Why CRDS Gas Analyzers are Critical for High Purity Gas

With a long history in industrial gas, medical gas, and chemical processing, the TIGER OPTICS^™ Cavity Ring-Down Spectroscopy (CRDS) gas analyzers allow for the identification of moisture and other rogue contaminants in process gas streams, including bulk, specialty, reactive, corrosive, and inert gases.

CRDSis a sensitive and accurate analytical technique for detecting and measuring trace gases and sample isotopes. It is a non-destructive method for molecule absorption spectra quantitative measurements.

The CRDSmethod measures the light absorption rate by a gas sample housed in a highly reflective cavity. A laser pulse is delivered into the cavity, and the light bounces back and forth between two highly reflective mirrors at either end.

The gas sample in the cavity absorbs the light as it bounces back and forth, gradually reducing the light’s intensity. The concentration of the gas species in the sample is calculated by measuring the time it takes for the light to decline, or “ring down,” to a predefined threshold level.

New T-I Max Air GHG Environmental Monitoring Solution

Greenhouse Gas Monitoring at its Best

Process Insights’ new T-I Max AIRTM GHG CRDSGas Analyzer will improve environmental monitoring. This state-of-the-art analyzer is the best option for reporting mole fraction and tracking atmospheric greenhouse gases since it provides continuous, real-time CO₂, CH₄, and H₂O monitoring.

The T-I Max AIR satisfies strict traceability and precision standards essential for major national reference labs by utilizing the TIGER OPTICS^™ CRDS Technology, a sensitive measurement technique that satisfies the requirements and standards of the World Meteorological Organization.

It calculates atmospheric concentrations in parts-per-billion (ppb) for every analyte with remarkable accuracy.

Applications

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Gas Quality Control

Hydrogen Fuel Cells

Research and Development

Air Separation Units for Electronic Gases

Truck Fill

Pre-Purifier Bulk Gas Monitoring

Unmanned Operations

T-I MAX X2_X3 AMC Monitoring Solution

Simultaneously Monitor HC, HF, and NH₃ in Real-Time

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These next-generation trade gas analyzers enable the detection and continuous monitoring of airborne molecular contaminants in FOUP cleaning tools, reticle nests, semiconductor cleanrooms, and sub-fab environments.

When the device’s final test stage reveals catastrophic product performance or yield loss, users can spend much time “looking” for airborne molecular contaminants. Alternatively, users can use the T-I Max^™ series analyzers to find and track these invisible defect generators, frequently found in and around equipment, personnel, wafer carriers, and cleanroom bays.

National Institute of Standards and Technology (NIST)

The National Institute of Standards and Technology (NIST) used theTIGER OPTICS HCl analyzer to create its HCl standard andto produce HCl standards via gravimetric preparation.

This method dilutes pure HCl gas with a carrier gas, often nitrogen, to produce a sample with a known HCl concentration. The sample is then sent through a TIGER OPTICS HCl analyzer to confirm its concentration.

NIST used the HCl analyzer to properly quantify the concentration of HCl in the gas mixture, allowing them to prepare the HCl standards accurately. The TIGER OPTICS HCl analyzer's great sensitivity and accuracyensured the standards were of the highest quality, which is critical for precise measurements in various applications.

In another study, NIST researchers assessed the effectiveness of a CRDS apparatus for measuring methane (CH₄) in natural gas samples. They discovered that the equipment was extremely accurate and precise, with a measuring uncertainty of less than 0.1 % over a range of concentrations.

How Process Insights is Different from the Competitors

Measurement Principle: The gas analyzers employ CRDS, which analyzes the decay period of light resonating inside an optical cavity filled with the gas being studied. Unlike other competitor’s solutions, this time-based principle allows for absolute precision while remaining insensitive to numerous noise sources.

Detection Limit: The CRDS systems have a lower detection limit than many of the competitors’ gas analyzers due to the optical cavity’s absorption amplification, making them more suitable for monitoring trace and ultra-trace amounts of gases.

