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.

Front view of DOAS Gas Analyzer for gas measurement
DOAS Gas Analyzer device for multi-gas analysis

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  

ParameterSpecification
Measurement TechnologyUV DOAS
Measured GasesSO₂, NO, NO₂, O₂, NH₃, CO, CO₂, Cl₂, O₃, H₂S, HCl, CH₃I (expandable)
Measurement RangeCustomizable
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 TimeNone
Flow Rate0.7 – 1.2 L/min
Inlet Pressure2 – 50 kPa
Analog Output5 × 4–20mA
Analog Input3 × 4–20mA
Digital CommunicationRS485 / RS232 / GPRS
Relay Output14 channels
Digital Input6 channels
Protection RatingIP42
Operating Temperature-10°C ~ +40°C
Humidity0–95% RH

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  

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?

Choosing the Right Optical Gas Analysis Solution: A Complete Industry Guide

  • By Instrava
  • Mar 18, 2026

Selecting the right gas analysis system is crucial for ensuring safety, compliance, and efficiency across multiple industries. Optical gas analysis...

  • 1Min Read

Optical Gas Analysis Solutions in Semiconductor Manufacturing: Ultra-High Precision Monitoring

  • By Instrava
  • Mar 18, 2026

Semiconductor manufacturing demands extreme precision at every stage of the process. Even trace levels of gas contamination can affect wafer...

  • 2Min Read

Optical Gas Analysis Solutions for Water & Wastewater: Odor Control and Environmental Compliance

  • By Instrava
  • Mar 18, 2026

Water and wastewater treatment facilities are increasingly required to monitor and control gas emissions—not only for regulatory compliance but also...

  • 2Min Read

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.
Home
Products
Whatsapp
Contact