WORKING PRINCIPLE
This electromagnetic flowmeter can be used to measure the volume flow of conductive fluid in a closed pipeline. It is widely used in the flow measurement and control in fields such as chemical and petroleum industries, metallurgy industry, water and waste-water, agriculture and irrigation, paper making, food and beverage industries as well as the pharmaceutical industry.
The measuring principle of an electromagnetic flowmeter is based on the electromagnetic induction law of Farady. The sensor is mainly composed of a measuring tube with an isolate lining, two (2) electrodes, a coil and an iron core which produces the magnetic field. When a conductive fluid passes through the measuring tube, a voltage signal is inducted on the electrodes. This signal is in direct proportion to the average flow velocity of the fluid. The signal is amplified and converted to produce the required display on screen.
FEATURES
â–¡ Measurement not affected by the variation of neither flow density, viscosity, temperature, pressure nor conductivity.
â–¡ High accuracy measurement is guaranteed because of the linear measurement principle.
â–¡ No obstruction in the pipe, no pressure-loss and lower requirement for straight pipeline.
â–¡ Available from DN 15 to DN3000 covers a wide range of pipe size.
â–¡ A variety of liners and electrodes are available to satisfy different flow characteristics.
â–¡ Programmable low frequency square wave field excitation, improving measurement stability and reducing power consumption.
â–¡ Implementing 16 bits MCU, providing high integration and accuracy; measurement range up to 1500:1.
â–¡ Full-digital processing, high noise resistance and reliable flow measurement.
â–¡ High definition backlit LCD display.
â–¡ Supports digital communication interfaces such as RS485 or RS232.
â–¡ Intelligent "Empty Pipe Detection" and "Contaminated Electrodes" detection.
â–¡ SMD component and surface mount technology (SMT) are implemented to improve the reliability.
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