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Optical Analysis
UV Gas Analyzer
Instrava provided the uv gas analyzer based on advanced DOAS (Differential Optical Absorption Spectroscopy) technology delivers highly accurate, real-time measurement of multiple gases in complex industrial environments.
Designed for continuous emission monitoring systems (CEMS) and industrial process control, this analyzer supports simultaneous detection of SO₂, NO, NO₂, NH₃, CO, CO₂, O₂, H₂S, Cl₂, O₃, HCl and more, making it an ideal solution for power plants, coal chemical industries, and environmental compliance projects.
With fast response (<10s), no warm-up required, and low operational cost, it enables engineers and environmental managers to make fast, reliable decisions while ensuring regulatory compliance and process optimization.
Optical Analysis Description
Multi-Gas Monitoring Capability for Complex Industrial Applications
This industrial UV gas analyzer integrates DOAS + PLS chemometric algorithms, ensuring high selectivity and accurate measurement even in cross-interference gas environments.
Key capabilities:
Simultaneous detection of multiple flue gases and toxic gases
Flexible configuration for custom gas measurement ranges
High stability with low drift and excellent repeatability
Ideal for continuous stack emission monitoring and process gas analysis
Typical application scenarios:
Environmental monitoring (pollution source emission monitoring)
Coal-fired power plants & boiler flue gas analysis
Coal chemical and petrochemical processes
Industrial combustion optimization
This makes it a reliable UV DOAS gas analyzer for emission monitoring systems in demanding industrial environments.
Reliable Performance & System Integration Advantages
Engineered for industrial integration, this online UV gas analyzer system offers stable long-term operation and flexible connectivity for automation systems.
Core performance advantages:
High accuracy: Linear error ≤ ±1.5% F.S
Fast response time: T90 < 10 seconds
No preheating required: Immediate operation for faster deployment
Low drift design: Ensures long-term measurement stability
System integration features:
Multiple outputs: 4–20mA, RS485, RS232, GPRS
Supports PLC / DCS / SCADA integration
Multi-channel I/O: relay outputs & analog inputs
Optimized for continuous industrial monitoring systems
Industrial reliability:
Wide humidity tolerance up to 95% RH
Stable operation in variable process environments
Low maintenance and reduced lifecycle cost
Optical Analysis Parameter
| Parameter | Specification |
|---|---|
| Measurement Technology | UV DOAS |
| Measured Gases | SO₂, NO, NO₂, O₂, NH₃, CO, CO₂, Cl₂, O₃, H₂S, HCl, CH₃I (expandable) |
| Measurement Range | Customizable |
| Linear Error | ≤ ±1.5% F.S |
| Repeatability | ≤ 0.5% |
| Zero Drift | ≤ ±2% F.S / 7 days |
| Span Drift | ≤ ±2% F.S / 7 days |
| Response Time | < 10s (T90) |
| Warm-up Time | None |
| Flow Rate | 0.7 – 1.2 L/min |
| Inlet Pressure | 2 – 50 kPa |
| Analog Output | 5 × 4–20mA |
| Analog Input | 3 × 4–20mA |
| Digital Communication | RS485 / RS232 / GPRS |
| Relay Output | 14 channels |
| Digital Input | 6 channels |
| Protection Rating | IP42 |
| Operating Temperature | -10°C ~ +40°C |
| Humidity | 0–95% RH |
Instrava OEM/ODM
Instrava Engineering & Customization Support
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.
A uv gas analyzer uses Differential Optical Absorption Spectroscopy (DOAS) to measure gas concentrations by analyzing UV light absorption characteristics. It provides high selectivity and accuracy for gases like SO₂, NOx, and NH₃ in industrial emissions.
It can measure SO₂, NO, NO₂, NH₃, CO, CO₂, O₃, H₂S, Cl₂, HCl, and other gases, making it suitable for multi-gas emission monitoring systems in industrial plants.
Is a UV gas analyzer suitable for continuous emission monitoring systems (CEMS)?
Compared to infrared systems, UV gas analyzers offer better detection of NOx, SO₂, and reactive gases, with higher sensitivity in low concentration ranges and reduced cross-interference.
Yes. It is designed for high humidity, variable pressure, and complex gas mixtures, ensuring stable performance in power plants, chemical plants, and flue gas monitoring applications.
How is a UV gas analyzer integrated into industrial control systems?
Why Choose Instrava
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.
Engineering-Driven Innovation
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.
Application-Specific Customization
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.
Proven Quality and Reliability
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.
Global Capability with Local Support
Instrava combines global engineering expertise with responsive local support, ensuring our partners benefit from internationally aligned technology and timely regional service.
Comprehensive Product Portfolio
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.
Partner-Oriented Engineering Support
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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