61-6872-3 Fireye Fiber Optic

Overview

The Fireye 61-6872-3 is a 3-foot (914 mm) quartz fiber optic bundle designed for industrial flame monitoring systems. It is specifically engineered for applications where the line of sight to the burner flame is obstructed by diffusers, air compartments, or burner nozzles. By utilizing high-temperature quartz optics, it effectively transfers ultraviolet (UV) flame radiation from harsh, obstructed areas inside the windbox to a scanner electronics assembly located safely outside.

Features

• High-temperature quartz optics for reliable transmission of UV flame signals
• Flexible stainless steel outer housing to protect the fiber bundle from mechanical damage
• Etched markers (H for hot end, C for cold end) and a blue marker on the cold end to ensure proper installation and alignment
• Designed to withstand high-temperature environments near the burner interface, with some components rated up to 400 degrees Celsius
• Facilitates individual burner flame detection even in complex boiler configurations where flames may form a fireball

Specifications

• Model Number: 61-6872-3
• Length: 3 feet (914 mm)
• Material: High-temperature quartz fibers
• Compatible Scanners: Fireye 95UV (InSight II), 85UV (InSight), and 45UVFS
• Minimum Bend Radius: 10-inch loop to prevent kinking
• Maximum Tension: 30 lbs during installation

Applications

The 61-6872-3 is primarily used in power generation, industrial boilers, and process heating systems. It is essential for monitoring flames on burners with movable vanes or where the scanner cannot be mounted directly on a sight pipe. It is commonly employed with Fireye InSight and InSight II scanners to ensure reliable flame safeguard monitoring in obstructed burner zones.