Electromagnetic induction

"Guangzhou 迪川 Instrument Co., Ltd." intelligent electromagnetic flowmeter is used to measure the volume of a continuous or intermittent flow through closed conduits for conducting liquid and liquid-solid two-phase flow. Because of its accuracy is not measured media temperature, density, viscosity and electrical conductivity (above the minimum allowed) the impact of changes, select the appropriate lining and electrode materials, you can measure a variety of corrosive (such as acids, alkalis, salt) and pulp friction coefficient and other media flow. So, is widely used in petroleum, chemical, water, metallurgy, mining, water supply, environmental protection, food safety and other fields. An overview of electromagnetic flowmeter measurement principle is based on Faraday's law of electromagnetic induction. Measuring tube flowmeter is a non-magnetic metal lined insulating material spool. Two electrode extension diameter direction of the through-wall fixed on the measuring tube. Its tip and the inner surface of the lining substantially flush. When the field coil excitation by the bi-directional square wave pulse, will produce a magnetic flux density in a direction perpendicular to the axis of the measuring tube a magnetic field B of the work. At this time, if the fluid flowing through the measuring tube has a certain electrical conductivity, the cutting magnetic lines induced electromotive force E. Electromotive force E is proportional to the magnetic flux density B, measuring tube diameter d and average velocity v of the product. Electromotive force E (traffic signal) detected by the electrodes and sent through the cable converter. After the flow transducer signal amplification processing, fluid flow can be displayed, and the output pulse energy, and other analog current signal for controlling and adjusting the flow rate. One split electromagnetic flowmeter electromagnetic flowmeter Second, product characteristics inner tube no moving parts, unimpeded flow of parts, measuring almost no additional pressure loss. Measurements and velocity distribution of the physical parameters of fluid pressure, temperature, density, viscosity and so on. In the field online range according to the actual needs. . Using SMD devices and surface mount (SMT) technology, circuit reliability. It uses 16-bit embedded microprocessors, computing speed, high precision, programmable low-frequency square wave excitation frequency and improve the stability of flow measurement, low power consumption. The whole digital processing, anti-interference ability, reliable measurement, high accuracy flow measurement range up to 150: 1. Ultra-low EMI switching power supply for power supply voltage range, anti-EMI performance. The interior has three totalizer can show a positive amount and the difference between the cumulative volume totalizer, the internal clock has not power down, it can record 16 power-down time. (Optional). Has RS485, RS232, Hart, and Modbus and other digital communication signal output. (Optional). With self-test and self-assertion. Infrared handheld operator, 115KHZ communication speed, long-distance non-contact operation converter all functions. (Optional) The total amount of hours recording function, in hours recorded total traffic for time-measurement system. . (Optional) Third, the main technical parameters nominal diameter range DN (mm) pipeline tetrafluoroethylene lining: 10, 15, 20, 32, 40, 50, 65, 80, 100, 125, 150, 200, 250, 300, 350, 400, 450, 500, 600 rubber pipe lining: 40, 50, 65, 80, 100, 125, 150, 200, 300, 350, 400, 500, 600, 800, 1000, 1200. The flow direction: positive and negative net flows. Turndown Ratio: 150: 1. Repeatability error: measured value ± 0. 1% accuracy class: 0.5, 1.0 (pipeline) measured medium temperature: Normal rubber lining: -20 ~ +60 ℃ high temperature rubber lining: -20 ~ +90 ℃ PTFE lining: -30 ~ +100 ℃ high temperature tetrafluoroethylene lining: -30 ~ +180 ℃. Rated working pressure: Pipeline: DN6 ~ DN80 ≤ 1.6Mpa, DN100 ~ DN250 ≤ 1.0Mpa, DN300 ~ DN1200 ≤ 0.6Mpa. The flow measuring range: flow measurement range corresponds to the flow rate in the range of 0.1 ~ 15m / s Conductivity range: the measured fluid conductivity ≥ 5us / cm (one), most of the media as a component of water, its conductivity at 200 ~ 800 μ s / cm within the range can be selected electromagnetic flowmeter to measure the flow rate. Current output: 0 ~ 10mA when the load resistance is 0 ~ 1.5k Ω; when 4 ~ 20mA, the load resistance is 0 ~ 750k Ω digital frequency output: maximum output frequency can be set with optical isolation within 1 ~ 5000Hz. bidirectional open-collector transistor outputs. When external power supply ≤ 35V conduction collector maximum current of 250mA. . Power supply: 85 ~ 265V, 45 ~ 63Hz. Straight pipe length: pipeline: upstream ≥ 5DN, downstream ≥ 2DN. . Connection: between the meter and piping are flange connection, flange connection size shall comply with the provisions of GB11988. Explosion-proof mark: mdIIBT4. Ambient temperature:. -25 ~ 60 ℃ Relative humidity: 5% to 95% of the total power consumption: less than 20 watts. 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TEL: 020-85628522 020-85550363 FAX: 02085628533 http: //www.gz-dichuan.com Keywords: flowmeter, electromagnetic flowmeter, intelligent electromagnetic flow meter, sewage flow meter, one of the electromagnetic flow meter, electromagnetic flow meter split, insertion electromagnetic flowmeters, electromagnetic flowmeters large pipeline , acids, bases, salts electromagnetic flow meter, electromagnetic flow meter mud: EMFM Brand: Guangzhou Dichuan meter