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:
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Industrial process gas monitoring in petrochemical and manufacturing plants
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Flue gas emission monitoring systems
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Air quality monitoring in wastewater treatment plants and landfill sites
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Biogas and renewable energy monitoring projects
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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:
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High-precision infrared sensors with fast response and strong long-term stability
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Automatic temperature compensation for accurate measurement under varying environmental conditions
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Adjustable alarm thresholds with sound/light alarm and relay outputs
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Automatic data storage with configurable intervals and historical data analysis
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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
Tailored Sourcing & Customization: Getting You the Exact Product You Need
As your trusted supplier and sourcing partner, we bridge the gap between your custom requirements and China’s vast manufacturing capabilities.
Finding the right product in a massive supply chain can be challenging. That is where we step in.
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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:
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High measurement accuracy
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Fast response time
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Strong resistance to cross-gas interference
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Long operational lifespan
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Reliable performance for continuous industrial monitoring
Where are NDIR gas analyzers commonly used?
NDIR analyzers are widely used in:
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Petrochemical plants
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Industrial manufacturing processes
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Environmental monitoring stations
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Wastewater treatment facilities
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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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