TDLAS Laser Gas Analyzer

The TDLAS laser gas analyzer is suitable for electronic gases, corrosive gases, high-temperature and high-pressure working conditions. It adopts Tunable Diode Laser Absorption Spectroscopy (TDLAS). The target gas component absorbs light at a specific wavelength, and the absorption intensity is proportional to the component concentration. The laser frequency is rapidly modulated to scan across the absorption line of the target gas. Lock-in amplification technology is used to measure the harmonic components in the transmitted spectrum after gas absorption, so as to analyze gas absorption and calculate gas concentration by detecting laser attenuation.

Detailed Description

Specifications

• Measurable Gases: NH₃, HCl, HF, H₂S, CH₄, CO, CO₂, SO₂, NOₓ, O₂, H₂O, etc.

• Measurement Ranges: 0–10/20/50/100/300/500/1000 ppm…… optional

• Response Time: ≤120 s

• Repeatability: ≤2%

• Linearity Error: ±2% F.S.

• Drift: Negligible

• Output & Communication Protocols: 4~20 mA, RS-232 / RS-485, Modbus RTU

• Dimension: 4U or 6U (19-inch standard rack chassis)

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Features

• Multi-component QCL/TDL analyzer for simultaneous measurement of multiple gases

• Measurement range from sub-ppm level to percentage level

• Accurate and sensitive gas detection

• Excellent linearity and repeatability

• Low long-term drift, extending calibration intervals

• Low maintenance cost and low life-cycle cost

• Intuitive and user-friendly operation interface

• Interchangeable modular configuration

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Typical Applications

• Emission monitoring: environmental monitoring for chemical parks, waste incineration plants, etc.

• Process monitoring: real-time online measurement of process gases in production, including ammonia slip monitoring.