61-6872-10 Fireye Inner Assembly

Overview

The Fireye 61-6872-10 is a 10-foot (3048 mm) quartz fiber optic bundle designed for industrial flame monitoring and safeguard systems. It is an essential component for installations where a direct line of sight between the burner flame and a surface-mounted scanner is obstructed by burner hardware, diffusers, or sight pipe misalignment. This bundle transfers infrared or ultraviolet radiation from the flame to the scanner electronics assembly located outside the high-temperature windbox environment.

Features

• Flexible fiber optic construction allows for routing through complex burner apparatus and around obstructions.
• High-temperature quartz optics provide superior transmission of flame radiation, specifically for UV and IR spectrums.
• Protective stainless steel cladding ensures durability and mechanical protection against harsh industrial environments.
• Coded ferrules with “H” (Hot) and “C” (Cold) markings, with the cold end featuring a blue marker for proper orientation.
• Direct integration with Fireye InSight II (95 Series), Phoenix, and other compatible flame scanners.

Specifications

• Model Number: 61-6872-10
• Nominal Length: 10 feet (3048 mm)
• Material: Quartz Fiber
• Maximum Temperature (Hot End): 752 F (400 C)
• Optical Field of View: 13 sq. in. @ 3 feet
• Weight: Approximately 1.0 lb
• Sheathing: Flexible stainless steel tubing

Applications

The 61-6872-10 is primarily used in industrial and commercial boiler systems where burner geometry or movable air vanes prevent standard scanner mounting. It is used in conjunction with inner and outer carrier assemblies to monitor flames from gaseous and liquid fuels. It is highly effective in “fireball” monitoring applications where individual burner flames must be discriminated from the general furnace background. Typical compatible scanners include the Fireye 95DSS3, 85UVF, and 45UVFS series.