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Raman Laser Gas Analyzers

OPTIMIZED FOR INDUSTRIAL PROCESSES!

Unlike Analyzers developed for offline measurements or lab environments, Process Analyzers often require ALL of the following qualities, to effectively meet the needs of the industrial processes and applications they are applied to:

  • Speed - For closed loop control and fast alerting

  • Reliability & Simplicity - For harsh, uptime-critical environments

  • Multi-Species - Many processes require 6 or more species simultaneously

  • Precision & Range - Typically low-ppm up to 100% concentrations

  • Many Industrial Processes require fast analysis, as the data is involved in near real-time control loops or fast alerting. Gas Chromatographs can often take several minutes or more to generate a single measurement, as compared to 1 sec. analysis times for ARI Analyzers. This speed can be critical in many industrial processes.

  • Mass Spectrometers are highly capable, but this often comes at the cost of complexity and reliability. This is due to maintenance heavy components (ion source and extreme vacuum), complex computational models, and difficult repairs and servicing. Compare that to the simple optical systems of ARI Analyzers, with virtually no moving parts and trivial maintenance. This simplicity is a vital feature in harsh industrial environments, where uptime is critical and a skilled service workforce is expensive, scarce, and aging.

  • Many Industrial Processes require the simultaneous measurement of 6 or more gases and even as many as 16 to ensure quality, safety, and emissions. Many absorption methods like NDIR or TDLAS are limited in both number and type of species that can be measured. FTIR can usually overcome these issues, but struggles with core process gases like O2, N2, and H2, and also requires complex models and software. ARI Analyzers can measure 8 or 16 gas species simultaneously, including everything but noble gases.

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ARI Raman

ARI uses a Novel approach to its Raman implementation that is unlike anything else in the industry. Using its proprietary IntraCavity™ technology enables cutting-edge Gas Measurements with:

  • Increased Precision - Typically 10x-100x+ more than others at atmospheric pressures.

  • Low Power Laser - Typically 10x-100x less power and completely enclosed.

  • Discrete Detectors - One per species, yielding no complex software models and simple zero and span gas, automated calibration procedure.

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Traditional Raman

Traditional Raman Analyzers all have a similar architecture that includes a high power laser, spectrograph, expensive and delicate fiber optic probes, and chemometrics software models, resulting in:

  • Challenges With Gas - Often the system does not have enough signal to do gas phase, unless highly pressurized.

  • High Power Laser - Required to get enough signal, causing safety concerns and interlocks.

  • Complex Chemometrics - Often complicated model development and software is required.

Proprietary ValvePack

Both the Lab and Xtreme versions of the RLGA Analyzers come with our proprietary ValvePack™, which provides a lot functionality in a small and efficient package, including: stream switching, autocalibration, sample charging, and sample line backflush. All of these features can be scheduled using our analyzer software for automated sample processing. The ValvePack™ also works with our patented sample tap and particle filtration approach, to provide a fully integrated analytic solution.

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  • The ValvePack™, depending on your analyzer model, can switch between 4, 8, or in special configurations 16+ sample input streams. The order and dwell time for each stream is also configurable, for autonomous switching.

  • The ValvePack™ has the capability of connecting to a zero gas and up to three separate span gas cylinders, used for regular calibrations. These calibrations validate performance and make minor corrections to the analysis. The auto-calibration can be setup to run automatically on a consistent interval.

  • To significantly reduce the time to analysis, the ValvePack™ enables sample line charging, where a soon to be sampled line is filled with a fresh sample, while another is being actively analyzed. This behavior is also configurable in the software and can be automated.

  • After a sample line has been analyzed, the ValvePack™ can send high-pressure dry instrument air or nitrogen, back down the sample line to clean it and remove any obstructions. This can be configured to be performed automatically after every line is analyzed.