Description
Description:
The ABB AZ20 112112221112E is a premium in-situ oxygen analyzer from ABB, a global leader in industrial automation and measurement technologies. Built on proven zirconium oxide sensor technology, this device delivers real-time, accurate oxygen concentration monitoring for combustion processes, enabling businesses to optimize fuel efficiency and meet strict emission regulations. It combines rugged design with user-centric features, making it a reliable choice for both industrial and commercial combustion systems.
Application Scenarios:
A European municipal waste incineration plant was struggling with inconsistent combustion efficiency and rising CO₂ emissions, as their outdated oxygen monitoring system had slow response times (over 30 seconds) and frequent calibration failures. After installing the ABB AZ20 112112221112E, the plant gained real-time visibility into flue gas oxygen levels with a response time under 10 seconds, allowing operators to adjust fuel-air ratios instantly. The integrated auto-calibration function eliminated the need for manual calibration downtime, while the device’s ability to withstand process temperatures up to 800°C ensured stable performance in the harsh incinerator environment. This not only reduced fuel consumption by 8% but also helped the plant exceed local emission standards, avoiding potential fines and enhancing environmental compliance.
Parameter:
| Parameter | Value/Description |
| Product Model | ABB AZ20 112112221112E |
| Manufacturer | ABB Group |
| Product Category | In-situ Combustion Gas Oxygen Analyzer |
| Measurement Range | 0 – 25% Oxygen Concentration (covers most industrial combustion needs) |
| Measurement Accuracy | ±0.5% of measured value (ensures reliable regulatory compliance data) |
| Response Time | < 10 seconds (enables real-time combustion adjustments) |
| Process Temperature Resistance | Up to 800°C (1472°F) (suitable for high-temperature flue ducts) |
| Probe Length Options | Up to 4.0 m (13.1 ft) (adapts to different duct sizes) |
| Communication Protocol | HART (facilitates seamless integration with DCS/PLC systems) |
| Installation Compatibility | Industry-standard flanges (simplifies retrofitting and new installations) |
| Calibration System | Integrated auto-calibration (reduces maintenance and downtime) |
| Sensor Technology | Zirconium oxide cell (proven reliability with 50+ years of ABB expertise) |
| Physical Dimensions | 120mm (W) × 135mm (D) × 60mm (H), 0.44kg (easy to install in tight spaces) |

