AZ20 ABB

Description

Product name  : AZ20  ABB  Controller module

Product details:

The ABB AZ20 is a versatile and reliable zirconia oxygen analyzer designed for in-situ measurement of oxygen concentration in combustion flue gases. It is part of ABB’s range of advanced analytical instruments used to optimize combustion processes, improve efficiency, and reduce emissions in various industrial applications.

The AZ20 sensor is an in-situ probe, meaning it is inserted directly into the process flue or duct. It provides a real-time, continuous measurement of oxygen without the need for a separate sampling system. This direct measurement method ensures a fast response time and high accuracy, making it ideal for process control and monitoring.

Product Parameters (Technical Specifications)

• Measurement Principle: Zirconia sensor (zirconium dioxide)
• Measurement Range: Typically 0.1% to 25% O₂ (may vary depending on the specific model)
• Accuracy: Typically ±1% of reading or ±0.05% O₂ (whichever is greater)
• Response Time: Fast, typically less than 4 seconds for a 90% step change in O₂
• Operating Temperature (Probe): Up to 600°C (1112°F) or higher, depending on the model and materials
• Operating Temperature (Transmitter): -20°C to 55°C (-4°F to 131°F)
• Probe Lengths: Available in various lengths to suit different duct sizes
• Materials: High-grade stainless steel or ceramic for the probe and sensor housing to withstand harsh environments
• Output Signal: 4-20 mA, HART, or Modbus for integration with control systems (DCS/PLC)
• Power Supply: Typically 100-240 VAC, 50/60 Hz

Product Advantages

• In-Situ Measurement: The direct measurement method eliminates the need for complex and costly sampling systems, reducing maintenance and potential for errors.
• Fast Response Time: Provides real-time data, allowing for immediate adjustments to the combustion process, which is crucial for maximizing efficiency and safety.
• High Reliability: The robust zirconia sensor is highly resistant to contamination and thermal shock, ensuring long-term stable performance in harsh industrial environments.
• Easy Maintenance: The modular design allows for simple and quick replacement of the sensor probe and other components, minimizing downtime.
• Enhanced Efficiency: By optimizing the air-to-fuel ratio, the AZ20 helps reduce fuel consumption and operating costs.
• Reduced Emissions: Precise control of combustion helps lower the production of harmful pollutants such as NOx and CO, supporting environmental compliance.

Important Considerations

• Installation: Proper installation is critical. The probe must be correctly positioned within the flue gas stream to ensure a representative sample and avoid localized air pockets or dead zones.
• Calibration: While the zirconia sensor is very stable, periodic calibration and validation are recommended to maintain measurement accuracy.
• Maintenance: Regular inspection of the sensor and probe is necessary to check for fouling or physical damage, especially in applications with high particulate matter.
• Operating Conditions: The AZ20 is designed for hot, dry flue gases. Exposure to condensing liquids or corrosive chemicals can damage the sensor. Ensure the flue gas temperature remains above the dew point.
• Model Selection: It’s important to choose the correct probe length and material based on the specific application’s temperature, pressure, and gas composition.

Product Applications

The ABB AZ20 is widely used in various industries where combustion optimization and emissions control are critical.

• Power Plants: Used to monitor boiler efficiency and control air-to-fuel ratio in coal, gas, and oil-fired power generation.
• Refineries and Petrochemical Plants: Applied in process heaters, boilers, and furnaces to optimize combustion and ensure safe operation.
• Cement and Lime Kilns: Used for controlling the firing process to improve product quality and reduce energy consumption.
• Incinerators: Helps ensure complete combustion of waste, minimizing the release of hazardous emissions.
• Industrial Furnaces and Kilns: Utilized in steel, glass, and ceramic manufacturing to maintain precise temperature control and energy efficiency.

Advantages: Foxboro, OVATION, TRICONEX, Allen-Bradley, ABB, Motorola, Siemens Moore, Ge Fanuc, Woodward, Bently Nevada and other major import brands!

We have the same series of models in stock.  If you don’t find the model you need, please contact us and we will provide you with an official quotation！

Colour：new Warranty: 12 months
Lead Time：3-day working day Country of origin: Sweden
Price: Please contact us Product weight：0.515kg
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: fedex, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service

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