NXCESO2-8 Fireye Probe Assembly

Overview

The Fireye NXCESO2-8 is an 8.5-inch oxygen (O2) probe assembly designed for use with the Fireye NXF4000 and PPC4000 burner management systems. It provides continuous, real-time oxygen concentration readings, allowing the controller to trim air or fuel servos for optimal combustion efficiency. This probe utilizes a wide-band zirconium dioxide (ZrO2) dual-cell sensor and includes an integrated type K thermocouple to monitor stack temperatures, ensuring precise feedback for combustion trim applications.

Features

• Continuous O2 Monitoring: Provides rapid and accurate oxygen concentration feedback to support automated air-fuel ratio adjustments.
• Integrated Temperature Sensing: Features a built-in type K thermocouple for measuring stack temperatures up to 800 degrees Fahrenheit.
• Advanced Sensor Technology: Employs a planar ZrO2 dual-cell limiting current sensor with a response time of less than 100 milliseconds.
• Easy Maintenance: The oxygen sensor cartridge is designed for quick replacement without requiring the removal of the entire probe from the stack.
• Thermal Management: Includes on-board electronics that monitor ambient temperature and control an integrated cooling fan to maintain internal temperatures between 113 and 158 degrees Fahrenheit.

Specifications

• Model Number: NXCESO2-8
• Insertion Depth: 8.5 inches (216 mm)
• Supply Voltage: 24 VDC (+/- 15%)
• Power Consumption: 12 VA
• Temperature Rating: 32 to 140 degrees Fahrenheit (0 to 60 degrees Celsius)
• Humidity: 85% RH maximum, non-condensing
• Maximum Stack Temperature: 850 degrees Fahrenheit (454 degrees Celsius)
• Communication: Modbus-RTU via a twisted shielded pair
• Protection Category: NEMA 1 (IP01)
• Shipping Weight: Approximately 8.1 lbs (3.67 kg)

Applications

The NXCESO2-8 is primarily used in commercial and industrial combustion systems that utilize Fireye NXF4000 or PPC4000 controllers. It is ideally suited for monitoring flue gases from natural gas, propane, and light oil fuels. By providing accurate O2 and temperature data, it helps facilities reduce emissions, lower fuel consumption, and improve overall boiler or burner performance through precise combustion trim control.