Servomex is the expert in
oxygen analysis

Chris Davis
Product Manager

Oxygen (O2) gas analysis is key to safety, efficiency, and control in a vast range of industrial processes. Servomex provides an extensive choice of best-fit technologies to measure oxygen at percentage, trace, and ultra-trace levels. Our decades of expertise in gas analysis can be traced back to our early innovations in Paramagnetic oxygen sensing, and we have continued to build on this ever since. Our oxygen analyzers include the flagship SERVOTOUGH OxyExact 2200 Paramagnetic O2 analyzer, compact Tunable Diode Laser models, ultra-precise Coulometric trace oxygen analyzers, trusted Zirconia-based SERVOTOUGH FluegasExact 2700 combustion analyzer, and portable SERVOFLEX analyzers. Whatever your process, we have the oxygen solution you need.

Why measure oxygen?

One of the most prevalent gases on Earth – making up approximately 21% of the atmosphere – oxygen is essential to human life, making it vital to many medical gas applications. Oxygen is also widely used in industry, with applications including the production of metal and plastics. The extensive range of oxide compounds used in many processes means that there are many applications where O2 measurements are crucial for process control, safety, and efficiency.

In addition, the widespread presence of O2 in the atmosphere means that it may interfere with other processes, requiring the gas to be monitored as an impurity. While oxygen is not harmful to the environment, it may be necessary to monitor O2 emissions as part of a continuous emissions monitoring system (CEMS).

Extensive solutions for O2 gas analysis

There are several oxygen-sensing technologies available. The most appropriate solution depends on the application, and the measurement range required.

  • Paramagnetic sensing is a long-proven method of measuring percentage O2 based on oxygen’s natural paramagnetic properties. It is ideal for many industrial processes.
  • Zirconia sensing provides a trusted, in-situ, parts-per-million (ppm) measurement for combustion applications. Oxygen measurements are essential for controlling the combustion reaction safely and efficiently.
  • Coulometric sensing offers excellent ultra-trace detection of O2 down to parts-per-trillion levels. As a component of atmospheric air, oxygen is often found as a low-level contaminant in high-purity gases such as nitrogen and argon.
  • Tunable Diode Laser sensing is highly specific to the target gas, and offers a fast, highly stable, continuous cross-stack measurement, ideal for process and combustion control applications.

We’re the experts in O2 gas analysis

The diversity of Servomex’s range of oxygen analyzer solutions benefits operators by ensuring they can find the best-fit solution for their application. Our technological expertise and extensive applications experience allow us to help you to apply the most appropriate oxygen sensor to your process, rather than making the best of one or two options. Servomex technologies are proven and trusted, and used widely throughout the industry, with oxygen gas analyzer installations around the world. Our breadth of choice also extends to the type of oxygen analyzer you can select, from robust SERVOTOUGH devices for hazardous areas, through compact in-situ laser systems, to portable SERVOFLEX analyzers.

Our solutions for oxygen gas analysis

Servomex offers a wide range of oxygen gas analyzers, using various O2 sensing technologies. For hazardous area conditions, we provide several SERVOTOUGH analyzers, led by the Oxy 1900, and OxyExact 2200 Paramagnetic O2 analyzers. This range of rugged online oxygen analyzers also contains the FluegasExact 2700 combustion analyzer, which uses Zirconia sensing, and the Laser 3 Plus models which can be configured for O2.

If portability is a key consideration, our SERVOFLEX range of easily transportable oxygen analyzers can combine Paramagnetic O2 analysis with Infrared sensing to measure a combination of O2, CO, and CO2.

For trace and ultra-trace oxygen monitoring, our SERVOPRO range offers the DF-500 series of O2 analyzers and the DF-760E products for combined measurements of O2 and moisture. Multi-gas analyzers including the MultiExact 4100 and MultiExact 4200 can be configured to measure oxygen, while the MonoExact DF150E and MonoExact DF310E provide accurate O2 results for industrial gas applications. To measure oxygen as part of a continuous emissions monitoring system, we also offer the 4900 Multigas analyzer.

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4900 Multigas

SERVOPRO Safe Area

The 4900 Multigas is a high-performance CEMS analyzer designed for a wide range of multi-gas measurements.

  • Advanced digital multi-gas CEMS analysis
  • Up to four simultaneous gas stream measurements
  • Ultra-stable, accurate, non-depleting sensors
  • Auto-calibration for reduced operational needs
  • Intuitive-use icon-driven colour touchscreen
  • Digital communications for remote access

Chroma

SERVOPRO Safe Area

The Chroma is optimized to specific background gases to ensure optimum performance for your application.

