In-situ Laser Process Gas Analyzer – Real-Time Cross-Stack Measurement Without Sampling
True In-Situ Gas Analysis — Measure Directly in the Process, Not After It
When milliseconds matter and process conditions are harsh, traditional extractive systems fall short.
The Instrava Curated In-situ Laser Process Gas Analyzer is built on advanced TDLAS (Tunable Diode Laser Absorption Spectroscopy) technology, enabling direct cross-stack gas measurement without sampling, conditioning, or delay.
✔ No gas extraction lines
✔ No sample conditioning systems
✔ No measurement lag
👉 This means real-time, accurate process insight exactly where it happens.
With T90 ≤ 4 seconds, it delivers one of the fastest response times available for:
- Combustion optimization
- Oxygen control
- Emission monitoring
- Safety-critical process control
Optical Analysis Description
High Selectivity & Stability — No Cross-Interference in Complex Gas Streams
Unlike traditional gas analyzers, this system uses laser-based absorption spectroscopy, ensuring:
- High selectivity for target gases
- Zero cross-interference from background gases
- Stable performance even in dusty, high-temperature, high-moisture environments
Measured Gases:
- O₂ (combustion efficiency & safety)
- CO (incomplete combustion indicator)
- CO₂ (process & emission monitoring)
- CH₄ (fuel gas & leakage monitoring – optional)
💡 Why this matters:
- Accurate readings even in multi-component gas mixtures
- No need for complex compensation algorithms
- Reliable data for automated control systems (DCS/PLC)
Industrial-Grade In-Situ Design — Built for Harsh Environments
Engineered for direct installation across ducts, stacks, or pipelines, this analyzer eliminates the weak points of conventional systems.
Core Advantages:
- In-situ cross-stack installation → no sample loss or delay
- Explosion-proof (Ex d II C T6) → safe for hazardous zones
- No moving parts → minimal maintenance, long service life
- Resistant to dust, vibration, moisture, and temperature fluctuations
Smart Integration:
- Communication: RS485 / RS232
- Analog output: 4–20mA (2 channels)
- Relay outputs for alarms and control
- Nitrogen purge system for optical protection
👉 Ideal for:
- Power plants (boilers, furnaces)
- Cement kilns & steel plants
- Petrochemical and refining processes
- Waste incineration and flue gas systems
Optical Analysis Parameter
| Parameter | Specification |
|---|---|
| Measurement Principle | TDLAS (Tunable Diode Laser Absorption Spectroscopy) |
| Measured Gases | O₂, CO, CO₂, CH₄ (optional) |
| O₂ Range | 0 – 5% (up to 100% customizable) |
| CO Range | 0 – 100% |
| CO₂ Range | 0 – 100% |
| CH₄ Range | 0 – 20% |
| Resolution | 0.01% VOL |
| Accuracy | ≤ ±1% F.S. |
| Repeatability | ≤ ±1% F.S. |
| Drift | ≤ ±1% F.S. |
| Response Time | T90 ≤ 4 s |
| Installation | In-situ cross-stack |
| Explosion-Proof Rating | Ex d II C T6 |
| Operating Temperature | -20°C to +60°C |
| Power Supply | 24V DC, 24W |
| Purge Gas | Industrial N₂ (0.3 – 0.8 MPa) |
| Communication | RS485 / RS232 |
| Analog Output | 2 × 4–20mA |
| Relay Output | 3 channels |
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 an in-situ laser gas analyzer
An in-situ laser gas analyzer is a device that measures gas concentration directly inside a process duct or stack using laser technology (TDLAS), eliminating the need for gas extraction, sampling, or conditioning systems.
What are the advantages of in-situ gas analysis compared to extractive systems?
In-situ analyzers provide:
- Real-time measurement (no delay)
- No sample loss or contamination
- Lower maintenance (no filters, pumps, or coolers)
- Higher reliability in harsh environments
This makes them ideal for continuous industrial process monitoring.
How fast is a TDLAS in-situ gas analyzer response time?
TDLAS in-situ analyzers can achieve T90 response times as low as 4 seconds, making them significantly faster than traditional extractive analyzers, which may take minutes due to sampling delays.
What industries benefit from in-situ laser gas analyzers?
Industries include:
- Power generation (boilers, flue gas monitoring)
- Cement and steel manufacturing
- Petrochemical and refining
- Waste incineration plants
These sectors require real-time, high-reliability gas measurement.
Does an in-situ analyzer require frequent maintenance?
No. Since it has:
- No moving parts
- No sampling system
- No gas conditioning
Maintenance requirements are minimal, mainly limited to optical window cleaning and purge system checks.
Can in-situ laser analyzers measure multiple gases simultaneously?
Yes, depending on configuration, they can measure gases like O₂, CO, CO₂, and CH₄, providing comprehensive process insights in a single system.
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.
