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Product Overview
The In-Situ Laser Process Gas Analyzer (Cross-Beam Type) is a high-performance gas analysis instrument based on Tunable Diode Laser Absorption Spectroscopy (TDLAS). Designed with a cross-beam (dual-end) configuration, it enables real-time, in-situ measurement of gas concentrations in industrial processes.
The device operates without sampling or pre-treatment systems, allowing direct online measurement at the process site. With a T90 response time of ≤1 second, it captures rapid gas concentration fluctuations, ensuring data accuracy and reliability. It is engineered to perform under harsh industrial environments, including high temperature, high dust, high humidity, high flow, and corrosive conditions.
Working Principle
The analyzer emits a laser at a specific wavelength through the measured gas region. Gas molecules absorb the laser light at characteristic wavelengths, and the receiver detects changes in transmitted light intensity. Gas concentrations are calculated based on absorption variations.
The cross-beam design measures along a path between the emitter and receiver, covering a larger cross-sectional area, which enhances measurement representativeness. TDLAS technology provides excellent selectivity, minimizing interference from background gases and ensuring highly accurate results.
Key Features
- High-Precision Measurement: TDLAS technology ensures strong selectivity for target gases, avoiding cross-interference.
- In-Situ Online Monitoring: No sampling or pre-treatment needed, reducing system complexity and maintenance requirements.
- Rapid Response: T90 ≤1 second, ideal for dynamic process conditions.
- Cross-Beam Design: Wide measurement path increases representativeness of gas concentration data.
- Robust Environmental Adaptability: Stable operation in high temperature, high dust, high humidity, high flow, and corrosive environments.
- High Safety: Explosion-proof design suitable for hazardous industrial sites.
- Low Maintenance: Simple structure with no moving parts or consumables, enabling long-term stable operation.
Applications
- Petrochemical Industry: Real-time monitoring of gas composition during refining and production to ensure operational safety and stability.
- Coal Chemical Industry: Gas concentration monitoring in high-temperature, high-dust conditions for precise process control.
- Metallurgical Industry: Monitoring gas variations during production to improve energy efficiency and reduce emissions.
- Environmental Monitoring: Online monitoring of industrial exhaust gases to ensure compliance with environmental standards.
- Power Industry: Combustion gas analysis to optimize efficiency and control pollutant emissions.
| Parameter | Description |
| Measured Components | H2S, O2, CO, CO2, CH4* |
| Measurement Principle | TDLAS |
| Measurement Range | H2S: 0 ~ 100ppm, 0 ~ 5000ppm |
| O2: (0 ~ 5)%VOL (customizable up to 100%) | |
| CO: (0 ~ 100)%VOL | |
| CO2: (0 ~ 100)%VOL | |
| CH4: (0 ~ 20)%VOL | |
| Accuracy | ≤±1%F.S. |
| Repeatability | ≤±1% |
| Range Drift | ≤±1%F.S. |
| Resolution | 0.01%VOL |
| Response Time | T90≤1s |
| Operating Parameters | |
| Explosion-proof Rating | Ex d ⅡC T6 Gb |
| Installation Mode | In-situ installation |
| Ambient Temperature | (-20 ~ +60)℃ |
| Power Supply | 24V DC, 24W |
| Purge Gas | (0.3~ 0.8) MPa industrial nitrogen |
| Interface Signal | |
| Communication | RS485, RS232 |
| Output Mode | 2 x 4-20mA outputs |
| 3 relay outputs |
Wobo Industrial Equipment Co., Ltd.









