Choosing the Right Optical Gas Analysis Solution: A Complete Industry Guide
Selecting the right gas analysis system is crucial for ensuring safety, compliance, and efficiency across multiple industries. Optical gas analysis...
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Optical Analysis
Laser Gas Analyzers – Real-Time In-Situ Process Monitoring with TDLAS Precision
See Your Process Gases Instantly — No Sampling, No Delay
In fast-moving industrial processes, every second matters. Traditional gas analyzers that rely on sampling systems often introduce delays, maintenance burdens, and measurement errors.
The Instrava Curated Laser Gas Analyzers use advanced TDLAS (Tunable Diode Laser Absorption Spectroscopy) to deliver true in-situ, real-time gas measurement—directly inside the process.
No sampling. No pre-treatment. Just accurate, fast, and reliable data when you need it most.
Optical Analysis Description
Advanced Laser Technology for Superior Accuracy
TDLAS Principle – High Selectivity, Zero Cross-Interference
This analyzer uses laser absorption spectroscopy to measure gas concentration based on specific absorption wavelengths.
- Extremely high sensitivity and selectivity
- Virtually no cross-interference from other gases
- Ideal for trace and process gas measurement
Built for Harsh Industrial Environments
① True In-Situ Measurement
- Probe inserted directly into process gas stream
- No sampling lines, no conditioning systems
- Eliminates lag time and maintenance complexity
② High-Temperature & High-Dust Capability
- Silicon carbide filter ensures signal integrity in dusty environments
- Probe withstands temperatures up to 400°C
- Heated optical surfaces prevent contamination buildup
③ Integrated Transceiver Design
- Combined transmitter & receiver structure
- Improved vibration resistance and optical stability
- Simplified installation and maintenance
④ Flexible Installation
- Single-ended mounting design
- Fewer installation points required
- Easier alignment and commissioning
Optical Analysis Parameter
| Parameter | Specification |
|---|---|
| Measurement Principle | TDLAS (Tunable Diode Laser Absorption Spectroscopy) |
| Measured Gases | O₂, CO, HF, H₂O, HCl, NH₃ (configurable) |
| Measurement Range | O₂: 0–3% / 0–25% |
| CO: 0–5000 ppm | |
| HF: 0–2 ppm / 0–2000 ppm | |
| H₂O: 0–5% / 0–40% | |
| HCl: 0–10 ppm / 0–3000 ppm | |
| NH₃: 0–10 ppm / 0–5000 ppm | |
| Linearity Error | ±2% F.S. |
| Repeatability | ±1% F.S. |
| Stability | ±0.1% F.S./7 days |
| Response Time | T90 < 120 s |
| Analog Output | 4–20 mA / 0–20 mA (switchable) |
| Communication | RS485 (standard) / RS232 (optional) |
| Display | 128×64 OLED |
| Operating Temp (Analyzer) | -30°C to +55°C |
| Probe Temp | -20°C to +400°C |
| Humidity | <80% RH |
| Pressure | 0.8–1.4 bar |
| Dust Tolerance | ≤30 g/m³ |
| Power Supply | AC 100–240V, 50/60 Hz |
| Power Consumption | ≤100 VA (probe) / ≤80 VA (control unit) |
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.
What is a laser gas analyzer and how does TDLAS work?
A laser gas analyzer uses TDLAS technology to measure gas concentration by detecting how specific laser wavelengths are absorbed by target gases. It provides high precision, fast response, and no cross-interference, making it ideal for industrial process monitoring.
What are the advantages of in-situ laser gas analyzers compared to extractive systems?
In-situ analyzers measure gas directly in the process, eliminating:
- Sampling lines
- Gas conditioning systems
- Transport delays
This results in:
- Faster response time
- Lower maintenance cost
- Higher measurement reliability
Can laser gas analyzers operate in high-temperature and dusty environments?
Yes. These analyzers are specifically designed for harsh conditions:
- Probe temperature up to 400°C
- Handles dust concentrations up to 30 g/m³
- Heated optics prevent contamination
They are widely used in cement plants, power plants, and petrochemical processes.
Which gases can be measured with a laser gas analyzer?
Typical measurable gases include:
- O₂ (oxygen)
- CO (carbon monoxide)
- NH₃ (ammonia)
- HCl, HF
- H₂O (moisture)
Custom configurations are available depending on the application.
How accurate and stable are TDLAS gas analyzers?
Laser gas analyzers offer:
- Accuracy up to ±2% F.S.
- Stability of ±0.1% F.S./7 days
- Repeatability of ±1% F.S.
This ensures long-term reliable operation with minimal recalibration.
What industries benefit most from laser gas analyzers?
Laser gas analyzers are widely used in:
- Power generation (boilers, flue gas monitoring)
- Cement & steel industries
- Petrochemical processing
- Waste incineration
- Environmental emission monitoring
They are ideal wherever real-time, high-accuracy gas monitoring is critical.
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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.