  • Versatile, ultra-accurate trace gas analysis
  • Choice of non-depleting sensor technologies
  • Cost-effective solution for process control or quality monitoring
  • Works in a wide range of background gases
  • Compact 4U rack-compatible design
  • Flexible communication options

DF-550E NanoTrace

SERVOPRO Safe Area

An ultra-trace Coulometric oxygen analyzer, the DF-550E is optimized for quality measurements in ultra-high-purity electronic gases.

DF-550E an ultra-trace Coulometric oxygen analyzer.
  • An ultra-trace Coulometric oxygen analyser
  • For quality measurements in electronic gases
  • 200 parts-per-trillion Lower Detection Limit
  • Suitable for use with multiple background gases
  • Unaffected by sample and flow rate changes
  • Hand-carry portable option

DF-560E NanoTrace ULTRA

SERVOPRO Safe Area

A superior quality control solution for ultra-high-purity (UHP) electronic grade gases, the DF-560E Ultra delivers an industry-best detection of 45 parts per trillion for oxygen (O2).

SERVOPRO DF-560E ULTRA
  • Delivers industry-best oxygen measurements
  • For quality control in ultra-high-purity gases
  • Lower Detection Limit of 45 parts-per-trillion
  • High-stability Coulometric sensing technology
  • Optimised for ease of use and portability
  • Cost-effective setup and configuration

DF-760E

SERVOPRO Safe Area

Designed for quality control applications in UHP bulk gases, the compact DF-760E analyzer is a unique solution for the dual measurement of trace and ultra-trace moisture

  • For quality control in UHP bulk gases
  • Dual moisture and oxygen analysis
  • Trace and ultra-trace measurements
  • Non-depleting Coulometric O2 sensor
  • Robust TDL moisture sensing
  • Exceptional Lower Detection Limits

DF-760E ULTRA

SERVOPRO Safe Area

Designed for industry-leading quality control measurements in UHP bulk gases, the compact DF-760E ULTRA is a unique dual-analysis solution for trace and ultra-trace moisture and oxygen.

  • Dual moisture/oxygen analyser for UHP gases
  • Ideal for quality checking and leak detection
  • Lower Detection Limit of 55ppt moisture
  • Oxygen Lower Detection Limit of 45ppt
  • Combines Coulometric and TDL sensing
  • Broad detection ranges

FluegasExact 2700

SERVOTOUGH Hazardous Area

Designed to measure O2 and COe in flue gases for improved combustion efficiency and reduced emissions.

The FluegasExact 2700 analyzer for effective combustion analysis
  • For combustion efficiency and reduced emissions
  • O2 only, or O2 & COe measurements in one sensor head
  • Ideal for all types of combustion processes
  • Robust, Industrial, fully-heated sensor head
  • Long-life, low-drift Oxygen sensing technologies
  • Close coupled, low flow extractive sampling design, extends product life

Laser 3 Plus Combustion

SERVOTOUGH Hazardous Area

Unmatched installation flexibility plus cost and performance benefits, ready for fast, accurate and responsive measurements in combustion and process control.

Laser 3 Plus Combustion Tunable Diode Laser
  • Configured to measure O2, CO, or CO and CH4
  • Highly compact gas monitor
  • Ideal for in-situ cross-stack applications
  • Uses Wavelength Modulated Spectroscopy (WMS)
  • Easily installed by a single engineer
  • Reliable line lock cuvette technology

Laser 3 Plus Process

SERVOTOUGH Hazardous Area

Optimized for the fast, accurate and responsive measurement of process oxygen (O2) in hot or hazardous conditions.

Laser 3 Plus Process Tunable Diode Laser (TDL) analyzer
  • Fast, accurate process control
  • Stable, repeatable O2 measurements
  • Exceptional performance in a compact design
  • Minimal installation and maintenance costs
  • Non-depleting TDL sensor technology
  • Reliable line lock cuvette technology

Micro i.s. 5100

SERVOFLEX Portables

Designed for the measurement of oxygen (O2) in potentially flammable gas samples. Certified to Zone 0 and Zone 1 and suitable for measuring percent levels of O2.

  • Portable analyser for percent levels of O2 (<21% O2)
  • Intrinsically safe – certified to Zone 0 and Zone 1
  • Analysis of O2 in both flammable and toxic samples
  • Ability to store up to 200 measurements
  • High-grade, long-life Li-Ion rechargeable batteries
  • Pumped or pressure driven sample gas options

MiniHD 5200

SERVOFLEX Portables

The MiniHD 5200 portable gas analyzer is a rugged, heavy duty analyzer designed to accurately measure the levels of O2, CO and CO2 within common gas mixtures.

