Infrared Gas Analyzer for Optic Analysis

Infrared Gas Analyzer for Accurate Industrial Gas Measurement

The infrared gas analyzer from Instrava is designed for high-precision industrial gas analysis using advanced NDIR (Non-Dispersive Infrared) technology. This measurement method enables accurate detection of multiple gases based on their infrared absorption characteristics, ensuring stable and interference-resistant gas monitoring.

The analyzer supports simultaneous detection of gases including carbon monoxide (CO), carbon dioxide (CO₂), methane (CH₄), ammonia (NH₃), hydrocarbons (CnHm), sulfur hexafluoride (SF₆), and sulfur dioxide (SO₂). With high measurement accuracy (≤±2% F.S.) and resolution up to 0.01%, the instrument is suitable for applications requiring precise and continuous gas concentration monitoring.

Designed for both industrial process monitoring and environmental gas analysis, the system provides fast response (T90 ≤ 10 seconds) and reliable operation in demanding industrial environments.

Optical Analysis Description  

Industrial Infrared Gas Analysis for Process and Environmental Monitoring

This industrial infrared gas analyzer is widely used in applications where accurate gas composition monitoring is essential for process optimization, environmental compliance, and safety management.

Typical application scenarios include:

  • Industrial process gas monitoring in petrochemical and manufacturing plants

  • Flue gas emission monitoring for environmental compliance

  • Air quality monitoring in wastewater treatment plants and landfill sites

  • Biogas and renewable energy projects

  • Industrial welding gas detection and gas composition analysis

  • General industrial gas monitoring and laboratory analysis

By providing real-time multi-gas measurement, the analyzer helps engineers and operators maintain stable industrial processes, optimize combustion efficiency, and ensure environmental emission standards are met.

The robust design and wide operating range allow stable operation in complex industrial conditions, making it suitable for both field monitoring and laboratory gas analysis applications.

Infrared gas analyzer displaying NO concentration at 18.1ppm.
Gas analyzer control panel showing O₂ concentration at 5.00%.

Advanced NDIR Technology with Intelligent Monitoring Functions

The Instrava infrared gas analyzer integrates advanced NDIR sensing technology with an intelligent data management system to ensure accurate and reliable gas analysis.

Key system advantages include:

  • High precision gas detection with accuracy ≤ ±2% F.S and repeatability ≤ ±1% F.S

  • Fast response time (T90 ≤ 10 seconds) for real-time monitoring

  • Automatic temperature and pressure compensation for improved measurement stability

  • Large data storage capacity (1 million records+) with customizable storage intervals

  • Touchscreen operation with automatic calibration and historical data query

The analyzer supports multiple industrial communication interfaces, including 4–20 mA analog output, RS485/RS232 digital communication, and relay outputs, enabling seamless integration with PLC, DCS, or SCADA control systems.

With its durable metal housing, low power consumption (<15W), and long service life (>6 years), the system provides a reliable solution for long-term industrial gas monitoring.

Optical Analysis Parameter  

ParameterSpecification
Product TypeInfrared Gas Analyzer
Measurement PrincipleNDIR (Non-Dispersive Infrared)
Measured GasesCO, CO₂, CH₄, NH₃, CnHm, SF₆, SO₂
Measurement Range0–1000 ppm / 5000 ppm / 1% / 100% (configurable)
Accuracy≤ ±2% F.S
Resolution0.01%
Repeatability≤ ±1% F.S
StabilityZero drift ≤ ±1% F.S / 7 days; Span drift ≤ ±1% F.S / 7 days
Response TimeT90 ≤ 10 s
Warm-up Time≤ 1 minute
Sample Gas Pressure0.05 – 0.25 MPa
Sample Gas Flow400 ± 50 ml/min
Sample Gas RequirementsDust-free, moisture-free, oil-free
Analog Output4–20 mA (optional 0–10 V)
Digital OutputRS485 / RS232
Relay OutputDual relay output
Power Supply220–240 VAC, 50/60 Hz
Power Consumption< 15 W
Operating Temperature-15°C to +45°C
Humidity≤ 90% RH
Dimensions482 × 176 × 427 mm
Weight~4.5 kg
Service Life> 6 years

Instrava OEM/ODM  

Reliable Instruments. Solutions That Fit Your Application.

Instrava is focused on delivering reliable industrial solutions through carefully curated products, application-driven optimization, and flexible customization. We select proven instruments from trusted manufacturers to ensure consistent quality, optimize solutions based on real working conditions to solve practical challenges, and provide tailored configurations to meet specific application needs.

By combining selection expertise with application understanding, Instrava helps customers reduce risk, improve efficiency, and achieve dependable results in complex industrial environments.

symbolizing trust and the beginning of a long-term partnership

Related Product Recommendations  

An infrared gas analyzer is used to measure gas concentrations using infrared absorption technology. It is widely applied in industrial process monitoring, environmental emission monitoring, air quality detection, and gas composition analysis.

An NDIR gas analyzer detects gas concentrations by measuring how gases absorb infrared light at specific wavelengths. This technology provides high accuracy, strong selectivity, and minimal interference from other gases.

Industrial infrared gas analyzers can detect gases such as CO, CO₂, CH₄, NH₃, hydrocarbons (CnHm), SF₆, and SO₂, depending on the sensor configuration and measurement range.

Industries commonly using infrared gas analyzers include:

  • Petrochemical plants

  • Environmental monitoring agencies

  • Wastewater treatment facilities

  • Landfill gas monitoring projects

  • Power plants and industrial manufacturing facilities

These industries require accurate gas monitoring to ensure safe operation and regulatory compliance.

Compared with other gas detection technologies, NDIR infrared gas analyzers provide:

  • High measurement accuracy

  • Fast response time

  • Long operational lifespan

  • Strong resistance to gas interference

These advantages make them suitable for continuous industrial gas monitoring applications.

Yes. Most industrial infrared gas analyzers support 4–20 mA, RS485, or RS232 communication, allowing integration with PLC, DCS, and SCADA systems for real-time process control and monitoring.

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Why Choose Instrava

Built on Consistency, Not Claims

Focused on Industrial Applications

We specialize in industrial analysis and detection, with a clear understanding of real-world operating environments and requirements.

Strict Product Selection Criteria

Every instrument is evaluated based on performance, stability, and application suitability—not just specifications or pricing.

Reliable Supply & Quality Consistency

We work with trusted manufacturers to ensure stable supply, consistent quality, and dependable delivery.

Practical, Experience-Based Support

Our recommendations are grounded in application understanding, helping customers avoid common issues and achieve reliable results.

Instrava is built to reduce uncertainty—so every decision you make is clearer, safer, and more reliable.

Industrial measurement scene showing a worker using a precision measuring instrument to measure and mark material on a workbench, demonstrating the practical application of measuring instruments in manufacturing and processing.
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