The ADMAG AXR two-wire, loop-powered magnetic flow meter can be installed in a two-wire system. The maximum power consumption of the AXR is 0.3W, 40 times less power draw than a traditional magnetic flow meter, resulting in CAPEX and OPEX savings.
The ADMAG AXR is the world's first two-wire magnetic flow meter that employs the fluid noise-free "Dual Frequency Excitation Method" for excellent stability for instrumentation.
Details
What Is the The ADMAG AXR?
2-wire Power Loop
An extra AC power supply is not necessary. 2-wire loop powered performance allows direct connection to DCS I/O card possible, allowing for real cost reductions.
- Reduced CAPEX and OPEX on site.
- Power consumption reduced by 40% compared to a typical 4-wire magnetic flowmeter.
- Annual CO2 emissions can be reduced from approximately 60 kg to 1.2 kg (compared to a standard 4-wire magnetic flowmeter).
Dual Frequency Performance
Yokogawa’s unique and advanced excitation method, "Dual Frequency Excitation," achieves stable measurement, zero stability and quick response times. The exclusive technology for stable and reliable measurement on your site.
Noise Reduction Technology
Flow noise reduction is further achieved by incorporating smooth mirror finished PFA liners and special surface finished electrodes. This is further enhanced with aligned super high density coils that generate a stronger magnetic field.
SIL2 Certified
Yokogawa believes safety should not be an option; it should be standard in all modern products. AXR is the first 2-wire magmeter of SIL2 Safety Integrity Level (IEC 61508) certified. AXR is capable of SIL2 single use and SIL3 redundant use, as standard.
Parameter Operation
AXR has magnet switches for parameter setting. Users can access the functions without removing the case cover in hazardous, humid, and dusty environments.
Adhesion Diagnostic Level Function
The electrode is one of the most important parts of a magnetic flow meter. Only ADMAG flow meters have "Adhesion Diagnostic Level Function". It diagnoses the condition of electrode surface and indicates the adhesion/coating in 4 levels. Users can change the detection level (threshold) depending on each individual process condition. This allows for predictive maintenance and reduced operating costs.
Alarm Indication
ADMAG AXR employs a full-dot matrix LCD indicator. It can display up to 3 lines as required by the user and is available in multiple languages. If an alarm is triggered, a clear message is displayed along with a solution.
High Accuracy
The ADMAG AXR performs 0.5% of rate under normal flow rate conditions.
| Structure | Integral flow meter |
|---|---|
| Excitation Method | Dual frequency excitation |
| Nominal Pipe Size [Unit : mm (approx. inch)] |
General-purpose use: 25 (1.0) to 200 (8.0) Explosion proof Type: 25 (1.0) to 200 (4.0) |
| Supply Voltage | Operating voltage range 14.7 to 35 V DC Two-wire system |
| Output Signals | Current output Digital output (One output can be selected from pulse, alarm or status outputs.) |
| Electrode Material | Stainless steel-JIS SUS316L (AISI 316L SS/EN 1.4404 equivalent), Hastelloy C276 equivalent, Tantalum, Platinum-iridium |
| Fluid Temp. | - 40 to 130 deg.C (-40 to 266 deg.F) [ depends on model type ] |
| Ambient Temp. | - 40 to 55 deg.C (-40 to 131 deg.F) |
| Accuracy | 0.5% of rate (Note 1) [ depends on nominal pipe size and fluid condition ] |
| Fluid Conductivity | 10 micro-S/cm or larger [ depends on nominal pipe size and fluid condition ] |
| Lining | Fluorocarbon PFA (Mirror-finished lining surface) (Note 2) |
| Lay Length [Unit : mm (approx. inch)] |
Lay length code 1: Wafer ; size 80 (3.0) to 200 (8.0), Flange ; size 25 (1.0) to 200 (8.0) Lay length code 2: Wafer ; size 25 (1.0) to 200 (8.0) |
| Indicator | Full dot-matrix LCD |
| Operational Switch | 4 magnet switches (including push switches) |
| Self Diagnosis | Electrode adhesion diagnosis, Coil open, etc. |
| Alarm Message | Alarm message with countermeasure is indicated ( English, German, French, Italian, Spanish, Japanese ) |
| Options | Direction change of the electrical connection, Special Gaskets, |
* Please refer to General Specifications in detail.
Note 1: The accuracy of a product before shipment is defined as totalized value at the result of calibration test in our water actual flow test facility.
Note 2: Mirror finished PFA lining is standard for size 25 to 100 mm (1 to 4 in.) and optional for size 150 to 200 mm (6 to 8 in.) specified by optional code PM.
Resources
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 pulp and paper industry holds some of the most aggressive and challenging applications for magmeters. There are corrosive chemicals, high temperatures and pressures, and abrasive slurries. One application which is particularly difficult is the measurement of pulp stock from the digester to the blow tank. Yokogawa can provide one of the most reliable and accurate meters for this application.
Control Engineering Asia, March 2012
Enabling the operational benefits of two-wire magnetic flow meters while maintaining the performance levels associated with traditional four-wire devices.
Downloads
Brochures
- Magnetic Flowmeter ADMAG series (3.1 MB)
- Brochure: Five Mistakes When Selecting a Flowmeter
- ADMAG Handbook Frontpage / Yokogawa Flow Solution (7.3 MB)
- Advanced Diagnostics for Increased Process Visibility (1.2 MB)
- Beyond Standard Answer for Your Requirements (Customized Solution) (769 KB)
- Five Mistakes When Selecting a Flowmeter (440 KB)
- Ceramic Liner for Superior Abrasive & Chemical Resistance (1.2 MB)
- Flow Meter Selection Guide Poster
- Dual Excitation for Stable Measurement in Any Application (960 KB)
- Electrode Construction for Uninterrupted Operation (1.4 MB)
- Flow Meters History (1.6 MB)
- Magmeters History and Working Principle (1.4 MB)
- PFA Liner Durable under Any Process Condition (1.3 MB)
- Rigid Construction for Installation Flexibility (767 KB)
Instruction Manuals
- Manual Change 18-0010-E (1.1 MB)
General Specifications
Software
Certificates
Engineering Tools
Videos
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.
2D/3D Configurator
News
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Press Release Jul 6, 2017 Yokogawa Provides Enhanced Online Product Selection Experience
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