What Are Magnetic Flow Meters?
Magnetic flow meters, also known as magmeters, are widely used in a variety of industrial field applications due to their reliable flow rate measurements and features such as low-pressure loss and maintenance-free operation.
Yokogawa’s ADMAG series magnetic flow meters are designed with dual-frequency excitation to achieve stable measurement, zero stability, and quick response times.
Learn more about how magnetic flow meters work and the technology behind Yokogawa's ADMAG flow meters.
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ADMAG AXG
Magnetic flowmeters for oil & gas, chemical, pulp & paper, food & beverage, and metal & mining applications
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ADMAG AXW
Magnetic flowmeters for water supply/sewage applications and general industrial applications
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Magnetic Flowmeter CA Series
Magnetic flowmeters for slurry fluids and adhesive fluids
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FSA130 Magnetic Flowmeter / Vortex Flowmeter Verification Tool
Magnetic Flowmeter/Vortex Flowmeter Verification Tool for diagnosis, reporting, and data management.
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ADMAG AXR
Two-wire Magnetic Flow Meter
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ADMAG TI Remote Transmitters
Remote transmitters (converters) for ADMAG TI provide outstanding reliability and quicker response time.
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ADMAG TI - AXG Ethernet Flow Meter with EtherNet/IP Connectivity
Flow Meters with EtherNet/IP connectivity
Details
ADMAG Total Insight Electromagnetic Flow Meters
Total Insight is a Yokogawa concept for optimizing operations and reducing maintenance costs through every phase of the product lifecycle. The ADMAG TI magnetic flow measurement series consists of the ADMAG AXG and the ADMAG AXW electromagnetic flow meters. For industries such as pulp & paper and more, ADMAG TI series magnetic flow meters have digesters that are reinforced and protections to resist wear and deformation and extend service life, even under harsh high-pressure and high-temperature conditions. The ADMAG AXG is a complete redesign of the ADMAG AXF and will accommodate bore diameters from 2.5 mm up to 500 mm, while the revamped ADMAG AXW will accommodate bore diameters ranging from 25 mm to 1800 mm.
What Are the Benefits of Magnetic Flow Meters?
All Yokogawa magnetic flow meters are engineered with dual-frequency excitation, an innovative method that superimposes high frequencies on low frequencies, providing the best of AC and pulsed DC excitation. This technology ensures excellent flow noise immunity, fast response times, and excellent stability by utilizing the low-frequency spectrum while maintaining high accuracy and high zero stability.
How Does a Magnetic Flow Meter Work?
Magnetic Flow Meter Principle: Faraday's Law
Flow Measurement
Magnetic flow meters consist of a detector and a converter, with the principle of the detector adopting Faraday's electromagnetic induction law. Faraday's Law states that if conductive fluid flows in a magnetic field, an electromagnetic force is generated in proportion to the fluid's flow velocity. Generally, the inner walls of a detector's measurement tube (metal pipe made of SUS, etc.) are lined with a relatively thick insulating layer to prevent the shorting of the generated electromotive force. This insulating layer is referred to as "lining." There are many kinds of lining materials available that provide corrosion and abrasion resistance to the fluids being measured.
Resources
- To bring the customer a real-time monitoring and management capability, Yokogawa installed STARDOM (FCJ), flow meters, and transmitters at key points throughout the distribution network.
- The STARDOM FCJ controllers achieved an accurate water loss management system while keeping the running costs to a minimum.
Water Supply Treatment
FAST/TOOLS, STARDOM, Flowmeters, Liquid Analyzers
- Bali's water treatment plant decided to employ the latest reliable control system in order to increase availability and quality of operation.
- Centralized control system using FAST/TOOLS provides the sophisticated and flexible operation.
With the high temperatures, pressures, and levels of dissolved organics that are encountered, the ADMAG AXG flow meter design is ideal for use in all phases of the chemical recovery process.
