Description
Product Parameters
| Parameter | Specification |
|---|---|
| Model | AZ20 112112221112E STD |
| Brand | ABB |
| Series | AZ20 continuous gas analyzer |
| Measurement Principle | Zirconia oxygen sensor |
| Measured Component | Oxygen (O2) concentration |
| Configuration Code | 112112221112E STD (probe length, flange, sensor, electronics options) |
| Measurement Mode | In-situ / direct insertion flue gas measurement |
| Communication | Analog and digital output to plant control system |
| Calibration | Reference gas calibration per ABB procedure |
| Mounting | Stack/flue flange mounting |
| Operating Environment | High-temperature combustion gas |
| Design Intent | Continuous oxygen measurement for combustion control and emissions monitoring |
Advantages and Features
The ABB AZ20 112112221112E STD uses a zirconia sensor to provide fast, accurate oxygen measurement directly in the flue gas stream, enabling real-time combustion trim and efficiency optimization. The in-situ measurement principle of the AZ20 112112221112E STD eliminates sample transport and conditioning, reducing maintenance and response time compared with extractive analyzers. The analyzer’s heated probe and robust construction suit harsh high-temperature, high-dust environments, and the AZ20 112112221112E STD provides stable measurement with minimal drift. Diagnostic functions report sensor health and calibration status, supporting predictive maintenance. ABB’s application engineering and service network support commissioning and lifecycle management of the analyzer.
Application Cases and Fields
The ABB AZ20 112112221112E STD is commonly applied in:
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Power plant boiler oxygen trim and combustion efficiency control
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Cement kiln and preheater oxygen monitoring
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Steel reheating furnace and process furnace control
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Petrochemical fired heater combustion optimization
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Incineration and industrial furnace emissions monitoring
In these applications, the AZ20 112112221112E STD provides continuous oxygen concentration data for combustion optimization, fuel savings, and emissions compliance.
Comparison with Competing Products
Compared with extractive oxygen analyzers, the ABB AZ20 112112221112E STD offers faster response and lower maintenance, thanks to its in-situ zirconia measurement principle. Competing in-situ oxygen probes may offer similar measurement capability but differ in probe construction, flange compatibility, and electronics integration; the AZ20 112112221112E STD benefits from ABB’s established AZ20 platform and service support. Against paramagnetic or electrochemical analyzers, the AZ20 112112221112E STD provides superior performance in high-temperature combustion gas applications. For continuous oxygen measurement in boilers and furnaces, the ABB AZ20 112112221112E STD remains a field-proven choice.
Selection Suggestions and Precautions
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Decode the configuration code 112112221112E STD carefully to confirm probe length, flange type, sensor option, and electronics match the installation.
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Confirm the flue gas temperature, pressure, dust loading, and stack dimensions match the AZ20 112112221112E STD probe specification.
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Verify the required output signals and communication interfaces for integration with the plant control system.
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Follow ABB installation and commissioning manuals for probe insertion depth, sealing, reference air supply, and calibration.
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Procure the ABB AZ20 112112221112E STD through authorized channels to ensure authenticity, correct configuration, and warranty coverage.
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Maintain spare sensor and probe components given the criticality of continuous combustion monitoring.
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Perform regular calibration with reference gases and verify measurement performance against plant efficiency and emissions targets.
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