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ABB AO2000 LS25 Laser Gas Analyzer – Comprehensive Technical Profile
1. Core Technology & Performance
• Measurement principle: Tunable Diode Laser Absorption Spectroscopy (TDLAS)
• Target gases: O₂, CO, CO₂, NOₓ, NH₃, HCl and other IR-active species—range selectable by configuration
• Accuracy: ±2 ppm or ±2 % of reading, whichever is greater
• Response time (T₉₀): ≤1 second
• Sensitivity: sub-ppm level dependent on gas and path length
• Drift: < 1 % per month with automatic baseline correction
Detailed content
2. Physical & Environmental Specifications
• Transmitter & receiver: coated aluminum enclosures, IP66 / NEMA 4X
• Process connection: DN50 (2″) flanges standard, ANSI or DIN options
• Optical path length: 0.3 – 15 m (typical)
• Operating temperature: –20 °C to +60 °C (standard), –40 °C to +85 °C (option)
• Relative humidity: 5 % – 95 % RH, non-condensing
• Protection class: ATEX / IECEx Zone 1 & 2, CSA Class I Div 2
• Pressure rating: 0 – 5 bar absolute (standard), higher on request
• Transmitter & receiver: coated aluminum enclosures, IP66 / NEMA 4X
• Process connection: DN50 (2″) flanges standard, ANSI or DIN options
• Optical path length: 0.3 – 15 m (typical)
• Operating temperature: –20 °C to +60 °C (standard), –40 °C to +85 °C (option)
• Relative humidity: 5 % – 95 % RH, non-condensing
• Protection class: ATEX / IECEx Zone 1 & 2, CSA Class I Div 2
• Pressure rating: 0 – 5 bar absolute (standard), higher on request
3. Electrical & Communications
• Power supply: 24 VDC (18 – 36 VDC) or 100 – 240 VAC via external supply box
• Power consumption: < 20 W per channel
• Outputs: 4 – 20 mA (isolated), active or passive; HART 7 superimposed
• Digital interfaces: Ethernet (TCP/IP, Modbus TCP, OPC UA), RS-232 service port
• Relays: two configurable alarm relays (SPDT, 250 VAC / 30 VDC, 2 A)
• Power supply: 24 VDC (18 – 36 VDC) or 100 – 240 VAC via external supply box
• Power consumption: < 20 W per channel
• Outputs: 4 – 20 mA (isolated), active or passive; HART 7 superimposed
• Digital interfaces: Ethernet (TCP/IP, Modbus TCP, OPC UA), RS-232 service port
• Relays: two configurable alarm relays (SPDT, 250 VAC / 30 VDC, 2 A)
4. Functional Highlights
• Hot-alignment red laser pointer for fast commissioning
• Automatic zero/span calibration via internal reference cell or external test gas
• Purge-air ports for optical window protection in dusty conditions
• Real-time diagnostics: laser transmission, temperature, pressure, signal-to-noise ratio
• Modular Advance Optima frame allows side-by-side integration with other analyzers
• Hot-alignment red laser pointer for fast commissioning
• Automatic zero/span calibration via internal reference cell or external test gas
• Purge-air ports for optical window protection in dusty conditions
• Real-time diagnostics: laser transmission, temperature, pressure, signal-to-noise ratio
• Modular Advance Optima frame allows side-by-side integration with other analyzers
5. Target Applications
• Process control: combustion air optimization in boilers, reformer furnace O₂ measurement, Claus plant H₂S/SO₂ ratio control
• Emission monitoring: stack CEMS for CO, NOₓ, SO₂ in power, cement, steel plants
• Chemical & petrochemical: reactor feed CO₂ monitoring, ethylene cracking furnace O₂, ammonia slip in SCR units
• Food & pharma: inert-gas blanketing O₂ verification, fermentation off-gas CO₂
• Hazardous areas: offshore rigs, refineries, solvent handling zones with certified enclosures
• Process control: combustion air optimization in boilers, reformer furnace O₂ measurement, Claus plant H₂S/SO₂ ratio control
• Emission monitoring: stack CEMS for CO, NOₓ, SO₂ in power, cement, steel plants
• Chemical & petrochemical: reactor feed CO₂ monitoring, ethylene cracking furnace O₂, ammonia slip in SCR units
• Food & pharma: inert-gas blanketing O₂ verification, fermentation off-gas CO₂
• Hazardous areas: offshore rigs, refineries, solvent handling zones with certified enclosures
6. Installation & Maintenance
• Mounting: through-flange on duct or stack; alignment tolerance ±2°
• Cables: factory-terminated, 10 m standard; Phoenix VARIOSUB IP67 connectors
• Routine checks: optical transmission daily (local display), window cleaning quarterly
• Calibration interval: 3 – 12 months depending on application accuracy demand
• Hot-swap electronics drawer without process shutdown (Advance Optima frame)
• Mounting: through-flange on duct or stack; alignment tolerance ±2°
• Cables: factory-terminated, 10 m standard; Phoenix VARIOSUB IP67 connectors
• Routine checks: optical transmission daily (local display), window cleaning quarterly
• Calibration interval: 3 – 12 months depending on application accuracy demand
• Hot-swap electronics drawer without process shutdown (Advance Optima frame)
7. Ordering Essentials
• Analyzer module: AO2000 LS25-Tx-Rx (transmitter + receiver pair)
• Flange adapter set: DN50 ANSI 150#, DN50 PN16, or custom
• Power box: 24 VDC or 100-240 VAC supply
• Options: heated enclosure, purge unit, HART handheld, Ethernet switch rail-mount
• Analyzer module: AO2000 LS25-Tx-Rx (transmitter + receiver pair)
• Flange adapter set: DN50 ANSI 150#, DN50 PN16, or custom
• Power box: 24 VDC or 100-240 VAC supply
• Options: heated enclosure, purge unit, HART handheld, Ethernet switch rail-mount