Boosting efficiency in Chlor-Alkali Plants with the ADMAG Magnetic Flowmeter provides accurate, stable flow measurement for Brine and Caustic in Chlor-Alkali electrolyzer cells, improving production efficiency and reducing energy consumption.
Challenge: The customer's existing measurement device was disturbed by vibration and could not be compensated or corrected by the product that was installed.
Angel Yeast Co., Ltd. is a leading global player in the yeast and deep-processed products industry, with production bases in 13 cities worldwide. Their yeast series products account for over 17% of the global market, ranking second globally.
In their production process, additives like nitrogen, phosphorus, and potassium are crucial, requiring accurate measurement and stabilization to ensure the final product meets specifications. Yokogawa proposed the AXG electromagnetic flowmeter as a solution, providing dual-frequency excitation for both rapid response and reduced noise.
Yokogawa’s latest generation of ADMAG AXG Series is the most suitable magnetic flowmeter with adhesion level diagnosis and dual-frequency excitation method provides stable flow measurement even under high flow noise in the severe applications like the flow of aluminum slurries.
Questionable flow and conductivity measurements during CIP could raise questions about food quality and safety.
Flow performance extends cell membrane life with accurate, reliable, and stable performance - saving millions of dollars in membrane repair costs, reducing instrument maintenance costs and production downtime, and production loss.
The ADMAG AXR employs the patented “Dual Frequency Excitation Method.” This unique technology combines the best properties of low-frequency excitation to enable a stable measurement and high-frequency excitation to deliver excellent noise immunity. As a result, the AXR can suppress process-generated noise to secure zero stability without sacrificing fast response time. In addition, the AXR achieves the same level of noise immunity as a 4-wire circuit under varying fluid conditions and delivers the performance necessary to meet the requirements for control loop applications.
The condiment facility staff had success with Yokogawa’s ADMAG TI AXG magnetic flowmeters in other applications. When they learned EtherNet/IP communication was now offered on the ADMAG TI - AXG, they chose to use the Yokogawa magmeter solution on the mustard grinding lines.
Yokogawa's ceramic liner can offer the customer superior resistance to thermal shock and the failure that can occur due to liner cracking. This is due to Yokogawa's use of 99.9% pure Al2O3 for the liner.
Accurate and durable magnetic flow meters (magmeters) were difficult to maintain in the process as the corrosive and abrasive nature of the process degraded their operation. That led to leaks that not only reduced the flow but also contaminated the product and the magmeters. Since Sigura maintained strong vigilance, the company needed to replace some magmeters monthly...
In order to reduce emissions of air pollutants such as sulfur oxides (SOx) and nitrogen oxides (NOx), power plants have installed flue gas desulfurization systems known as scrubbers.
Yokogawa’s ADMAG TI - AXG magnetic flowmeter (magmeter) with EtherNet/IP is used to measure the water moving from the pump to the snow cannons. The accurate measurement allows the operator to monitor and control the water in the mixture to produce artificial snow with the perfect consistency.
Using recycled oil as an energy source poses a challenge due to its inconsistent composition and potential impurities. Conventional flowmeter technologies are impractical in such cases. The CA Series, however, reliably and stably measures the flow of recycled oil mixed with water.
Read this eBook to learn how to best leverage the latest measurement instrumentation to avoid incidents and improve productivity. You will also find valuable information about overcoming common CIP challenges and stories of success.
A Basic Guide to Accurate & Reliable Flow Measurement.
Smart devices, like Yokogawa’s line of Total Insight transmitters and flowmeters contribute to Digital Transformation during operations and throughout the lifecycle of the instrument.
After having undergone several improvements, magnetic flow meters have become highly accurate and reliable and are widely used in the industrial instrument field today. Magnetic flow meters consist of a detector and a converter, with the principle of the detector adopting Faraday's electromagnetic induction law.
Recent or pending air pollution legislation to reduce the amount of air pollutants is increasing worldwide. In the U.S., The Clean Air Act address numerous air quality problems. One of these problems is acid rain (much of which falls in Canada) caused by sulfur dioxide and nitrogen oxide emissions from fossil-fueled power plants and other industrial and transportation sources.
