Oxygen Analyzers for Industrial, Lab, and Research Applications

For over 30 years, we have established ourselves as a trusted provider of reliable and cost-effective oxygen analyzers and transmitters. Building on this legacy, our portfolio has grown to include a comprehensive range of instruments, such as trace and percent oxygen analyzers, safety monitors, and oxygen deficiency monitors. These cutting-edge instruments offer precise and continuous measurements, which are essential for various industries, including industrial, commercial, government, and educational sectors.

Whether it’s monitoring oxygen levels in industrial processes, ensuring safety in commercial establishments, or supporting research in educational institutions, our instruments provide accurate and reliable data. Additionally, our products are widely used in government sectors, where precise oxygen measurement is critical for various applications. Got a question? Contact us today.

Our Portfolio of Oxygen Analyzers

Trace oxygen analyzers
Percent oxygen analyzers
Portable oxygen analyzers
Oxygen deficiency monitors

Industrial Applications

Accurate oxygen measurements are crucial for various industrial processes. We serve industries such as:

Aerospace
Biotechnology
Chemical
Food and beverage
Medical manufacturing
Petrochemical
Pharmaceutical
Pulp and paper
Water and wastewater treatment
Specific applications include:
Food packaging
Glove boxes and environmental chambers
Laboratories
Manufacturing
Oven applications (curing/heat treating)
Welding

Oxygen-Application-Questionnaire

What Is an Oxygen Analyzer?

An oxygen analyzer continuously measures oxygen concentration in gases to support process control, product quality, gas purity verification, environmental monitoring, and personnel safety.

Depending on the application, oxygen analyzers measure:

Trace oxygen (ppm)
Percent oxygen (%)
Oxygen deficiency
Gas purity
Process atmosphere

Why Continuous Oxygen Monitoring?

Continuous monitoring provides advantages over periodic sampling:

Detect contamination immediately
Improve process control
Reduce manual testing
Increase product consistency
Improve personnel safety
Protect catalysts and equipment
Reduce operating costs
Support regulatory compliance

Industries Served

Semiconductor

Monitor oxygen in specialty gases, bulk gas systems, glove boxes, and ultra-high-purity applications.

Industrial Gas Production

Verify oxygen purity in nitrogen, argon, helium, hydrogen, and specialty gases.

Chemical & Petrochemical

Protect catalysts, control inerting, and improve reaction efficiency.

Pharmaceutical

Monitor inert gas blanketing, manufacturing processes, and packaging operations.

Food & Beverage

Verify oxygen levels during modified atmosphere packaging (MAP), nitrogen blanketing, and product storage.

Heat Treating & Welding

Control furnace atmospheres and shielding gases to reduce oxidation and improve product quality.

Laboratories & Research

Measure trace oxygen in glove boxes, anaerobic chambers, environmental chambers, and analytical laboratories.

Process Insights_Alpha Omega Instruments

Alpha Omega Instruments Oxygen Monitors | Process Insights

OXYGEN ANALYZERS RESOURCES AND MANUALS

DOWNLOAD: AOI Configurator 20251107 – Rev 5.4

RMA

Need service or calibration for your oxygen analyzer? No problem. We are ready to assist you with any technical or service-related inquiries.

Just complete our Oxygen Monitor RMA.

SALES | TRAINING INQUIRIES

AMERICAS: info.americas@process-insights.com

EMEAI (includes India): info.emeai@process-insights.com

APAC: info.apac@process-insights.com

CHINA: info.cn@process-insights.com

SERVICE | TECHNICAL INQUIRIES ONLY

Which Oxygen Analyzer Is Right for Your Application?

Your Requirement	Recommended Product
Continuous trace oxygen measurement	Series 3000™
Portable trace oxygen measurements	Series 3520™
Continuous percent oxygen	Series 2000™
Portable percent oxygen	Series 2520™
PLC/DCS integration	Series 3500™ / 3510™
Oxygen deficiency safety monitoring	Series 1300™
General-purpose percent oxygen	OXY-SEN™
Zirconia high-temperature applications	ZRO 2000™

COMPARISON CHART

AOI Product Series Comparison Chart

Product Series	1000	1300	2000	3000	3500	3510	3520	OXY-SEN
Oxygen Ranges
0-10,000 PPM				X
0-5,000 PPM					X	X
0-1,000 PPM							X
0-100%			X					X
0-30%	X	X
Multiple Range Capabilities			3	4
Confined Space Safety Monitors	X	X
Features & Options
Analog Recorder Outputs	2	2	2	2	1	1		2
Number of Alarms	3	9	3	3
Oxygen Alarm Relays	3	9	3	3
AC/DC Powered	X	X	X	X		X		X
AC Powered with Optional Battery Operation							X
Loop Powered Transmitter (no display)					X
Blind Transmitter					X	X
Standard RS232		X
Optional Remote Sensor		X
Optional Sampling Systems Components			X	X	X	X	X	X

Updated_AOI_Comparison_Chart.html HTML

Our Oxygen Analyzer Portfolio

Trace Oxygen Analyzers

Measure oxygen from sub-ppm levels to process concentrations for:

Industrial gases
Semiconductor manufacturing
Glove boxes
Heat treatment
Chemical processing
Hydrogen production

Percent Oxygen Analyzers

Monitor oxygen concentrations from low percentages through ambient air.

Applications include:

Process monitoring
Manufacturing
Research
Packaging
Controlled atmospheres

Oxygen Transmitters

Integrate continuous oxygen measurements directly into PLC, DCS, or SCADA systems.

Oxygen Deficiency Monitors

Protect personnel in enclosed areas where inert gases may reduce oxygen concentrations.

Typical applications:

Nitrogen generation
Cryogenic storage
Laboratories
Semiconductor fabs
Research facilities

Zirconia Oxygen Analyzers

Ideal for elevated-temperature combustion and process applications requiring zirconia sensing technology.

Frequently Asked Questions

What is an oxygen analyzer?

An oxygen analyzer continuously measures oxygen concentration in gases to support process control, safety, product quality, and gas purity verification.

What is the difference between a trace oxygen analyzer and a percent oxygen analyzer?

Trace oxygen analyzers measure oxygen at very low concentrations (typically ppm), while percent oxygen analyzers measure oxygen from low percentages up to 100%.

When should I use an oxygen deficiency monitor?

Oxygen deficiency monitors are used wherever inert gases such as nitrogen, argon, or helium could reduce breathable oxygen levels and create a personnel safety hazard.