Southland Sensing oxygen analyzers provide accurate exhaust oxygen measurement for automotive engine development, emissions testing, combustion analysis, dynamometer testing, engine diagnostics, and catalyst performance verification. Our analyzers help engineers optimize air-fuel ratio, improve combustion efficiency, reduce emissions, and validate engine performance.
Internal combustion engine performance depends on maintaining the proper air-fuel ratio throughout every operating condition. Measuring residual oxygen in the exhaust provides valuable insight into combustion efficiency, fuel mixture, catalyst performance, and overall engine health. Combined with measurements of carbon monoxide, carbon dioxide, hydrocarbons, and nitrogen oxides, oxygen analysis helps engineers optimize combustion, improve fuel economy, reduce emissions, and diagnose engine performance issues. Oxygen measurement is also widely used in emissions laboratories, dynamometer facilities, engine development programs, and inspection stations to verify regulatory compliance and support engine calibration.
Чому важливий моніторинг рівня кисню: Continuous or spot-check oxygen measurement in exhaust streams provides direct insight into combustion efficiency, air-fuel ratio accuracy, and catalyst function — enabling engineers to optimize engine performance, reduce emissions, and validate compliance with increasingly stringent automotive emissions standards.
The OMD-480 is a rugged portable oxygen analyzer with an intuitive menu-driven interface and USB data logging. Ideal for exhaust oxygen measurements at the tailpipe, catalyst inlet and outlet testing, engine dynamometer applications, and combustion analysis during engine development, diagnostics, and emissions verification.
✓ Built for Combustion & Emissions Monitoring
The OMD-21 is an economical, portable percent oxygen analyzer ideal for routine exhaust gas testing, combustion optimization, and emissions verification. Used alongside carbon dioxide measurements, it helps evaluate combustion efficiency during engine development, diagnostics, and stationary engine testing.
Accurate exhaust gas analysis requires a clean, representative sample. Depending on the application, sample conditioning may include particulate filtration, moisture management, and temperature reduction to protect the sensor and ensure stable, repeatable measurements.
Southland Sensing can assist with analyzer selection and sample system design for engine test cells, exhaust gas analysis, and combustion testing applications.
Fixed ambient oxygen monitors should be installed in any enclosed engine test cell or chassis dynamometer bay where exhaust gas accumulation or asphyxiating inert gas displacement is a potential hazard. Our monitors provide continuous room-air O₂ measurement with audible and visual alarms at user-configurable setpoints (typically 20.0% and 19.5% O₂) to help protect personnel and comply with facility safety requirements.
Зверніться до нашого Посібник із сумісності датчиків кисню (O₂) to confirm the correct sensor for your analyzer model and exhaust gas conditions.
Residual oxygen concentration in the exhaust stream is a direct indicator of air-fuel ratio and combustion completeness. Excess oxygen indicates a lean-running condition, while near-zero oxygen in the exhaust alongside high CO or HC typically indicates rich operation. Monitoring oxygen across the catalyst inlet and outlet also gives a direct indication of catalyst efficiency and light-off behavior during cold-start and warm-up test cycles.
Our electrochemical oxygen sensors are designed for conditioned gas samples and are not intended for direct insertion into hot, unconditioned exhaust streams. A sample conditioning system that reduces temperature, removes condensate and particulates, and controls flow is required upstream of the analyzer. Please contact our applications team to discuss sample conditioning requirements for your specific exhaust gas conditions.
Yes. Both the OMD-480 portable and the OMD-150 wall mount analyzer are well suited for spot checking and continuous monitoring of oxygen in stationary combustion engine and generator exhaust streams for emissions compliance and combustion efficiency purposes.
Yes. Several models support Modbus RTU or MODBUS ASCII bi-directional digital protocols, allowing direct integration with test cell data acquisition and control systems. Contact us to confirm which models match your system’s communication requirements.
Reliable oxygen monitoring is not optional in automotive emissions and exhaust testing — it enables combustion optimization, confirms catalyst efficiency, supports emissions compliance, and keeps test cell personnel safe. Southland Sensing offers a complete range of instruments for every oxygen measurement point in the automotive test and development environment.
Наші інженери з технічного застосування допомагають із вибором датчиків, їхнім монтажем та питаннями щодо роботи у вибухонебезпечних зонах.
Our application engineers are available to assist with analyzer selection, sample conditioning design, installation guidance, and application-specific requirements for engine development, combustion analysis, and exhaust gas monitoring.
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