cause damage to the electromagnetic flowmeter.

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