61-6872-12 Fireye Fiber Optic

Overview

The Fireye 61-6872-12 is a 12-foot quartz fiber optic bundle designed for use in industrial flame monitoring systems. This assembly is specifically engineered for installations where the line of sight of a conventional surface-mounted scanner is obstructed by movable vanes, air compartments, or burner nozzles. It serves as a critical link, transferring flame radiation from the burner area to a compatible Fireye scanner located outside the windbox.

Features

• Constructed with high-quality quartz fiber optics to ensure efficient transmission of ultraviolet and infrared radiation.
• Includes a 12-foot (3658 mm) nominal length to bridge the distance between the burner interface and the scanner electronics.
• Designed with clearly marked “hot” and “cold” ends (etched with H and C) to ensure correct orientation during installation.
• Enclosed within flexible stainless steel tubing to provide mechanical protection and durability in harsh combustion environments.
• Features a blue marker on the cold end for easy identification during maintenance or setup.

Specifications

• Model Number: 61-6872-12
• Nominal Length: 12 feet (3658 mm)
• Material: Quartz fiber optics
• Maximum Temperature (Hot End): 752 degrees F (400 degrees C)
• Compatibility: Designed for use with Fireye InSight II, 95UV, 85UV, and 45UVFS series scanners.
• Weight: Approximately 5 lbs
• Optical Field of View: 13 sq. in. at 3 feet

Applications

The 61-6872-12 fiber optic bundle is primarily used in complex boiler and burner applications where the individual burner flames may form a fireball or where mechanical obstructions prevent direct flame viewing. It is commonly integrated into systems utilizing Fireye flame safeguards and scanners to monitor natural gas, propane, or light oil flames in commercial and industrial settings.