ABB Application Note Magnos28 Oxygen Purity Measurement
Summary
The Magnos28 is a high-precision digital paramagnetic oxygen analyzer designed for critical industrial gas measurement, specializing in Air Separation Units (ASUs). This guide details how the revolutionary technology delivers highly accurate and reliable oxygen purity readings across extreme ranges (0–100 vol%). It covers advanced features like 32-bit conversion and pressure compensation, ensuring superior process control. Ideal for process engineers and plant managers who require industry-leading accuracy and minimal drift when measuring gases vital to continuous industrial operation.
Page 1 Text Content
ABB NT AN CS AP LI CA IO NO
Air Separation Units Magnos28 – A revolution in oxygen purity measurement
One of the key target applications
ABB Automation Gmb H
Measurement & Analytics of the Magnos28 digital microwing
Stierstädter Straße 5
paramagnetic oxygen analyzer is
60488 Frankfurt am Main
air separation unit process control.
Germany Fax: +49 69 7930-4566 Mail: [email protected]
Measurement made easy
abb.com/measurement
Introduction Immediate 32bit analogue to digital The Magnos28 is available with various conversion takes place immediately after the physical sensor. This provides signal
measurement ranges, for example, one which is of
processing with minimized noise – a
extremely high relevance to industrial gases
prerequisite for high resolution
production: 99.5 to 100 vol% oxygen.
measurements.
/A LY IC L/ 2- ev . A .2
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Page Summary Contents For ABB Application Note Magnos28 Oxygen Purity Measurement
Manual Details
| Brand | Measurement |
|---|---|
| Pages | 3 |
| File Size | 597.19 KB |
| Published | June 03, 2026 |
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Frequently Asked Questions
What is a key application for the Magnos28 analyzer?
It is used in air separation units (ASUs) process control for oxygen purity measurement.
How does the Magnos28 improve signal sensitivity in different ranges?
It uses immediate 32-bit analogue to digital conversion and incorporates a pressure sensor reading to compensate for changes in air pressure, minimizing noise.
What types of oxygen concentration measurements can the Magnos28 handle?
It covers wide dynamic ranges, from low concentrations (0 to 5 vol%) up to high purity readings (99.5 to 100 vol%).
How does using Magnos28 help with operational costs on an ASU?
By providing accurate measurements and minimized oxygen loss during venting, it helps improve process efficiency, resulting in lower operating costs.
Is the Magnos28 sensitive to air pressure changes?
Yes, the unit incorporates a dedicated internal pressure sensor specifically designed to compensate for fluctuations in air pressure.