Optical Analysis

Laser Gas Analyzer for TDLAS Gas Analyzer

Laser Gas Analyzer for Real-Time NH3 Monitoring

The laser gas analyzer from Instrava is designed for high-precision ammonia (NH₃) monitoring in industrial flue gas systems. Based on advanced TDLAS (Tunable Diode Laser Absorption Spectroscopy) technology, the analyzer provides fast, accurate, and interference-free measurement of ammonia concentrations in complex industrial environments.

This industrial laser gas analyzer can continuously measure NH₃ concentrations in flue gas, helping operators detect ammonia slip in denitrification systems (SCR/SNCR) and optimize emission control processes. The system features high sensitivity, fast response time, and stable long-term performance, ensuring reliable gas analysis even under high-temperature and high-dust conditions.

With real-time data output and compatibility with DCS control systems, the analyzer supports automated process adjustment and helps improve environmental compliance, operational safety, and energy efficiency.

  Optical Analysis Description  

Laser Gas Analysis for Industrial Emission Monitoring

The TDLAS laser gas analyzer is widely used in industries where accurate ammonia monitoring is critical for emission control and process optimization.

Typical application scenarios include:

  • Power plants – monitoring ammonia slip in SCR denitrification systems

  • Cement plants – flue gas emission monitoring

  • Metallurgical industries – industrial furnace gas analysis

  • Coking plants – flue gas pollution control

  • Chemical production facilities – ammonia concentration monitoring

  • Environmental monitoring projects – industrial emission compliance

By providing real-time NH₃ concentration data, the analyzer helps operators optimize denitrification efficiency, reduce reagent consumption, and maintain environmental compliance standards.

Its robust design allows stable operation in industrial flue gas environments with high dust, high temperature, and fluctuating process conditions.

RL-U150 laser gas analyzer with gas concentration display and flow regulation.
Portable laser gas analyzer with built-in display screen showing gas concentration and adjustment features.

Advanced TDLAS Technology for High-Precision Gas Measurement

The Instrava laser gas analyzer uses Tunable Diode Laser Absorption Spectroscopy (TDLAS) to achieve highly selective and accurate ammonia measurement.

Key system advantages include:

  • Laser-based gas detection technology with strong anti-interference capability

  • Fast response time (T90 ≤ 15 seconds) for real-time monitoring

  • High sensitivity measurement down to ppm levels

  • Stable long-term performance with service life exceeding 6 years

  • Automatic integration with industrial control systems

Unlike traditional gas sensors, TDLAS analyzers measure gas concentration through optical absorption, which minimizes cross-gas interference and ensures high measurement accuracy even in complex flue gas mixtures.

The analyzer can be easily connected to DCS or process control systems, enabling automated control strategies for industrial emission reduction.

  Optical Analysis Parameter  

ParameterSpecification
Product TypeLaser Gas Analyzer
Detection PrincipleTDLAS (Tunable Diode Laser Absorption Spectroscopy)
Measured GasNH3 (Ammonia)
Measurement Range10 ppm / 1000 ppm / 40% (customizable)
Resolution0.1 ppm / 0.01%
Accuracy±1% full-scale reading
Precision≤ ±2% F.S
Response TimeT90 ≤ 15 s
Warm-up Time30 minutes
Operating Temperature-10°C to 50°C
Humidity≤ 90% RH
Power SupplyDC 12V
Service Life> 6 years
Gas InterfaceΦ6 mm hose (customizable)

  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.

symbolizing trust and the beginning of a long-term partnership

  Related Product Recommendations  

A laser gas analyzer is used to measure gas concentrations using laser absorption spectroscopy. It is commonly applied in industrial flue gas monitoring, emission control systems, and environmental compliance monitoring, especially for gases such as ammonia (NH₃).

A TDLAS gas analyzer uses a tunable diode laser to measure gas concentration based on specific wavelength absorption characteristics. This optical measurement method provides high accuracy, fast response, and minimal cross-gas interference.

Ammonia slip refers to excess ammonia that passes through the SCR or SNCR denitrification system without reacting. A laser NH3 gas analyzer helps monitor ammonia slip levels to optimize reagent injection and ensure environmental compliance.

Industries that commonly use laser gas analyzers include:

  • Power generation plants

  • Cement production facilities

  • Steel and metallurgical plants

  • Chemical manufacturing

  • Environmental monitoring systems

These industries rely on precise gas monitoring to maintain emission standards and efficient process control.

Compared with traditional gas sensors, TDLAS laser gas analyzers provide:

  • Higher measurement accuracy

  • Faster response time

  • Better resistance to gas interference

  • Longer operational lifespan

This makes them suitable for complex industrial flue gas monitoring applications.

Yes. Most industrial laser gas analyzers support integration with DCS, PLC, and SCADA systems, enabling real-time gas monitoring, automated control adjustments, and centralized industrial process management.

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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