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
Tailored Sourcing & Customization: Getting You the Exact Product You Need
As your trusted supplier and sourcing partner, we bridge the gap between your custom requirements and China’s vast manufacturing capabilities.
Finding the right product in a massive supply chain can be challenging. That is where we step in.
As a curated industrial supplier, our core value is simple: we stand in your shoes to help you procure the most optimal products. Whether you are an EPC contractor needing specialized technical compliance, an OEM equipment manufacturer looking for custom branding, or an industrial distributor/trader seeking competitive edge, we customize and tailor products to fit your exact procurement needs.
How We Customize to Fit Your Procurement Needs
For EPC Contractors & Engineers: We custom-configure instruments and devices to match your precise datasheets—tailoring process connections, exotic materials, signal protocols, and managing third-party calibration and testing so you get project-ready solutions.
For OEM Equipment Manufacturers: We provide comprehensive OEM/ODM customization, including custom housing, labeling, branding (private labeling), and tailored technical specifications to seamlessly integrate with your machinery.
For Industrial Distributors & Traders: We offer flexible customization in packaging, product ranges, and technical parameters, helping you differentiate your portfolio and win more local bids.
Why Partner with Us for Custom Sourcing?
One-Stop Engineering Alignment: You don’t have to deal with multiple factories. We translate your technical requirements into precise manufacturer blueprints.
Strict Quality & Compliance Safeguard: We oversee the entire customization and production process in China, ensuring the final customized product meets your local standards and certifications.
Our Ultimate Value: We don’t just sell what’s on the shelf. We find, customize, and deliver the most suitable and cost-effective product for your unique application.
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.
Why Trust Instrava?
We select manufacturers from a neutral, impartial standpoint, always with your best interests in mind.
Our very existence depends on helping you source the products that are the perfect fit for your needs.
Based in China, we are able to conduct on-site inspections of production environments and product quality firsthand.
We help you avoid intermediaries posing as factories.
We facilitate smoother after-sales support, eliminating time zone issues and the delays often associated with dealing directly with factories.
Our multilingual team ensures effective communication.
For a trading startup, every interaction with a client is a precious opportunity—a sign that you are willing to place your trust in us and give us the chance to prove ourselves.
In the digital age, while information is easily accessible, misconceptions often cloud the trust between people.
Instrava relies entirely on trust; it is our core philosophy and the foundation of our existence in society. It is the fundamental basis for our long-term growth and our commitment to serving the community.
Please place your trust in us.
