Phone:
+8619157815720
Views: 172 Author: Site Editor Publish Time: 2021-08-22 Origin: Site
Electromagnetic flowmeters use Faraday's law to determine the flow of liquid in the pipeline. As a result, the flow of the conductive liquid through the magnetic field causes the electrodes located on the wall of the flow tube to sense a voltage signal. The voltage generated is proportional to the movement of the flowing liquid. In other words, the faster the fluid flows, the greater the voltage generated. Therefore, the electromagnetic flowmeter processes the voltage signal to determine the liquid flow rate.
Electromagnetic flow meters have no mechanical components in contact with the fluid, reducing wear and tear.
This results in lower maintenance requirements and longer operational life.
EMFs provide highly accurate flow measurements, typically within ±0.5% of the reading.
They are not affected by changes in fluid density, viscosity, or temperature, ensuring consistent performance.
Suitable for measuring the flow of conductive liquids, including water, acids, alkalis, slurries, and corrosive fluids.
Commonly used in industries such as water and wastewater, chemical, food and beverage, pharmaceuticals, and mining.
Electromagnetic flow meters can measure flow in both directions, making them versatile for applications requiring reverse flow monitoring.
The design of EMFs creates minimal obstruction to the flow, resulting in a very low pressure drop across the meter.
This is particularly beneficial for energy efficiency in pumping systems.
EMFs can measure fluids with low conductivity (as low as 5 µS/cm in some models), making them suitable for a variety of liquids.
The absence of moving parts and the availability of corrosion-resistant linings (e.g., PTFE, PFA, ceramic) make EMFs ideal for abrasive or corrosive fluids.
The full-bore design of EMFs allows the fluid to pass through without any obstructions, preventing clogging and making them suitable for slurries and dirty liquids.
Electromagnetic flow meters are available in a wide range of sizes, from small diameters (a few millimeters) to large diameters (several meters), accommodating various flow rates and pipe sizes.
EMFs are relatively easy to install, with options for flanged, wafer, or insertion-type installations.
Their simple design and lack of moving parts reduce maintenance requirements and downtime.
EMFs with smooth linings (e.g., PFA or PTFE) are suitable for hygienic applications, such as in the food, beverage, and pharmaceutical industries.
Modern electromagnetic flow meters often come with advanced features, such as digital signal processing, self-diagnostics, and communication protocols (e.g., HART, Modbus, Profibus).
These features enhance accuracy, reliability, and integration with control systems.
EMFs maintain their calibration and accuracy over long periods, reducing the need for frequent recalibration.
Since EMFs do not introduce any contaminants into the fluid and have no mechanical parts that can degrade, they are environmentally friendly and suitable for sensitive applications.
All of our full-bore electromagnetic flowmeters provide a complete solution for continuous measurement or batch control, suitable for a variety of applications from water treatment to sanitary food and beverage or pharmaceutical applications.
About ARTang
ARTang is a global leader in measurement instrumentation, services and solutions for industrial process engineering that energizes the transformation of society and industry to achieve a more productive, sustainable future. We provide process solutions for flow, level, pressure, analytics and digital communications, optimizing processes in terms of economic efficiency, safety & environmental impact.