61-6872-9 Fireye Fiber Optic

Overview

The Fireye 61-6872-9 is a replacement quartz fiber optic bundle designed for use with advanced flame scanning systems such as InSight II, 95UV, 85UV, and 45UVFS. This component is essential for installations where the burner’s physical configuration, such as the presence of diffusers or air compartments, obstructs the direct line of sight between a conventional surface-mounted scanner and the target flame. By utilizing flexible quartz optics, it transmits flame radiation from the combustion chamber to the scanner electronics located in a more accessible or cooler environment.

Features

• High-temperature quartz fiber optic core provides excellent UV and IR transmittance
• Flexible stainless steel protective housing ensures durability in harsh industrial environments
• 9-foot nominal length allows for significant extension from the burner face to the electronics
• Identified ends featuring H for hot and C for cold with a blue marker to ensure proper orientation during installation
• Designed to maintain signal integrity in applications where burner flames form a fireball or move within the furnace

Specifications

• Model Number: 61-6872-9
• Type: Fiber Optic Bundle
• Material: High-temperature Quartz
• Length: 9 feet (2743 mm)
• Maximum Temperature (Hot End): 752 F (400 C)
• Optical Field of View: Approximately 13 sq. in. at 3 feet
• Compatibility: Fireye InSight II, 95UV, 85UV, and 45UVFS scanners

Applications

The 61-6872-9 is primarily used in commercial and industrial boiler and burner management systems. It is ideally suited for complex burner configurations where movable vanes, sight pipe misalignment, or internal burner apparatus prevent a standard scanner from viewing the flame. It is frequently employed in multi-burner furnaces where precise discrimination of an individual burner’s flame is required despite the presence of a general furnace fireball.