ABB AO2040 Wall-mounted Modular Continuous Online Gas Analyzer

ABB AO2040 Wall-mounted Modular Continuous Online Gas Analyzer

I. Basic Information
Brand: ABB
Model: AO2040
Product Series: Advance Optima AO2000 Series
Installation Method: Wall-mounted installation (the AO2020 in the same series is a 19-inch rack-mounted type)
Protection Level: Standard IP54, explosion-proof type can reach IP65, suitable for analysis cabins and on-site local installation
System Architecture: Central control unit + plug-in analysis measurement module, a single unit can accommodate up to 4 analysis modules, capable of simultaneously detecting multiple gas components

Capable of搭载 mainstream measurement modules and detection principles
URAS26 (NDIR non-dispersive infrared)
Detection： CO， CO₂， SO₂， CH₄， NO， hydrocarbons and other flue gases and process gases；
Advantages： Resistance to water vapor interference， wide measurement range， strong long-term stability， commonly used in CEMS systems.
LIMAS11 (ultraviolet / visible light spectroscopy)
Detection： NO， NO₂， SO₂， H₂S， NH₃， Cl₂， etc. corrosive and low-concentration toxic gases.
MAGNOS28 (magnetosensitive oxygen analysis)
High-precision measurement of O₂， suitable for boilers， kilns， air separation， and oxygen content monitoring in chemical reactions.
FIDAS24 (hydrogen flame ionization detector FID)
Measures total hydrocarbons THC， VOC， with ATEX explosion-proof certification， can be used in explosion-proof 1/2 zone hazardous working conditions.

Core Functions
Simultaneous online continuous monitoring of multiple components
One host integrates multiple analysis modules， collects the concentration of flue gases and process gases in real time， used for environmental emission monitoring， combustion optimization， and process closed-loop control.
Automatic temperature， pressure， and flow compensation + anti-interference algorithm
Built-in temperature， pressure， and flow compensation， eliminates measurement drift caused by process fluctuations， stable measurement in high-humidity， dust conditions.
Automatic calibration + complete self-diagnosis
Supports automatic zero air calibration， calibration of gas range with standard gas； real-time monitoring of sample gas flow， condensate level， light source， detector faults， and early warning of maintenance needs.
Rich signal output， seamless connection with DCS/SCADA
Analog output： 4-20mA (support HART) multi-channel isolated output
Digital communication： Modbus RTU/TCP， Profibus， Ethernet， OPC
Switching output： Fault， alarm， calibration， abnormal flow output with passive contacts
Explosion-proof optional version
AO2040-Ex is certified by ATEX and IECEx for explosion-proof， can be installed in chemical， oil and gas flammable and explosive site areas.

Key Electrical and Environmental Parameters Table
Parameter item Technical specification
Power supply 100～240V AC 50/60Hz, power consumption 40～70VA
Measurement accuracy ±0.5%～±1% FS, repeatability ≤1% FS
T90 response time ≤6s
Operating environment temperature -10℃～+45℃ (explosion-proof wide temperature model – 40℃～+60℃)
Sample gas requirements Dust removal, condensation dehumidification, stable pressure (0.8～1.2bar)
Overall dimensions 444mm×199mm×597mm (including junction box)
Overall weight Approximately 15kg

Typical application scenarios
Power plant, waste incineration plant CEMS flue gas online monitoring: SO₂, NO, CO, O₂, dust for flue gas analysis, environmental data upload.
Chemical, coal chemical, metallurgy, air separation device: oxygen content of reaction furnace, process gas components, VOC of waste gas, H₂S toxic gas monitoring.
Boiler, gas turbine combustion optimization: adjust air-coal ratio through flue gas parameters to reduce energy consumption and reduce pollutant emissions.
Oil and gas, pharmaceutical explosion-proof conditions: explosion-proof AO2040-Fidas for online monitoring of volatile combustible gases, total hydrocarbons.

Core differences between AO2040 and AO2020
AO2040: Wall-mounted, IP54/IP65 protection, suitable for analysis cabins, decentralized installation at the site;
AO2020: 19-inch rack-mounted, IP20 protection, suitable for centralized installation in control cabinets;
Internal measurement module, control software, communication protocol are completely interchangeable, modules can be mutually replaced.