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 – Compact, High-Precision TDLAS Solution
Fast, Accurate Gas Measurement – Simplified for Industry
In modern industrial processes, speed and accuracy are critical. The Instrava Curated Laser Gas Analyzers provide a compact yet powerful solution for continuous gas monitoring using advanced TDLAS (Tunable Diode Laser Absorption Spectroscopy) technology.
Designed for reliability, ease of use, and long-term stability, this analyzer delivers real-time gas concentration data with minimal maintenance—making it ideal for process optimization and safety monitoring.
Optical Analysis Description
Core Technology – TDLAS Precision You Can Trust
The analyzer operates on laser absorption spectroscopy, ensuring:
- High sensitivity for low-concentration detection
- Excellent selectivity with minimal cross-interference
- Fast response for dynamic process environments
- Stable long-term performance with low drift
This makes it a strong alternative to traditional gas analysis methods in many industrial applications.
User-Friendly & Industrial-Grade Design
① Intuitive OLED Display
- 128×64 OLED screen clearly shows:
- Gas concentration
- System status
- Menu and diagnostics
- Easy-to-read interface for operators in industrial environments
② Touch Button Control
- Durable touch-button interface
- Simple navigation and operation
- Long service life compared to mechanical buttons
③ Compact & Efficient
- Lightweight design (~6.85 kg)
- Low power consumption (<10 VA)
- Easy installation and integration into existing systems
Optical Analysis Parameter
| Parameter | Specification |
|---|---|
| Measurement Principle | TDLAS (Laser Gas Analysis) |
| Linearity Error | ±1% F.S. |
| Repeatability | ±1% F.S. |
| Stability | ±0.1% F.S./7 days |
| Response Time | T90 < 30 s |
| Analog Output | 1 channel |
| Output Mode | 4–20 mA / 0–20 mA (switchable) |
| Load Capacity | < 500 Ω |
| Alarm Output | 1 alarm point |
| Relay Capacity | 24V DC, 0.2A |
| Communication | RS485 (standard) / RS232 (optional) |
| Display | 128×64 OLED |
| Control | 4 touch buttons |
| Operating Temperature | -20°C to +50°C |
| Storage Temperature | -20°C to +60°C |
| Humidity | < 80% RH |
| Pressure Range | 0.8–1.4 bar |
| Power Supply | AC 100–240V |
| Power Consumption | < 10 VA |
| Weight | ~6.85 kg |
| Gas Interface | G(PT)1/4″ – Φ6 stainless steel fitting (optional) |
| Measuring components | |||
| Component | Range | Lower limit | Selection code |
| O₂ | 0~1.000% | 20ppm | A |
| CO₂ | 0~8000ppm | 10ppm | B |
| CO | 0~2000ppm | 0.1ppm | C |
| CH4 | 0~200ppm | 0.01ppm | E |
| C₂H₂ | 0~200ppm | 0.1ppm | F |
| HF | 0~1000ppm | 0.1ppm | J |
| H₂O | 0~1000ppm | 0.1ppm | K |
| H₂S | 0~1000ppm | 0.1ppm | L |
| HCL | 0~1000ppm | 0.1ppm | M |
| NH₃ | 0-10ppm | 0.01ppm | O |
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 it improve industrial gas monitoring accuracy?
A laser gas analyzer is an advanced instrument that uses TDLAS (Tunable Diode Laser Absorption Spectroscopy) to measure gas concentration by detecting how specific laser wavelengths are absorbed by target gases.
Compared to traditional technologies (NDIR, electrochemical, GC), it improves accuracy because:
- It measures specific absorption lines, eliminating cross-interference
- It provides real-time in-situ measurement, avoiding sampling errors
- It maintains long-term stability with minimal drift
👉 This makes laser gas analyzers one of the most accurate and reliable solutions for continuous industrial gas monitoring.
Why are laser gas analyzers better than extractive gas analyzers in industrial applications?
Laser gas analyzers are superior because they use in-situ measurement, meaning they analyze gas directly inside the process rather than extracting samples.
Key advantages include:
- No sampling system → no clogging, no condensation issues
- Faster response time → real-time process control
- Lower maintenance cost → fewer components and no gas conditioning
- Higher reliability → fewer failure points
👉 For industries like power plants, cement, and petrochemical, this results in more stable operation and reduced downtime.
What gases can be measured with a TDLAS laser gas analyzer?
Laser gas analyzers can measure a wide range of industrial gases, including:
- O₂ (oxygen) – combustion optimization
- CO (carbon monoxide) – safety & efficiency
- NH₃ (ammonia) – SCR/DeNOx control
- H₂O (moisture) – drying & process quality
- HCl / HF – emission monitoring
👉 Custom configurations are available, making laser gas analyzers highly adaptable for process control, emissions, and safety monitoring.
How accurate and stable are laser gas analyzers over long-term operation?
Laser gas analyzers are designed for high stability and minimal drift, typically offering:
- Accuracy: up to ±1% F.S.
- Repeatability: ±1% F.S.
- Drift: as low as ±0.1% F.S./7 days
Because there are no moving parts and no chemical sensors, performance remains stable over time.
👉 This reduces the need for frequent recalibration, ensuring consistent and reliable long-term monitoring.
What is the response time of a laser gas analyzer and why does it matter?
The response time (T90) of a laser gas analyzer is typically less than 30 seconds, meaning it can detect 90% of a gas concentration change within this time.
Fast response is critical because it:
- Enables real-time process adjustments
- Improves combustion efficiency
- Enhances safety by detecting gas changes quickly
👉 In dynamic industrial systems, faster response directly translates to better control and reduced risk.
Are laser gas analyzers suitable for harsh environments like high temperature and dust?
Yes. Laser gas analyzers are specifically designed for harsh industrial environments, including:
- High temperatures
- Dust-heavy flue gas
- Corrosive gas conditions
They achieve this through:
- Robust optical design
- Optional filters and heated optics
- Minimal contact with process gas
👉 This makes them ideal for cement kilns, boilers, steel plants, and waste incineration systems.
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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.
