🔍 ABB AZ20/AZ25 Remote Mounted O2 Transmitter with Probe – Model AZ20/112112111110004E/STD
The ABB AZ20/AZ25 O2 analyzer is a high-performance, remote-mounted oxygen transmitter system with probe, specifically designed for measuring oxygen concentration in flue gases and combustion processes. The model AZ20/112112111110004E/STD belongs to the AZ20 series, known for its robust zirconia sensor technology, long lifespan, and minimal maintenance requirements. It plays a vital role in optimizing fuel combustion, reducing emissions, and improving plant efficiency in industries such as power generation, cement production, refining, and chemical processing.
📋 Technical Specifications
| Parameter | Description |
|---|---|
| Model Number | AZ20/112112111110004E/STD |
| Product Type | Remote-Mounted Oxygen Transmitter with Probe |
| Manufacturer | ABB Limited |
| Sensor Type | Zirconia-based oxygen sensor |
| Mounting Type | Remote with interconnection cable |
| Probe Length | 400 mm (customizable options available) |
| Operating Temperature | Up to 800°C (probe insertion) |
| Response Time | < 5 seconds (T90) |
| Accuracy | ±1% of reading |
| Signal Output | 4–20 mA, HART |
| Ingress Protection | IP65 / NEMA 4X (enclosure) |
| Power Supply | 24 VDC / 110–240 VAC |
| Material of Probe | Stainless steel, high-temp corrosion resistant |
| Certification | ATEX, CSA, IECEx, CE compliant |
The AZ20’s sensor is replaceable and comes factory-calibrated, reducing the need for on-site adjustment. It is particularly effective in continuous emission monitoring systems (CEMS) and combustion control loops. Due to its high stability and resistance to sensor poisoning, it is a preferred choice in dirty gas environments like coal-fired plants or waste incineration.
🏭 Industrial News
With global industries aligning toward net-zero emission targets, oxygen analyzers like ABB’s AZ20/AZ25 have become key components in emission monitoring and energy optimization systems. Recently, utility providers in Asia and Europe have upgraded their legacy O2 transmitters to AZ20 models to meet stricter environmental regulations. In thermal power stations, integrating AZ20 helps operators maintain optimal excess air ratios, leading to fuel savings and lower NOx formation. Industries such as steel and cement, known for their high carbon footprint, are also rapidly implementing ABB’s zirconia-based sensors to improve combustion transparency and regulatory compliance.
🧩 Similar Recommended Models
| Model | Mounting | Application | Output Signal |
|---|---|---|---|
| ABB AZ25/STD/250 | Remote with flange | Heavy-duty combustion monitoring | 4-20 mA, HART |
| ABB ZFG2/400 | In-situ | Boiler flue gas analysis | 0-10 V / Modbus |
| Siemens LDS 6 | In-situ (laser) | Fast-response O2/CO measurements | Digital + Analog |
| Rosemount 6888 | Probe mounted | Oxygen excess air monitoring | Foundation Fieldbus |
| Fuji ZKM Type O2 Analyzer | Extractive | High-dust flue gas environments | 4-20 mA / Relay output |
🏢 About Zhangzhou Fengyun Electrical Equipment Co., Ltd.
Zhangzhou Fengyun Electrical Equipment Co., Ltd. is a professional supplier specializing in the import and export of high-end industrial automation products. The company’s core products include PLC modules, control panels, power supplies, sensors, and industrial communication equipment from brands such as ABB, GE, Siemens, Allen-Bradley, Honeywell, and Schneider Electric. With strong supply chain networks and technical support capabilities, Fengyun delivers solutions across industries like energy, transportation, water treatment, and petrochemicals.
📞 Sales Engineer: Amy
📱 Phone: 15359029662
📧 Email: geabbamy@gmail.com
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