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Optical Analysis
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Instrava portable gas analyzers are designed for high-precision monitoring of multiple gases in industrial environments. Based on advanced NDIR (Non-Dispersive Infrared) detection technology, the analyzer provides reliable measurement of gases such as carbon monoxide (CO), carbon dioxide (CO₂), methane (CH₄), ammonia (NH₃), sulfur dioxide (SO₂), sulfur hexafluoride (SF₆), and hydrocarbons.
The instrument features an intelligent control system with a full English operation interface, making it easy for operators to perform gas analysis in field environments. Built-in temperature compensation and gas flow stabilization systems ensure accurate measurements even when environmental conditions change.
Designed for portable industrial applications, the analyzer supports fast response gas detection, automatic alarm functions, and long-term continuous operation, making it ideal for engineers and technicians who require reliable real-time gas analysis in various industrial processes.
Optical Analysis Description
Portable Multi-Gas Analysis for Environmental and Industrial Applications
These industrial portable gas analyzers are widely used in scenarios where accurate gas composition monitoring is essential for process control, environmental protection, and energy management.
Typical applications include:
Industrial process monitoring and gas composition analysis
Air quality and environmental monitoring
Biogas and landfill gas detection
Sewage treatment plants and waste management facilities
Biogas engineering projects and methane monitoring
Industrial welding processes using infrared gas detection
The analyzer supports detection of multiple gases including CO, CO₂, CH₄, NH₃, SO₂, SF₆, and hydrocarbons, helping operators quickly identify changes in gas concentration and ensure safe and efficient system operation.
Its compact structure and strong environmental adaptability allow it to operate reliably in industrial plants, environmental monitoring stations, and energy projects.


Advanced NDIR Detection Technology and Intelligent Monitoring System
Instrava portable gas analyzers integrate advanced infrared sensing technology with intelligent data processing to deliver stable and accurate gas analysis.
Key system capabilities include:
NDIR infrared measurement technology for high-precision gas detection
Automatic temperature compensation to reduce environmental measurement errors
Gas path flow stabilization system for continuous and stable analysis
Fast response detection (T90 < 15s) for real-time monitoring
Automatic acoustic and visual alarm when gas concentration exceeds limits
The analyzer also supports automatic timed data storage, enabling operators to review historical measurement data for analysis and reporting. With its large-capacity rechargeable battery, the device can operate continuously for more than 20 hours, making it suitable for extended field inspections.
An optional built-in vacuum sampling pump allows the analyzer to adapt to different gas sampling environments, improving measurement flexibility for industrial monitoring tasks.
Optical Analysis Parameter
| Parameter | Specification |
|---|---|
| Product Type | Portable Gas Analyzer |
| Measurement Principle | NDIR (Non-Dispersive Infrared) |
| Measured Gases | CO, CO₂, CH₄, NH₃, SO₂, SF₆, hydrocarbons |
| Measuring Range | CO: 0–1% / CO₂: 0–1000 ppm / CH₄: 0–2% / NH₃: 0–1% / SO₂: 0–100 ppm / Hydrocarbons: 0–5% |
| Resolution | 0.01% |
| Accuracy | < ±2% F.S |
| Repeatability | < ±1% F.S |
| Stability | Zero drift ≤ ±1% F.S / 7 days |
| Range Drift | ≤ ±1% F.S / 7 days |
| Response Time | T90 < 15 seconds |
| Sample Gas Flow | (400 ± 50) ml/min |
| Inlet Pressure | 0.05 – 0.25 MPa |
| Operating Temperature | -25°C to +55°C |
| Humidity | ≤ 90% RH |
| Power Supply | 220 VAC, 50 Hz (built-in charging protection) |
| Battery Life | > 20 hours continuous operation |
| Sample Gas Requirement | Dust-free, moisture-free, oil-free |
Instrava OEM/ODM
At Instrava, our instruments are developed with a strong focus on real industrial applications. Each product is designed to operate as a reliable component within measurement, control, and automation systems, rather than as a standalone device.
Our engineering team supports customers during product selection by evaluating process conditions, operating environments, and system requirements, ensuring stable and long-term performance in actual use.
In addition to standard configurations, Instrava offers flexible customization options, including measurement range, materials, output signals, communication interfaces, and installation methods. All custom solutions are engineered to meet industrial standards and application-specific demands.
We also support OEM projects and system integration, providing consistent product design, technical documentation, and long-term supply to ensure smooth integration and reliable operation throughout the project lifecycle.

Related Product Recommendations
Portable gas analyzers are used to measure gas concentrations in industrial environments such as biogas plants, sewage treatment facilities, landfills, and manufacturing processes. They help engineers monitor gas composition, improve process efficiency, and maintain environmental safety.
Most portable gas analyzers use NDIR infrared sensing technology to measure gas concentrations. Each gas absorbs infrared light at specific wavelengths, allowing the analyzer to determine gas composition with high accuracy and minimal interference.
Industrial portable gas analyzers can detect gases such as CO, CO₂, CH₄, NH₃, SO₂, hydrocarbons, and SF₆. The exact detection capability depends on the sensor configuration and measurement range.
High-quality portable NDIR gas analyzers typically provide accuracy within ±2% full scale and repeatability better than ±1%, ensuring reliable gas concentration measurements for industrial monitoring.
Yes. Many industrial portable gas analyzers are designed for long-term field operation and can run for more than 20 hours on a single charge, allowing extended monitoring in remote or outdoor locations.
Industries that commonly use portable gas analyzers include:
Environmental monitoring agencies
Waste management and landfill operations
Biogas and renewable energy projects
Chemical and industrial processing plants
Air quality monitoring programs
By choosing Instrava, you gain a partner with a deep understanding of industrial applications and the expertise to meet today’s operational challenges.
Our role extends beyond products—we support your success through dependable solutions and long-term commitment.
Innovation at Instrava is guided by real industrial requirements. We continuously refine our technologies to address evolving operational challenges, ensuring practical and reliable performance in demanding environments.
We provide engineering-level customization to match specific process conditions. From measurement range and materials to output signals and installation options, our solutions are configured to fit real applications.
Quality and reliability are fundamental to every Instrava product. Manufactured under strict quality control and thoroughly tested, our instruments deliver accurate, stable, and long-term performance.
Instrava combines global engineering expertise with responsive local support, ensuring our partners benefit from internationally aligned technology and timely regional service.
Our broad portfolio of measurement and control instruments enables us to address a wide range of industrial needs, providing integrated solutions from a single, reliable source.
We work closely with our partners from technical consultation to after-sales support. Our focus is on delivering solutions that create lasting value and support long-term operational success.
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