
RLGA Extreme Raman Analyzer – Advanced Multi-Stream, Multi-Component Gas Analysis
The RLGA Extreme Raman Analyzer sets a new standard in industrial gas analysis, combining the speed, sensitivity, and reliability of intra-cavity Raman spectroscopy with a rugged design built for demanding process environments. Designed for real-time, multi-component measurement, the RLGA Extreme provides operators with accurate, actionable data for process optimization, safety, and environmental compliance.
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Whether your operation involves chemical production, steam methane reforming (SMR), ammonia production, bioenergy, sulfur recovery units (SRUs), or refining and petrochemical processes, the RLGA Extreme is engineered to deliver fast, precise, and reliable measurements across multiple process streams.

Fast, Real-Time Analysis
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Many industrial processes require rapid measurement to support near real-time control loops and fast alerting. Traditional Gas Chromatographs (GCs) can take several minutes or more to produce a single measurement, which may not be fast enough for critical process decisions. In contrast, ARI Analyzers deliver measurements in as little as 1 second, giving operators near-instant insights for optimized process control.
Compared to Mass Spectrometers, which are highly capable but often complex and maintenance-intensive due to components like ion sources, extreme vacuum systems, and computational models, ARI Analyzers offer simpler, more reliable performance. With virtually no moving parts and minimal maintenance requirements, the RLGA Extreme is ideal for harsh industrial environments, where uptime is critical and skilled service personnel are limited.

Multi-Stream, Multi-Component Capability
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Many industrial processes require the simultaneous measurement of 6 or more gases, and in some cases up to 16 components, to ensure product quality, safety, and regulatory compliance. Traditional absorption-based methods, like NDIR or TDLAS, are often limited in the number and type of gases they can measure. While FTIR analyzers can overcome some of these limitations, they struggle with core process gases such as Oâ‚‚, Nâ‚‚, and Hâ‚‚ and often rely on complex models and software.
The RLGA Extreme Raman Analyzer solves this problem with the ability to measure up to 16 gas species simultaneously, including all major process gases except noble gases. With multi-stream capability allowing seamless switching between up to 8 process streams, the RLGA Extreme provides a complete, real-time view of complex industrial processes, ensuring optimized efficiency, safety, and emissions compliance.
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Proprietary ValvePack™ for Automated Sample Handling
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Both the Lab and Xtreme versions of the RLGA Analyzers feature our proprietary ValvePack™, a compact and efficient system that combines multiple critical functions in a single package, including:
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Stream Switching – Quickly toggle between multiple process streams.
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Autocalibration – Maintain measurement accuracy with minimal manual intervention.
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Sample Charging and Backflush – Automate sample introduction and cleaning for reliable results.
All ValvePack™ functions can be scheduled using RLGA Analyzer software, enabling fully automated sample processing. Additionally, the ValvePack™ integrates seamlessly with our patented sample tap and particle filtration system, delivering a fully integrated, low-maintenance analytic solution for demanding industrial environments.
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Applications
The RLGA Extreme Raman Analyzer is ideal for a wide range of industrial applications, including:
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Chemical Production – Monitor critical gas streams to optimize reactions, maintain product quality, and ensure safety.
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Steam Methane Reforming (SMR) – Track hydrogen, methane, and other key components in real time to improve process efficiency.
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Ammonia Production – Maintain precise control over nitrogen and hydrogen streams for optimized yield and safety.
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Bioenergy – Analyze multi-component gas streams from biomass or waste-to-energy processes for performance and emissions monitoring.
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Refineries and Petrochemical Plants – Monitor multiple gas streams to maintain process stability and regulatory compliance.
With multi-stream and multi-component measurement, the RLGA Extreme provides actionable, real-time insights across these diverse industries, enabling safer, more efficient, and environmentally compliant operations.
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Multi-Species: Select 8 or more from CO, CO2 , O2 , N2 , H2S, CH4 , C2H6 , C3H8 , C4H10 , C5H12 , CxHy, H2S, DME, C2H5OH, SO2 , H2O, H2 , NH3 , and many others…
Why Choose the RLGA Extreme as Your Raman Gas Analyzer?
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The RLGA Extreme stands out due to its combination of:
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Speed – Near-instantaneous measurements in 1 second.
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Accuracy – High sensitivity and multi-component capability via intra-cavity Raman technology.
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Reliability – Simple optical design with virtually no moving parts and minimal maintenance.
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Versatility – Ability to monitor up to 8 streams and 16 gas species simultaneously.
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Automation – Proprietary ValvePack™ enables stream switching, autocalibration, and automated sample handling.
This combination makes the RLGA Extreme the ideal solution for industrial processes where uptime, safety, and compliance are critical.

ARI’s cutting edge benchtop analyzer is designed for application development in universities and research centers, along with light industrial applications. Based on Raman Spectroscopy, this laser-based analyzer provides value through enhanced visibility into your processes.
Unlock the power of precise, real-time gas measurement with the RLGA Extreme Raman Analyzer. Whether you are searching for a Raman Gas Analyzer, a Gas Analyzer, or an Intra Cavity Raman Gas Analyzer, the RLGA Extreme delivers unmatched speed, accuracy, and reliability for multi-stream, multi-component processes.
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Contact our team today to learn how the RLGA Extreme can optimize your operations, improve safety, and reduce emissions.
