Choosing the Right Optical Gas Analysis Solution: A Complete Industry Guide
Selecting the right gas analysis system is crucial for ensuring safety, compliance, and efficiency across multiple industries. Optical gas analysis...
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NDIR Gas Analyzer for Infrared Gas Analyzer
NDIR Gas Analyzer for High-Precision Industrial Gas Measurement
The NDIR gas analyzer from Instrava uses advanced Non-Dispersive Infrared (NDIR) technology to provide accurate and reliable gas concentration measurement in industrial environments. This optical detection method analyzes gases based on their unique infrared absorption characteristics, ensuring high sensitivity, strong stability, and long-term measurement accuracy.
The analyzer supports monitoring of multiple industrial gases including CO, CO₂, CH₄, NH₃, hydrocarbons (CnHm), SF₆, and SO₂, making it suitable for a wide range of industrial gas analysis applications. With measurement accuracy up to ±2% F.S. and resolution of 0.01%, the system delivers reliable results for continuous monitoring.
Designed for industrial process monitoring and environmental gas detection, the analyzer provides fast response time (T90 ≤ 15 seconds) and stable operation even in demanding industrial environments.
Optical Analysis Description
Industrial NDIR Gas Analysis for Process and Environmental Monitoring
This industrial NDIR gas analyzer is widely used in industries where precise gas composition monitoring is required for process control, emission monitoring, and safety management.
Typical application scenarios include:
Industrial process gas monitoring in petrochemical and manufacturing plants
Flue gas emission monitoring systems
Air quality monitoring in wastewater treatment plants and landfill sites
Biogas and renewable energy monitoring projects
Industrial gas analysis in laboratories and production lines
By delivering real-time multi-gas measurement, the analyzer helps operators maintain stable process control, optimize combustion efficiency, and ensure environmental compliance.
The embedded installation design allows the analyzer to be easily integrated into industrial control panels or monitoring systems, making it suitable for automated industrial monitoring applications.
Advanced NDIR Technology with Intelligent Monitoring Functions
The Instrava NDIR gas analyzer integrates advanced infrared sensing technology with intelligent control functions to provide efficient and reliable gas monitoring.
Key system advantages include:
High-precision infrared sensors with fast response and strong long-term stability
Automatic temperature compensation for accurate measurement under varying environmental conditions
Adjustable alarm thresholds with sound/light alarm and relay outputs
Automatic data storage with configurable intervals and historical data analysis
Large display with full English menu for easy configuration and operation
The analyzer also supports industrial communication interfaces including RS485, RS232, and 4–20 mA analog output, allowing seamless integration with PLC, DCS, or SCADA monitoring systems.
With low power consumption (≤10W), compact size, and durable industrial design, the analyzer is ideal for continuous gas monitoring in industrial environments.
Optical Analysis Parameter
| Parameter | Specification |
|---|---|
| Product Type | NDIR Gas Analyzer |
| Measurement Principle | NDIR (Non-Dispersive Infrared) |
| Measured Gases | CO, CO₂, CH₄, NH₃, CnHm, SF₆, SO₂ |
| Measurement Range | CO: 0–1% / CO₂: 0–1000 ppm / CH₄: 0–2% / NH₃: 0–1% / SF₆: 0–100 ppm / CnHm: 0–1% / SO₂: 0–5% |
| Accuracy | ≤ ±2% F.S |
| Resolution | 0.01% |
| Repeatability | ≤ ±1% F.S |
| Stability | Zero drift ≤ ±1% F.S / 7 days |
| Range Drift | ≤ ±1% F.S / 7 days |
| Response Time | T90 ≤ 15 s |
| Storage Capacity | 65,536 records |
| Storage Interval | Adjustable by seconds |
| Analog Output | 4–20 mA (optional 0–10 V) |
| Digital Communication | RS485 / RS232 |
| Relay Output | Dual relay output |
| Power Supply | 220–240 VAC, 50/60 Hz |
| Power Consumption | ≤ 10 W |
| Operating Temperature | -25°C to +55°C |
| Humidity | ≤ 90% RH |
| Sample Gas Flow | 400 ± 50 ml/min |
| Sample Gas Pressure | 0.05 – 0.25 MPa |
| Sample Gas Requirement | Dust-free, moisture-free, oil-free |
| Installation | Embedded installation |
| Dimensions | 145 × 145 × 282 mm |
| Cutout Size | 135 × 135 mm |
| Weight | ~2.6 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.
What is an NDIR gas analyzer used for?
An NDIR gas analyzer is used to measure gas concentrations using infrared absorption technology. It is widely used for industrial process monitoring, flue gas analysis, air quality monitoring, and environmental emission testing.
How does an NDIR gas analyzer work?
An NDIR analyzer detects gas concentration by measuring the absorption of infrared light at specific wavelengths. Each gas absorbs infrared energy differently, allowing the analyzer to accurately determine gas concentration.
What gases can an NDIR gas analyzer detect?
Depending on configuration, NDIR gas analyzers can measure gases such as CO, CO₂, CH₄, NH₃, hydrocarbons, SO₂, and SF₆, making them suitable for multi-gas industrial monitoring applications.
What are the advantages of NDIR gas analyzers?
Key advantages of NDIR gas analyzers include:
High measurement accuracy
Fast response time
Strong resistance to cross-gas interference
Long operational lifespan
Reliable performance for continuous industrial monitoring
Where are NDIR gas analyzers commonly used?
NDIR analyzers are widely used in:
Petrochemical plants
Industrial manufacturing processes
Environmental monitoring stations
Wastewater treatment facilities
Landfill gas monitoring systems
Can NDIR gas analyzers integrate with industrial control systems?
Yes. Most industrial NDIR gas analyzers support 4–20 mA analog output, RS485 or RS232 communication, enabling integration with PLC, DCS, and SCADA systems for automated monitoring and process control.
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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.
