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
TDLAS Gas Analyzer – High-Precision Laser Gas Detection for Critical Industrial Processes
Next-Generation Gas Measurement — Zero Cross-Interference, Maximum Reliability
In complex industrial environments, accuracy and reliability are non-negotiable.
The Instrava Curated TDLAS Gas Analyzer leverages advanced Tunable Diode Laser Absorption Spectroscopy (TDLAS) technology to deliver ultra-selective, high-sensitivity gas measurement—even in harsh process conditions.
Unlike traditional technologies, this analyzer provides:
- True cross-interference-free measurement
- Fast response with high stability
- Minimal calibration requirements
👉 Ideal for safety-critical, process control, and trace gas monitoring applications.
Optical Analysis Description
Multi-Gas Monitoring with Flexible Range — From ppm to 100%
Designed for industrial versatility, this analyzer supports wide-range gas measurement across multiple critical gases:
Measured Gases:
- O₂ (oxygen control & safety)
- CO / CO₂ (combustion & emissions)
- H₂S (toxic gas & corrosion monitoring)
- CH₄ (methane detection & energy processes)
- H₂O (moisture analysis in gas streams)
Key Advantages:
- Measurement range from ppm level to 100% concentration
- High resolution down to 0.1 ppm
- Suitable for both trace gas detection and bulk gas analysis
💡 For B2B users:
- One analyzer replaces multiple instruments
- Supports process optimization + safety compliance simultaneously
Industrial-Grade Design — Built for Harsh & Hazardous Environments
Engineered specifically for demanding industries, this analyzer ensures long-term stable operation with minimal maintenance.
Rugged & Reliable:
- Explosion-proof design (Ex d IIC T6)
- No moving parts → low maintenance & long lifespan
- Built-in self-diagnosis system for real-time sensor monitoring
Smart Integration:
- Outputs: RS-485 / RS-232 / 4–20mA
- Compatible with DCS / PLC systems
- Built-in auto zeroing air pump for improved accuracy
Typical Applications:
- Petrochemical & refining processes
- Natural gas & LNG treatment
- Power plants & combustion optimization
- Biogas & landfill gas monitoring
- Industrial safety systems
👉 Designed to perform where traditional analyzers fail.
Optical Analysis Parameter
| Parameter | Specification |
|---|---|
| Measurement Technology | TDLAS (Tunable Diode Laser Absorption Spectroscopy) |
| Measured Gases | O₂, CO, CO₂, H₂S, CH₄, H₂O |
| Measurement Range | ppm to 100% (customizable) |
| Accuracy | ±0.5% ~ ±2% F.S. (depending on gas & range) |
| Resolution | Up to 0.1 ppm / 0.01% |
| Repeatability | ≤ ±1% |
| Response Time | T90 < 40 s |
| Flow Rate | 0.7 – 1.2 L/min |
| Inlet Pressure | 2 – 50 kPa |
| Ambient Temperature | 0 – 50°C |
| Humidity | 5 – 85% RH (non-condensing) |
| Output Signal | RS485 / RS232 / 4–20mA |
| Power Supply | AC 220V, 50Hz |
| Explosion-Proof Rating | Ex d IIC T6 |
| Dimensions | 400 × 400 × 250 mm |
| Weight | 9 kg |
| Diagnostics | Built-in self-diagnosis + auto zeroing |
| Measured Gas | Measurement range | Accuracy | Resolution |
| O2 | 0-500ppm | ±2%FS | 1ppm |
| 0-1000ppm | ±2%FS | ||
| 0-5000ppm | ±2%FS | ||
| 0-5% | ±2%FS | 0.01% | |
| 0-25% | ±1%FS | ||
| 0-100% | ±0.5%FS | ||
| CO | 0-500ppm | ±2%FS | 0.1ppm |
| 0-1000ppm | ±1%FS | ||
| 0-5% | ±2%FS | 0.01% | |
| 0-25% | ±1%FS | ||
| 0-100% | ±1%FS | ||
| CO2 | 0-1000ppm | ±2%FS | 0.1ppm |
| 0-5% | ±2%FS | 0.01% | |
| 0-25% | ±1%FS | ||
| 0-100% | ±1%FS | ||
| H2S | 0-1000ppm | ±2%FS | 0.1ppm |
| 0-1% | ±2%FS | 0.01% | |
| CH4 | 0-100ppm | ±2%FS | 0.1ppm |
| 0-1000ppm | ±1%FS | ||
| 0-5% | ±2%FS | 0.01% | |
| 0-25% | ±1%FS | ||
| 0-100% | ±1%FS | ||
| H2O | 0-50ppm | ±2%FS | 0.1ppm |
| 0-6000ppm |
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 TDLAS gas analyzer and how does it work?
A TDLAS gas analyzer uses laser absorption spectroscopy to measure gas concentration by detecting how specific wavelengths are absorbed by target gases. This provides high selectivity, fast response, and no cross-interference, making it ideal for industrial applications.
Why is TDLAS better than NDIR or electrochemical gas analyzers?
Compared to traditional technologies:
- No cross-interference from other gases
- Higher accuracy for trace gas detection (ppm level)
- No moving parts → lower maintenance
- Faster response and better long-term stability
This makes TDLAS ideal for critical process and safety monitoring.
What industries use TDLAS gas analyzers?
TDLAS analyzers are widely used in:
- Oil & gas processing
- Petrochemical plants
- Power generation
- LNG and natural gas pipelines
- Biogas and landfill monitoring
These industries require continuous, high-precision gas analysis in harsh environments.
Can a TDLAS analyzer measure both trace and high concentration gases?
Yes. Modern TDLAS analyzers support wide dynamic ranges, from ppm-level trace detection to 100% concentration, making them suitable for both emission monitoring and process control.
Does a TDLAS gas analyzer require frequent calibration?
No. Due to its optical measurement principle, TDLAS analyzers have:
- Minimal drift
- Stable long-term performance
- Reduced calibration frequency
This significantly lowers maintenance cost and downtime.
What gases can be measured with a TDLAS analyzer?
Typical measurable gases include:
- Oxygen (O₂)
- Carbon monoxide (CO)
- Carbon dioxide (CO₂)
- Hydrogen sulfide (H₂S)
- Methane (CH₄)
- Moisture (H₂O)
This makes it suitable for combustion control, gas purification, and safety monitoring.
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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.
