Description
ABB AO2000-LS25 – Modular AO2000 analyzer module for reliable process gas measurements

The ABB AO2000-LS25 sits within the Advance Optima (AO2000) modular gas analysis platform. In many cases, it’s selected as the measurement module where fast, stable photometric/laser-based detection is needed, and it integrates directly into the AO2000 rack or housing with the familiar plug-in form factor. From my experience, plants choose LS-series modules when they want short warm-up, low drift, and clean signal quality without constant recalibration.
Company’s Order Placement Process and Guarantees
- Warranty: 365 days
- Delivery time: 1 week for in-stock items; no more than one month at the latest
- Payment: 50% advance payment; full payment before delivery
- Express delivery: FedEx, UPS, DHL
Key Features
- AO2000-native module format – Slides into the Advance Optima system, recognized automatically by the central unit for quick commissioning.
- Fast and stable measurement – Designed for rapid response with low signal drift, which typically reduces calibration frequency.
- Robust against process conditions – Optimized optics and internal compensation help maintain accuracy under varying temperature and load.
- Digital connectivity – Compatible with common AO2000 communication options (e.g., Modbus/RS‑485, Profibus-DP) for easy DCS integration.
- Low maintenance design – Long-life emitter/detector concept; routine checks are simple and usually handled during standard shutdowns.
- Flexible application pairing – Works within AO2000 alongside modules such as URAS 26, MAGNOS 206, CALDOS 25, or LIMAS 23 to build multi-component solutions.
Technical Specifications
| Brand / Model | ABB AO2000-LS25 (Advance Optima series module) |
|---|---|
| HS Code | 902710 (Gas or smoke analysis apparatus) |
| Power Requirements | Typically 24 VDC supplied via the AO2000 rack; power supply module in the rack fed by 100–240 VAC, 50/60 Hz |
| Dimensions & Weight | AO2000 plug-in module format (fits the standard AO2000 housing/rack); weight and width consistent with other AO2000 analyzer modules |
| Operating Temperature | +5 to +45 °C typical analyzer cabinet ambient; avoid condensation/vibration |
| Signal Input/Output Types | Analog 4–20 mA (isolated) and status relays via AO2000 backplane; setpoint/status via digital bus |
| Communication Interfaces | RS‑485 Modbus RTU and Profibus-DP options; service via Ethernet on system controller (depending on AO2000 configuration) |
| Installation Method | Rack-mounted in the ABB AO2000 system (19-inch rack or wall-mounted housing) |
Application Fields
You might notice that facilities running mixed gas streams gravitate to AO2000 modules because they scale well. The AO2000-LS25 is typically deployed in:
- Combustion control and boiler optimization in power & utilities
- Cement preheater and kiln off-gas monitoring
- Waste incineration and emissions lines (extractive sampling)
- Chemical and petrochemical process streams requiring fast response
- Steel and non-ferrous plants for flue and process gas checks
A maintenance lead at a cement plant told us they swapped an older module for an AO2000-LS25 during a short stop; the system auto-recognized it and they were trending again in under an hour. That kind of minimal disruption is, frankly, why the AO2000 ecosystem still sees wide use.
Advantages & Value
- Reliability under load – The module is engineered for continuous-duty, offering stable baselines across varying shifts and seasons.
- Compatibility across AO2000 – Works alongside URAS 26 (NDIR), MAGNOS 206 (paramagnetic O2), CALDOS 25 (thermal conductivity), or LIMAS 23 (UV/VIS) to build exactly the mix you need.
- Lower lifecycle costs – Long-life optics and fewer calibrations typically mean fewer service callouts and spares kept on the shelf.
- Integration-ready – Standard industrial I/O and bus options reduce engineering time when tying into DCS/PLC platforms.
- Support ecosystem – Spares, firmware, and configuration tools remain available for AO2000 users, which seems to be a deciding factor for multi-site companies.
Installation & Maintenance
- Cabinet & environment – Mount in an AO2000 rack or housing within a clean, ventilated analyzer cabinet; keep ambient between +5 and +45 °C, non-condensing.
- Wiring – Use shielded cables for analog 4–20 mA and RS‑485 runs; ground per ABB AO2000 guidelines to avoid noise on low-level signals.
- Sample handling – For extractive systems, ensure proper sample conditioning (filters, heaters, moisture control) to protect optics.
- Safety – De-energize the system before module insertion/removal; follow lockout procedures. For optical modules, avoid exposure to internal beams when open.
- Routine care – Visual dust check quarterly; verify zero/span on your regular PM schedule; apply firmware updates from ABB when qualified.
- Calibration – Interval depends on process; many users run verification monthly and full calibration less frequently due to the module’s stability.
Quality & Certifications
- Conformity: CE marked; RoHS-compliant design in most configurations
- Quality system: Manufactured under ISO 9001 quality management
- Safety: Meets applicable low voltage and EMC directives for industrial analyzers
- Warranty: 12 months (365 days) standard
Note: Specific measurable components, response time, and accuracy for AO2000-LS25 can vary by configuration. If you share your tag list or target gases, we’ll match the module options and I/O exactly to your application.









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