The ABB AO2000 LS25 represents the cutting edge of continuous gas analysis systems within ABB’s Advance Optima platform. Designed for harsh industrial environments, this laser-based spectrometer achieves ±0.5% FS measurement accuracy for O₂, CO, and CO₂ concentrations in combustion control applications. The AO2000 LS25 integrates TÜV-certified NDIR (Non-Dispersive Infrared) technology with in-situ sampling, eliminating traditional sample conditioning systems. Its modular architecture allows seamless integration of up to 6 measurement components, including optional H₂S and CH₄ detection modules.
As part of ABB’s Industry 4.0-ready analytical portfolio, the AO2000 LS25 features predictive diagnostics through ABB Ability™ Analytics, reducing maintenance costs by 40% compared to conventional analyzers. The explosion-proof (ATEX II 2G Ex db IIC T6) enclosure with IP66 protection enables direct installation in Zone 1 hazardous areas. With <2-second response time, this system is critical for optimizing thermal processes in power plants and refineries while maintaining emissions compliance.
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | AO2000 LS25 |
| Manufacturer | ABB |
| Product Type | In-situ Laser Gas Analyzer |
| Measurement Range | 0-25% O₂, 0-5000ppm CO, 0-20% CO₂ |
| Accuracy | ±0.5% FS |
| Response Time | <2 seconds |
| Optical Path Length | 0.5-20 meters adjustable |
| Operating Pressure | 0.8-1.2 bar abs |
| Ambient Temp Range | -20°C to +55°C |
| Process Temp Limit | 180°C (standard), 350°C (high-temp option) |
| Power Supply | 100-240 VAC, 50/60 Hz |
| Communication | Profibus DP, Modbus TCP/IP, 4-20mA outputs |
| Certifications | ATEX, IECEx, SIL 2, EN 15267-3 |
| Enclosure Rating | IP66/Type 4X |
| Calibration Interval | 12 months |
Key Features and Advantages:
Advanced measurement stability: The AO2000 LS25 employs wavelength-modulation spectroscopy (WMS) to eliminate cross-interference from background gases. Its automatic pressure/temperature compensation maintains <1% drift over 6-month periods.
Smart maintenance capabilities: Built-in test functions validate optical alignment and detector sensitivity. The HotSwap™ module design enables component replacement in <15 minutes without process interruption.
Multi-application flexibility: Configured with ABB’s LS25 laser platform, the system adapts to various duct diameters (200-6000mm) through adjustable beam length. Optional heated optics (H-Option) prevent condensation in high-humidity flue gas streams.
Application Areas:
The ABB AO2000 LS25 excels in:
- Power Generation: Real-time combustion optimization for coal-fired boilers
- Cement Production: Kiln exhaust gas monitoring (NOx/SO₂ compliance)
- Waste Incineration: Dioxin precursor detection in flue gas
- Chemical Processing: Ethylene cracker furnace efficiency control
In steel mills, this analyzer reduces fuel consumption by 3-5% through precise O₂ trim control of reheating furnaces. Municipal waste facilities use its CO measurement for early fire detection in bunker storage areas.
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Installation and Maintenance:
Installation preparation: Verify process pipe diameter matches optical path requirements before mounting the AO2000 LS25. Ensure purge air supply (0.5-6 bar, ISO 8573-1 Class 3) is available for lens protection. Allow 500mm clearance around the analyzer for servicing access.
Maintenance recommendations: Perform quarterly window cleanliness checks using the built-in transmission monitor. Replace desiccant cartridges (P/N DSC-25) annually in high-humidity environments. Use ABB’s CalWin software for automated zero/span calibration every 6 months.