SERVOFLEX MiniHD 5200
  • For field locations or light industrial applications
  • Measures O2, CO and CO2 in common gas mixtures
  • Portable analyser with a rugged and durable design
  • Uses digital Paramagnetic and Infrared sensing
  • Accurate measurements with no background interference
  • Intuitive, user-friendly interaction and interface

MiniMP 5200

SERVOFLEX Portables

The only truly portable battery-powered gas analyzer with MCERTS and TUV certification, offers single or dual measurement of oxygen (O2) and carbon dioxide (CO2).

  • High-performance oxygen and carbon dioxide analysis
  • Truly portable battery-powered gas analysis
  • Ideal for CEMS, with MCERTS and TUV certification
  • Accurate, long-life operation with minimal calibration
  • Combines Paramagnetic and Infrared technologies
  • Ideal for medical gas verification applications
Learn more Enquire now

MonoExact DF150E

SERVOPRO Safe Area

The MonoExact DF150E combines the reliability of Servomex’s tried and tested Coulometric oxygen sensor with a more user-friendly package.

  • Digital touchscreen and icon-driven interface
  • Tried and tested digital Coulometric oxygen sensor
  • Optimised for industrial gas applications
  • Measures oxygen across three ranges
  • Compact footprint for simple integration
  • No sensor zero calibration required
Learn more Enquire now

MonoExact DF310E

SERVOPRO Safe Area

Designed specifically for accurate measurements of oxygen in industrial gas (IG) applications.

  • Accurate measurements of oxygen and moisture
  • Designed for industrial gas applications
  • Tried and tested digital Coulometric oxygen sensor
  • Non-depleting Paramagnetic sensor option
  • Plug-and-play moisture sensor support
  • Analogue and digital communication options
Learn more Enquire now

MultiExact 4100

SERVOPRO Safe Area

A high-performance multi-gas analyzer designed to provide up to four simultaneous gas stream measurements.

SERVOPRO MultiExact 4100
  • Highly adaptable multi-gas analyzer
  • Provides up to four simultaneous measurements
  • Wide range of sensing technology options
  • Versatile solution for industrial and medical gases
  • Built-in support for moisture sensor
  • Optional advanced digital protocols

MultiExact 4200

SERVOPRO Safe Area

The MultiExact 4200 analyzes up to four gases simultaneously for Syngas and HyCO

  • For HyCO, Syngas, H2, and gas transfer applications
  • A high-specification multi-gas analyser
  • Measures up to four gas streams simultaneously
  • Combines industry-leading sensing technologies
  • Low cost of ownership and minimal maintenance
  • Intuitive-use icon-driven colour touchscreen

NanoChrome

SERVOPRO Safe Area

Incorporating the latest advances in gas sensing and signal processing methodology, the NanoChrome revolutionizes ultra-trace purity measurements.

  • Ultra-trace purity measurements in UHP gases
  • Designed for semiconductor manufacturing
  • Uses advanced Plasma Emission Detector sensor
  • Sensitive ProPeak software for high accuracy
  • Removes the need for flammable fuel gas
  • Comprehensive reporting and statistical analysis

NanoChrome ULTRA

SERVOPRO Safe Area

Using proven ultra-trace sensing, the NanoChrome ULTRA conquers the most stringent demands of the semiconductor industry, delivering a cost-effective solution compared to competing technologies.

  • The top choice for ultra-trace purity measurements
  • Designed for the semiconductor wafer industry
  • Superior measurements of ultra-high-purity gases
  • Highly specific, non-depleting PED sensing
  • ProPeak filtering for highly sensitive measurements
  • Removes the need for flammable fuel gas

Oxy 1900

SERVOTOUGH Hazardous Area

The Oxy 1900 oxygen (O2) gas analyzer sets new standards of flexibility, stability and reliability from a single, cost-effective unit.

  • Zone 1/Division 1 hazardous area rated
  • Digital Paramagnetic O2 measurements
  • Heated sample gas compartment for stability
  • Unique patented FlowCube flow sensor for enhanced safety
  • Auto-validation / calibration option reduces hands-on maintenance
  • Intelligent sample vent pressure compensation option
Learn more Enquire now

OxyExact 2200

SERVOTOUGH Hazardous Area

The high-specification OxyExact 2200 O2 analyzer offers an unrivaled combination of precision, flexibility and performance for optimum process and safety control.