Calibration: The CRDS gas analyzers are factory-calibrated against NIST-traceable standards and are free of long-term drift, eliminating the need for regular field calibrations. Competitors’ gas analyzers require recalibration at regular intervals to compensate for drift.

Specificity: The CRDS analyzers use narrow-linewidth lasers as light sources, making them highly selective to the target analyte and free of typical interferences. The competitors’ gas analyzers frequently require sample conditioning to remove interfering species or additional calibration steps to compensate for their effect on concentration determination.

The HALO Max QCL

This video demonstrates how quick the CRDS technology is.

Pocess Insights_HALO Max QCL Response Time Video Purifier Breakthrough SimulationPlay

Video Credit: Process Insights

Fast Spark Installation

This video showshow fast Spark's installation procedure is.

Process Insights_Spark CRDS Analyzer - Easy Setup VideoPlay

Video Credit: Process Insights

Software for the CRDS Analyzers

Speed Software

A new CRDS analyzer performance enhancement is now available from Process Insights. The Speed+^™ Analyzer Performance Upgrade Software uses the new intelligent dynamic data processing to optimize performance by automatically and instantly adjusting the analyzer’s response.

Serani Max Interface Software

The Serani^™ Max Analyzer Interface Software enables remote access to the latest CRDS analyzers from desktops or laptops. The Windows-based software package allows users to control the system from the desk.

Serani Software

The Serani^™ Analyzer Interface Software allows users to access older platform analyzers remotely from any computer or laptop. The Windows-based software package interfaces with the analyzer via RS-232 or Ethernet, providing full system control and data collection.