AZ20 112112221112E
Technical Principles and Innovative Values:
Innovation Point 1: In-situ Zirconium Oxide Sensing – Unlike extractive analyzers that require sample conditioning (a common source of delay and error), the ABB AZ20 112112221112E mounts its zirconium oxide sensor directly in the flue duct. This direct measurement eliminates sample transport lag, delivering faster response times (up to 3x quicker than extractive alternatives) and more accurate data reflecting real-time combustion conditions.
Innovation Point 2: Integrated Auto-Calibration – Most competitors require external calibration panels or frequent manual adjustments, which are time-consuming and costly. The ABB AZ20 112112221112E’s built-in auto-calibration system automatically verifies and adjusts sensor performance, reducing maintenance time by 70% and ensuring compliance-ready data without operator intervention.
Innovation Point 3: Serviceable Design with Easy Cell Access – The device features a tool-friendly, fully site-serviceable probe with easy cell release, allowing technicians to replace or inspect the sensor without removing the entire probe from the duct. This design cuts maintenance downtime from hours to minutes compared to sealed competitors, minimizing production interruptions.
Application Cases and Industry Value:
In a 500MW coal-fired power plant in Southeast Asia, the ABB AZ20 112112221112E was deployed across 12 boilers to address inefficient combustion and high NOₓ emissions. Prior to installation, the plant relied on manual oxygen sampling, which was inaccurate and delayed adjustments, leading to 12% higher fuel usage and inconsistent emission levels. The ABB AZ20 112112221112E’s real-time data (updated every second) and HART integration with the plant’s DCS allowed for automated fuel-air ratio control. Within three months, the plant reduced coal consumption by 9% and cut NOₓ emissions by 15%, translating to annual savings of over $400,000 in fuel costs and avoiding $150,000 in potential emission penalties. Plant managers praised the device’s durability, noting zero sensor failures in two years of operation— a significant improvement over their previous system’s six-month average sensor lifespan.
A food processing facility in North America used the ABB AZ20 112112221112E to monitor natural gas-fired ovens, where precise oxygen control is critical for product quality and energy efficiency. The analyzer’s compact design fit seamlessly into the ovens’ tight spaces, while its fast response time prevented over-oxidation of products (a common issue with slower monitors). The facility reported a 6% reduction in natural gas usage and a 20% decrease in product waste, as consistent oxygen levels ensured uniform cooking. The auto-calibration feature also freed up maintenance staff from weekly manual checks, allowing them to focus on other critical tasks.
Related Product Combination Solutions:
ABB Endura AZ30: Upgrade model with extended measurement range (0-100% O₂) and multi-gas monitoring (CO, NOₓ), ideal for complex combustion systems requiring comprehensive emissions tracking alongside oxygen levels.
ABB AC500 PLC: Compact controller that integrates seamlessly with the ABB AZ20 112112221112E via HART, enabling localized automation of combustion control loops without relying on a central DCS.
ABB 800xA DCS: Enterprise-level distributed control system that centralizes data from multiple ABB AZ20 112112221112E units, providing advanced analytics, trend tracking, and remote operation for large-scale plants.
ABB TZID-C Temperature Controller: Works in tandem with the ABB AZ20 112112221112E to balance temperature and oxygen levels, optimizing combustion in industrial furnaces and boilers for maximum efficiency.
ABB 615 series Flame Detector: Complements the ABB AZ20 112112221112E by monitoring flame stability, creating a comprehensive safety system for combustion processes that prevents unsafe operating conditions.
ABB CM574 Communication Module: Expands connectivity options for the ABB AZ20 112112221112E, adding PROFINET or Modbus TCP support for integration with non-ABB control systems.
ABB Spare Zirconium Oxide Cell (AZ20-Cell): Replacement sensor cell for the ABB AZ20 112112221112E, ensuring quick maintenance and extending the device’s operational lifespan without full replacement.
ABB Flange Adapter Kit (AZ20-FK): Customizable flange kit that simplifies installation of the ABB AZ20 112112221112E in non-standard duct sizes, reducing retrofitting costs for older facilities.

AZ20 112112221112E
Installation, Maintenance, and Full-Cycle Support:
Installing the ABB AZ20 112112221112E is straightforward, thanks to its industry-standard flange compatibility and compact design. The probe can be inserted directly into flue ducts or furnaces, with probe length options up to 4.0 m accommodating various duct depths. Prior to installation, ensure the mounting location is free of excessive vibration and provides adequate access for maintenance; the device’s IP65-rated housing protects internal components from dust and moisture, making it suitable for both indoor and outdoor installations. Commissioning is simplified via the intuitive HMI and HART communication, allowing quick integration with existing control systems.
Routine maintenance for the ABB AZ20 112112221112E is minimal, thanks to the integrated auto-calibration system and serviceable design. The zirconium oxide cell has a typical lifespan of 2-3 years, and replacement can be done on-site without specialized tools—simply release the cell access panel and swap the unit. Periodic checks (every 6 months) involve inspecting the probe for dust buildup and verifying restrictor integrity, a process outlined in the comprehensive maintenance manual. In case of faults, the device provides diagnostic alerts via HART, enabling technicians to quickly identify and resolve issues (e.g., sensor drift, power supply problems) without downtime.
ABB supports the ABB AZ20 112112221112E with a global network of technical experts, offering 24/7 remote troubleshooting and on-site support when needed. The product comes with a standard 2-year warranty, extendable to 5 years with a service contract, covering manufacturing defects and sensor performance. Customers also gain access to ABB’s online resource center, including installation guides, calibration procedures, and video tutorials, ensuring optimal performance throughout the device’s lifecycle.
Full 12-month warranty on all components
Dedicated after-sales support
Same-day dispatch on 1000s of parts
All units are fully tested
- 1. Email confirmation
You will get an email confirming that we have received your enquiry. - 2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition. - 3. Your quote
You will receive a comprehensive quote tailored to your specific needs.

Full 12-month warranty
Available for dispatch immediately
We deliver worldwide
Full 12-month warranty on all components