Yokogawa ADMAG AXW Magnetic Flowmeter
Overview
The Yokogawa ADMAG AXW is a magnetic flowmeter engineered for general industrial process lines and water supply/sewage applications where reliable, maintenance-free volumetric flow measurement is required across a wide range of conductive liquids. Available in remote (separate converter) configurations covering line sizes from 25 mm to 1800 mm, the ADMAG AXW extends Yokogawa’s magnetic flowmeter portfolio to large-diameter water, wastewater, and general process lines that fall outside the range of compact integral designs.
As a supplier of Yokogawa products, Seven Star LLC supplies the Yokogawa ADMAG AXW Magnetic Flowmeter to municipal utilities, industrial plants, and water authorities across the Sultanate of Oman and the wider GCC, backed by local technical support with selection and specification.
Measurement Principle
The Yokogawa ADMAG AXW operates on Faraday’s law of electromagnetic induction: a magnetic field is generated across the flow tube, and as the conductive liquid moves through this field it induces a voltage proportional to its velocity. A pair of electrodes in contact with the fluid detects this induced voltage, which the converter then processes into a standard volumetric flow signal. Because the measurement depends only on the average liquid velocity and the known pipe cross-section, it is unaffected by changes in density, viscosity, pressure, or temperature within the instrument’s rated limits.
This principle gives the Yokogawa ADMAG AXW several practical advantages that make it attractive for large-bore water and wastewater applications: there are no moving parts to wear or foul, no obstruction in the flow path that would cause a pressure drop, and no risk of contamination since the wetted parts are limited to the liner and electrodes. Advanced diagnostic routines built into the converter, including electrode adhesion detection, empty-pipe detection, and low-conductivity monitoring, continuously verify measurement integrity and flag maintenance needs before they affect billing or process control accuracy.
Engineering Design of the Yokogawa ADMAG AXW
The ADMAG AXW sensor is offered with a selection of liner materials to match the application: fluorocarbon PTFE for chemical service up to 130°C, polyurethane rubber for standard water applications up to 40°C, natural hard rubber for oily wastewater up to 80°C, and natural soft rubber for abrasive mining slurries up to 70°C. This liner flexibility allows a single flowmeter platform to be specified consistently across a plant’s potable water, process water, and wastewater lines while matching each duty’s chemical and thermal requirements.
The remote-type converter can be mounted up to 200 meters from the sensor, which is particularly valuable on buried or submerged large-diameter pipelines where the transmitter electronics must be kept in an accessible, dry location. The converter provides two active current output channels and two pulse/status channels as standard, along with support for HART 7, BRAIN, Modbus, FOUNDATION Fieldbus, PROFIBUS PA, and EtherNet/IP communication protocols, allowing integration into virtually any SCADA or DCS architecture used by regional water authorities and process plants. SIL2 certification in simplex configuration, extendable to SIL3 in redundant configuration, supports use in safety-related flow monitoring loops.
Key Features
The Yokogawa ADMAG AXW combines proven electromagnetic flow measurement technology with modern diagnostics suited to large-scale water and industrial installations:
- Covers an exceptionally wide line size range from 25 mm to 1800 mm in remote-type configuration, suiting everything from process branch lines to major transmission mains.
- Measurement accuracy of ±0.35% of reading value provides dependable custody-grade performance for water utility billing and process allocation.
- Four liner material options – PTFE, polyurethane, natural hard rubber, and natural soft rubber – allow the same platform to be specified across chemical, potable water, wastewater, and mining slurry duties.
- Built-in diagnostics including electrode adhesion detection, empty-pipe detection, wiring diagnosis, flow noise detection, and low-conductivity monitoring reduce unplanned maintenance visits.
- Remote converter mounting up to 200 meters from the sensor supports buried and submerged large-diameter pipeline installations.
- Supports HART 7, BRAIN, Modbus, FOUNDATION Fieldbus, PROFIBUS PA, and EtherNet/IP for straightforward integration with existing control and telemetry systems.
- SIL2 rating in simplex configuration and SIL3 in redundant configuration make the AXW suitable for safety instrumented flow monitoring functions.
- No moving parts and no flow obstruction mean zero pressure drop and virtually maintenance-free long-term operation.