The CRDS Gas Analyzers for High Purity Applications

HALO KA™ H₂O. TIGER OPTICS™ ppt-level Moisture Detection CRDS Analyzer. Image Credit: Process InsightsHALO KA Max™ H₂O. TIGER OPTICS™ CRDS Analyzer for ppt-level Moisture Detection. Image Credit: Process InsightsHALO KA Max™ CH₄ TIGER OPTICS™ CRDS Analyzer for Sub-ppb Methane Detection in Bulk Gases. Image Credit: Process InsightsHALO KA Max™ NH₃ TIGER OPTICS™ CRDS Analyzer for ppt-level Ammonia Detection in Bulk Gases. Image Credit: Process InsightsHALO Max QCL™ CO TIGER OPTICS™ CRDS Analyzer for ppt-level Carbon Monoxide Analysis. Image Credit: Process InsightsHALO Max QCL™ CO₂ TIGER OPTICS™ CRDS Analyzer for ppt-level Carbon Dioxide Analysis. Image Credit: Process InsightsCustom CRDS Gas Analysis Solutions. Turnkey Systems Integration. Image Credit: Process InsightsGO-cart™ TIGER OPTICS™ Mobile Cart for AMC Monitoring Analyzers. Image Credit: Process InsightsHALO™ 3 CH₂O TIGER OPTICS™ Trace-Level Formaldehyde Detection CRDS Analyzer. Image Credit: Process InsightsHALO™ 3 CO TIGER OPTICS™ PPB-Level Carbon Monoxide Detection CRDS Analyzer. Image Credit: Process InsightsHALO™ 3 CO₂ TIGER OPTICS™ PPB-Level Carbon Dioxide Detection CRDS Analyzer. Image Credit: Process InsightsHALO™ 3 D₂O/HDO TIGER OPTICS™ Trace-Level Heavy Water Detection CRDS Analyzer. Image Credit: Process InsightsHALO™ 3 H₂O TIGER OPTICS™ Trace Moisture CRDS Analyzer for Ultra-High-Purity Gases. Image Credit: Process InsightsHALO™ 3 CH₄ TIGER OPTICS™ Trace Methane Analyzer for High-Purity Gases. Image Credit: Process InsightsHALO™ 3 HCl TIGER OPTICS™ Trace Hydrogen Chloride Detection CRDS Analyzer. Image Credit: Process InsightsHALO™ 3 NH₃ TIGER OPTICS™ Trace-Level Ammonia CRDS Analyzer. Image Credit: Process InsightsHALO 3 HF TIGER OPTICS™ Trace-level hydrogen fluoride gas analyzer. Image Credit: Process InsightsHALO™ H₂ TIGER OPTICS™ CRDS Analyzer for ppb-level Hydrogen Detection. Image Credit: Process InsightsHALO™ H₂O in N₂O TIGER OPTICS™ Trace Moisture CRDS Analyzer in Pure Nitrous Oxide. Image Credit: Process InsightsHALO™ OK/OK+ TIGER OPTICS™ Trace & Ultra-Trace Level Oxygen CRDS Analyzer. Image Credit: Process InsightsHALO™ LP H₂O TIGER OPTICS™ Trace Moisture in Hydride Gases CRDS Analyzer. Image Credit: Process InsightsHALO™ RP TIGER OPTICS™ CRDS Analyzer for Trace H₂O and HF for Sub-Atmospheric Pressure. Image Credit: Process InsightsHALO™ QRP TIGER OPTICS™ CRDS Analyzer for Moisture Monitoring in Low Pressure Chambers. Image Credit: Process InsightsSpark™ H₂O TIGER OPTICS™ PPB-Level Trace Moisture Detection CRDS Analyzer. Image Credit: Process InsightsSpark™ H₂O in CO₂ TIGER OPTICS™ Trace Moisture Detection CRDS Analyzer in Pure Carbon Dioxide. Image Credit: Process InsightsSpark™ CH₄ TIGER OPTICS™ CRDS Trace-Level Methane Detection Analyzer. Image Credit: Process InsightsSpark™ C₂H₂ TIGER OPTICS™ CRDS Trace-Level Acetylene Detection Analyzer. Image Credit: Process InsightsSpark™ CO₂ TIGER OPTICS™ CRDS Trace-Level Carbon Dioxide Detection Analyzer. Image Credit: Process InsightsSpark+™ CO TIGER OPTICS™ CRDS Trace-Level Carbon Monoxide Detection Analyzer. Image Credit: Process InsightsSpark Max™ CO₂ TIGER OPTICS™ CRDS Trace-Level Carbon Dioxide Detection Analyzer. Image Credit: Process InsightsPrismatic 3™ TIGER OPTICS™ Multi-Species CRDS Gas Analyzer. Image Credit: Process InsightsPrismatic 3+™ TIGER OPTICS™ PPB Multi-Species CRDS Gas Analyzer. Image Credit: Process InsightsT-I MAX™ AIR GHG TIGER OPTICS™ CRDS Analyzer for Greenhouse & Air Quality Gas Monitoring. Image Credit: Process InsightsT-I MAX™ HCl TIGER OPTICS™ CRDS Analyzer for Continuous Monitoring of Airborne Molecular Contaminants. Image Credit: Process InsightsT-I MAX™ HF TIGER OPTICS™ CRDS Analyzer for Continuous Monitoring of Airborne Molecular Contaminants. Image Credit: Process InsightsT-I MAX™ NH₃ TIGER OPTICS™ CRDS Analyzer for Airborne Molecular Contaminants in Semiconductor Cleanrooms. Image Credit: Process InsightsT-I MAX™ CEM TIGER OPTICS™ CRDS Analyzer for Continuous Monitoring of Airborne Molecular Contaminants. Image Credit: Process InsightsALOHA+H₂O™ TIGER OPTICS™ PPB-Level Moisture Detection in Ultra-Pure Ammonia CRDS Analyzer. Image Credit: Process InsightsCO-REKT™ TIGER OPTICS™ CRDS Analyzer for Trace Level Impurity for Hydrogen. Image Credit: Process InsightsT-I MAX X2_X3 TIGER OPTICS™ Next Gen AMC Monitors