View Efficient Plant Article
Downloads
Brochures
- CA Series – Measuring the Impossible When Nothing Else Will Work (330 KB)
- Preserving Our Water Resources One Drop at a Time (6.5 MB)
- Benefits of ADMAG Total Insight Series Magnetic Flow Meter for Pulp & Paper (871 KB)
- Five Mistakes When Selecting a Flowmeter (440 KB)
- Yokogawa in the Water Industry in North America (1.8 MB)
- Electrolysis Solutions: Instrumentation Solutions for Electrolysis Plant Applications (841 KB)
- Yokogawa in the Food and Beverage Industry (5.9 MB)
- Brochure: Five Mistakes When Selecting a Flowmeter
- Water Industry Solutions (739 KB)
- Flow Meter Selection Guide Poster
Instruction Manuals
- ADMAG AE BRAIN Communicating Magnetic Flow Meters (58 KB)
- How to Connect ADMAG TI - AXG with EtherNet/IP to a Webserver
- ADMAG AE HART Communicating Magnetic Flow Meters Pocket Guide (72 KB)
- ADMAG AE HART IOM (255 KB)
- ADMAG BRAIN Communicating Advanced Magnetic Meter Pocket Guide (55 KB)
- ADMAG CA BRAIN Communicating Magnetic Flow Meter Pocket Guide (56 KB)
- ADMAG HART & BRAIN Communicating Magnetic Meter Pocket Guide (71 KB)
- ADMAG SE BRAIN Communicating Magnetic Flow Meters Pocket Guide (70 KB)
- ADMAG SE HART Communicating Magnetic Flow Meters Pocket Guide (60 KB)
- AE14 Converter (796 KB)
- AM012 - Magnetic Flow Meter Simulator (533 KB)
- Foundation Fieldbus For ADMAG AE (399 KB)
- Integral Magnetic Flow Meter AE100-300 (1.3 MB)
- Magnetic Flow Tube - AM100D-AM500D (835 KB)
- Manual Change 05-008-1E - SE100-200MJ/NJ (49 KB)
- Manual Change 05-023-1E - AE100-300 Integral (108 KB)
- Manual Change 05-023-2E - AE100-300D Remote (97 KB)
- Model SE14 Magnetic Flow Converter Manual Change (72 KB)
- Models CA100S and 200S Capacitance Magnetic Flow Meter Manual Change (81 KB)
- Models SE100DJ/EJ, SE200DJ/EJ and SE300DJ/EJ Magnetic Flow Tube Manual Change (61 KB)
- Models SE100MJ/NJ and SE200MJ/NJ Integral Type Magnetic Flow Meter Manual Change (67 KB)
- Remote Type Magnetic Flow Meter AE100-300D (738 KB)
- YMA11 User Manaul - Rev 3 (3.7 MB)
General Specifications
Technical Information
Videos
This video explains how to open .eds files in Studio 5000. The Yokogawa Magnetic Flow Meter ADMAG TI - AXG with EtherNet/IP is used as an example.
This video shows steps to bring the Studio 5000 Data Points into the FactoryTalk View Studio. The Yokogawa Magnetic Flow Meter ADMAG IT - AXG with EtherNet/IP is shown as an example.
This video describes the process of connecting the Yokogawa Magnetic Flow Meter ADMAG TI - AXG with EtherNet/IP to a webserver
In the digester process, high temperature and pressure, along with the slurry pulp, can cause extreme damage to traditional meters.
Our experts review the theory behind flow measurement technologies. Discuss common flow application challenges and evaluate the different technologies when selecting a flow meter. They also give examples of best installation practices for successful measurements.
What about other instrumentation pain-points in the blow tank, washing, or bleaching process?
To effectively control and optimize industrial processes, trusting measurements from flowmeters is vital.
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