Description

ABB AO2040-LS25 Laser Gas Analyzer (TDLAS)
The AO2040-LS25 is a wall-mounted laser gas analyzer in the ABB Advance Optima AO2000 series. It is equipped with the LS25 laser module and operates based on Tunable Diode Laser Absorption Spectroscopy (TDLAS) technology. It is used for in-situ / flue gas penetration high-precision gas measurement without the need for complex pre-treatment.

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Core parameters
Brand: ABB (Germany)
Model: AO2040-LS25 (AO2040 main unit + LS25 laser module)
Measurement principle: TDLAS (Tunable Diode Laser)
Installation method: Wall-mounted (AO2040), LS25 can be directly flanged-mounted on pipes / chimneys
Protection level: IP54 (sweepable)
Measurement components (typical):
O₂: 0–0.1 vol%
CO/CO₂: ppm to vol% level
NH₃, HCl, HF, H₂S, H₂O, etc.
Environmental temperature: -20°C to +50°C
Power supply: 24 VDC ±10%
Communication: Ethernet (TCP/IP), Modbus TCP; Analog output 4–20 mA
Explosion-proof certification: ATEX, IECEx, CSA (Zone 2/22)Weight / dimensions: Main unit approximately 12 kg; 444 × 199 × 412 mm

Typical Applications
Thermal Power / Waste Incineration: O₂, CO, CO₂, NH₃ emissions monitoring in flue ducts
Steel Metallurgy: Gas analysis in blast furnaces / converters
Chemical / Petrochemical: Process gases, toxic and harmful gases monitoring
Environmental Monitoring CEMS: Continuous monitoring system for flue gas emissions