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In-Situ Laser Process Gas Analyzer (Cross-Beam Type)
In-Situ Laser Process Gas Analyzer (Cross-Beam Type)
In-Situ Laser Process Gas Analyzer (Cross-Beam Type)
In-Situ Laser Process Gas Analyzer (Cross-Beam Type)

In-Situ Laser Process Gas Analyzer (Cross-Beam Type)

  • Keywords:in-situ laser gas analyzer, cross-beam gas analyzer, process gas monitoring, real-time gas analysis, industrial gas analyzer
  • Category:CO2 Analysis and Detection

The In‑Situ Laser Process Gas Analyzer (Cross‑Beam Type) is a high‑precision, real‑time gas measurement instrument designed for direct installation across industrial pipelines, ducts, and combustion systems. Using advanced tunable diode laser absorption spectroscopy (TDLAS), it measures gas concentration along a full optical path between a transmitter and receiver positioned on opposite sides of the process line. This cross‑beam configuration provides superior accuracy, strong signal stability, and excellent performance in high‑temperature, high‑dust, and corrosive environments. Capable of detecting gases such as O₂, CO, CO₂, NH₃, H₂O, HCl, and other process‑critical components, the analyzer supports continuous monitoring for combustion optimization, emission control, and industrial process management. Its rugged construction, fast response, and low maintenance requirements make it ideal for power plants, steel mills, cement kilns, chemical production, and environmental monitoring applications.

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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

 

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In-Situ Laser Process Gas Analyzer (Cross-Beam Type)In-Situ Laser Process Gas Analyzer (Cross-Beam Type)

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