Industrial Applications
The Yokogawa ADMAG AXW is widely deployed on municipal water transmission and distribution mains, wastewater treatment plant influent and effluent lines, industrial process water systems, and mining slurry pipelines where its wide size range and rugged liner options are decisive advantages. Its resistance to fouling and its non-intrusive measurement principle make it a preferred choice for utility operators managing aging or large-diameter infrastructure where flow accuracy directly affects billing revenue and network loss accounting.
As the trusted supplier for Yokogawa, Seven Star LLC supplies the ADMAG AXW to water authorities, desalination plant operators, industrial estates, and wastewater utilities throughout Oman, including projects supported from the Sohar and Salalah economic zones, as well as broader GCC markets, with lead time confirmed at quotation and application engineering support for liner and electrode material selection.
Technical Specifications
The table below summarizes the principal specifications of the Yokogawa ADMAG AXW Magnetic Flowmeter.
| Parameter | Specification |
|---|---|
| Model | Yokogawa ADMAG AXW |
| Line Size Range | 25 mm to 1800 mm (remote type); 25 to 1000 mm (integral type) |
| Accuracy | ±0.35% of reading value |
| Liner Materials | Fluorocarbon PTFE, polyurethane rubber, natural hard rubber, natural soft rubber |
| Liner Temperature Limits | -10 to 130°C (PTFE); -10 to 40°C (polyurethane); -5 to 80°C (hard rubber); -10 to 70°C (soft rubber) |
| Output Signals | 2 active current channels, 2 pulse/status channels (remote type) |
| Communication | HART 7, BRAIN, Modbus, FOUNDATION Fieldbus, PROFIBUS PA, EtherNet/IP |
| Safety Rating | SIL2 (simplex); SIL3 (redundant configuration) |
| Diagnostics | Electrode adhesion detection, empty-pipe detection, wiring diagnosis, flow noise detection, low-conductivity monitoring |
| Converter Mounting | Remote, up to 200 m cable run from sensor |
Request a Quote for Yokogawa ADMAG AXW
Seven Star LLC invites water utilities, industrial plants, and engineering contractors across Oman and the GCC to submit a formal request for quotation for the Yokogawa ADMAG AXW Magnetic Flowmeter. The Yokogawa ADMAG AXW is supplied on request, with lead time confirmed at quotation. In Oman and the GCC, Seven Star LLC supplies common line sizes on request, provides the manufacturer technical datasheet on request, and connects customers directly with our instrumentation division for liner selection and sizing support. Contact Seven Star LLC today to receive a competitive quotation with current lead time and local technical support.
Browse the full Yokogawa range or see more Flowmeters products supplied by Seven Star LLC in Oman and the GCC.
- datasheet Yokogawa ADMAG AXW Datasheet Download
Yokogawa product families on this page
Pressure is covered by the DPharp transmitters: the EJX110A differential pressure transmitter, the EJX530A and EJA530E in-line gauge pressure transmitters and the EJX910A multivariable transmitter. The ADMAG AXW is the magnetic flowmeter line, and the YTA610 and YTA710 are temperature transmitters. Analyzers include the FLXA402 four-wire and FLXA21 two-wire liquid analyzers, the TDLS8000 tunable diode laser gas analyzer and spare parts for zirconia oxygen analyzers, such as the E7042UD cell assembly kit for the ZR22 detector. Control hardware includes CENTUM VP I/O modules like the ADV161 digital input module and the YS1700 programmable indicating controller.Where Yokogawa instruments are used
EJA and EJX transmitters measure pressure, level and DP flow throughout oil and gas, chemical and power plants. Zirconia oxygen analyzers and the TDLS8000 are used for combustion control on boilers and fired heaters. FLXA analyzers monitor pH, conductivity and dissolved oxygen in water and process streams, and CENTUM modules are bought as replacements for running control systems.Ordering Yokogawa parts: what we need
Send the model and suffix code and the serial number from the nameplate, and for CENTUM modules the style code as well. For transmitters without a code we need span, output protocol, wetted materials, process connection, housing and the approval required. For oxygen analyzer spare parts give the detector and converter models, for example ZR22G and ZR402G, and the part number.Browse Yokogawa products by category: PLC & I/O Cards, Flowmeters, Pressure Instrumentation, Automation Accessories, Temperature Instrumentation.
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