What is a Flue Gas Analyzer
In today’s industrial world, efficiency, safety, and environmental compliance are non-negotiable. Whether you’re managing a power plant, a cement kiln, or a boiler system, one thing is certain—your emissions matter. This is where a Flue Gas Analyzer (FGA) becomes indispensable.
A flue gas analyzer is a device used to measure and analyze the concentration of gases released during combustion processes. It provides real-time insights into emissions like CO₂, CO, O₂, NO, NO₂, SO₂, and stack temperature (ST), helping industries monitor, regulate, and optimize combustion efficiency.
How Does a Flue Gas Analyzer Work?
At its core, a flue gas analyzer samples the exhaust gases from combustion systems such as furnaces, boilers, and engines. Using a combination of advanced sensors—like NDIR (non-dispersive infrared) for CO₂ and electrochemical (EC) sensors for gases like CO, NO₂, and SO₂—the analyzer detects gas concentrations with high accuracy.
Key Components Involved:
- Sampling probe: Extracts flue gas from the stack
- Built-in pump: Pulls the gas into the analyzer
- Gas sensors: Detect and measure gas concentrations
- LCD display: Shows real-time data
- Data storage & transfer: Logs data for analysis or reporting
Gases Measured by Flue Gas Analyzers
Gas
| Measuring Principle | Range |
| |
CO₂ | NDIR | Up to 100% | 0.1% | |
O₂ | Electrochemical | 0–100% | 0.1% | |
CO | Electrochemical | 0–1000 ppm | 0.1 ppm | |
SO₂ | Electrochemical | 0–2000 ppm | 0.1 ppm | |
NO | Electrochemical | 0–2000 ppm | 0.1 ppm | |
NO₂ | Electrochemical | 0–2000 ppm | 0.1 ppm | |
Stack Temp | Thermocouple | 0–450°C | 0.1°C |
These gases play a critical role in determining combustion efficiency, air pollution levels, and regulatory compliance.
Why Industries Need a Flue Gas Analyzer
- Regulatory Compliance: With increasingly strict environmental norms set by pollution control boards, flue gas analysis is no longer optional. Industries must monitor and report emissions to avoid penalties and shutdowns.
- Operational Safety: Toxic gases like CO and SO₂ pose severe health hazards. A flue gas analyzer helps detect and control these emissions, protecting workers and surrounding communities.
- Combustion Efficiency: Monitoring O₂ and CO₂ levels allows operators to optimize fuel usage. This not only saves costs but also reduces carbon footprint.
- Maintenance Prediction: By analyzing gas patterns, the device helps detect early signs of equipment malfunction, enabling predictive maintenance and reducing downtime.
Application Across Industries
Flue gas analyzers are used in multiple sectors:
- Power Plants – Monitoring combustion in coal- and gas-fired boilers
- Cement & Steel Plants – Emission control from kilns and furnaces
- Chemical & Petrochemical – Regulatory testing and process control
- Heating Systems – Ensuring efficient burner operation
- Environmental Labs – Research and pollution studies
Introducing Serrax Technologies’ Flue Gas Analyzer
The Serrax Flue Gas Analyzer is built for demanding industrial environments. Here’s what makes it stand out:
Technical Specifications:
- Measuring Principle:
- CO₂: NDIR
- O₂, CO, SO₂, NO, NO₂: Electrochemical
- Response Time: T90 < 60 seconds
- Display: In-built Graphics LCD (real-time updates)
- Sampling: Built-in pump with high-temperature probe
- Data Logging: 4GB non-volatile memory, programmable interval (1 min to 1 hour)
- Battery: Rechargeable (8-hour runtime)
- Data Transfer: USB Pen Drive
- Weight: Approx. 0.4 kg (portable)
- Accessories: Charger, Sampling Prob, Temperature Prob, manual
Optional Features:
Temperature thermocouple & probe (0–1200°C)
- Pitot tube for differential pressure & velocity measurement
Key Benefits of Using Serrax Analyzer
- High Accuracy: Detects even minute concentrations
- Multi-Gas Capability: Simultaneous measurement
- Portable & Lightweight: Ideal for field use
- Industrial-Grade Durability: Withstands high heat and rough environments
- User-Friendly Interface: Soft Key with simple navigation
- Cost-Effective: Minimal training, easy maintenance
- Long Battery Life: 8-hour runtime per charge
- Comprehensive Support: Comes with software, manual, and calibration Report
Real-World Example: Flue Gas Monitoring in Power Plants
Let’s say you’re managing a thermal power plant. Your stack is required to emit less than 1000 ppm of CO and only trace amounts of NOx. By deploying the Serrax Flue Gas Analyzer:
- You can perform real-time checks before audits
- Calibrate burners to improve fuel-air ratio
- Log data automatically for monthly reports
- Avoid pollution penalties by staying compliant
Calibration & Compliance Support
Serrax Technologies not only manufactures high-performance analyzers but also provides calibration services. This ensures:
- Accurate readings over time
- Certification for environmental audits
- Extended device lifespan and consistent performance
Conclusion: Monitor Smarter. Breathe Safer.
If your industry burns fuel, you need to know what’s coming out of your stack. With the Serrax Flue Gas Analyzer, you get accuracy, efficiency, and peace of mind — all in one rugged device.
Ready to ensure compliance and optimize your operations?
Contact Serrax Technologies today to request a quote.
Phone no: +91 8851906679,
Email: info@serrax.in
Location: A-84, 2nd Floor,DDA SHED Okhla Phase II New Delhi 110020
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