OxyExact 2200 high-specification O2 analyzer
  • Rated up to Zone 1/Division 1 hazardous area
  • High-specification Paramagnetic O2 analysis
  • Designed for demanding process & safety monitoring
  • Innovative three-compartment transmitter design
  • Link up to six transmitter units to one control unit
  • Samples flammable gas mixtures up to 100% O2
Learn more Enquire now

PureGas

SERVOPRO Safe Area

A getter-based purification unit designed for the purification of carrier gases used in Gas Chromatography (GC) and other analytical applications

SERVOPRO PureGas
  • Getter-based purification unit
  • Designed for carrier gases used in Gas Chromatography
  • Reduces outlet impurity levels to ppb or below
  • Removes impurities by forming irreversible chemical bonds
  • Efficient ceramic fibre insulation
  • Built to operate continuously, without servicing

Proven oxygen sensing technologies

Our oxygen analyzer range uses proven sensing solutions that deliver accuracy, ease of use, and a long operational life.

Paramagnetic

Paramagnetic sensing is the cornerstone of O2 analysis

Servomex’s groundbreaking magneto dynamic Paramagnetic technology provides accurate and sensitive measurements of percentage levels of O2. Used by many of our industrial, portable, and multi-gas analyzers, it delivers fast and reliable oxygen measurements.

Learn more about Paramagnetic technology
Zirconia

Trusted and accurate Zirconia oxygen measurements

A reliable and proven oxygen sensing technology, Zirconia-based analyzers are  capable of providing measurements at parts-per-million (ppm) and percentage levels. The Zirconia sensor is an essential component of the SERVOTOUGH FluegasExact 2700 combustion analyzer.

Learn more about Zirconia technology
Coulometric

Coulometric sensing provides high-sensitivity measurements of oxygen

Based on a simple, non-depleting process that responds quickly to changing oxygen levels, Coulometric sensing enables the measurement of O2 at percent or parts-per-million (ppm) levels. It ensures our DF-500 range delivers the low-level detection that is essential for UHP gas applications.

Learn more about Coulometric technology
Tunable Diode Laser

Obtain fast, in-situ cross-stack measurements with TDL sensing

Tunable Diode Laser (TDL) technology offers a fast-response, accurate measurement that is highly specific to the gas of interest. This non-contact, non-depleting sensing is used in our innovative, compact SERVOTOUGH Laser 3 Plus range of analyzers.

Learn more about TDL technology

Download more information

Find out how we can support your Oxygen process with these resources.

Servomex Gas Guide issue 4

Servomex Gas Guide issue 4

ES Magazine Issue 41 Reliable solutions for industrial gas applications

ES Magazine Issue 41 Reliable solutions for industrial gas applications

Pentatec case study

Pentatec case study

SERVOPRO DF-700 Series Quick Start Guide

SERVOPRO DF-700 Series Quick Start Guide

Selected solutions for Oxygen-based applications

Our digital oxygen sensors, including Paramagnetic, Zirconia, Coulometric and TDL, provides solutions to a wide variety of processes.

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A flexible solution that supports product quality

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Servomex – gas analysis to empower a changing world

Servomex is the global leader in gas analysis, providing solutions for cleaner, more efficient industries, and enabling the manufacture of products that benefit everyone. With 70 years of expertise and research behind us, we deliver industry-changing gas analysis measurements for process control, quality, safety, emissions monitoring, and combustion efficiency.

Atlas showing Servomex loctions

Global service support delivered locally

Wherever you are in the world, our network of service engineers provides the expertise you need to keep your oxygen analyzer operating at peak performance. With state-of-the-art service centers around the globe, you’ll always have the support your process needs.

Service team meeting customer

We provide tailored service packages that support your product throughout its life

Our global service network delivers the support you need to keep your analyzer or system operating at peak performance, for total peace of mind.

Broadly, we categorise our customers into two distinct groups

Purity & Specialty

Our Purity & Specialty (P&S) team provides products, knowledge and service to market sectors including industrial and medical gases, UHP gases, and semiconductor manufacture

Learn more

Industrial process & Emissions

Our Industrial Process & Emissions (IP&E) division is responsible for our gas analysis solutions in the power generation, hydrocarbon processing and emissions monitoring markets

Learn more

Choose the experts in Oxygen gas analysis

 

We consult with you to determine what you need

Our team stays in place throughout the project, ensuring consistent communication. This starts with identifying the parameters that the system must meet to ensure optimum performance and ease of use.

We design and build your system in our dedicated facility

Our schematics and documents are reviewed by the customer until the final design is agreed upon. Our skilled engineers then assemble the system at one of our cutting-edge regional centers, with continuous evaluation throughout the build process.

We test and deliver your integrated solution

After internal testing and an intensive Factory Acceptance Test (FAT), the finished system is shipped for installation. Our expert support team can commission and calibrate the system and provide any necessary operator training.

The Servomex difference is clear from the start, all the way through to the delivery of an oxygen gas analysis system that will transform your process.


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