61-4842-1 Fireye Fiber Optic

Overview

The Fireye 61-4842-1 is a 7-foot (2134 mm) glass fiber optic bundle designed for use in industrial flame monitoring systems. It is engineered to facilitate flame detection in burners where the line of sight is obstructed by diffusers, burner nozzles, or other internal apparatus. This fiber optic assembly transmits flame radiation from the combustion zone to a remotely located scanner, ensuring reliable flame safeguard even in complex burner configurations.

Features

• Constructed with high-quality glass fibers for efficient light transmission.
• Enclosed in a durable flexible stainless steel housing to protect the bundle from mechanical damage.
• Equipped with a blue marker and specific ferrules to identify the “hot” and “cold” ends for proper installation.
• Designed to work with objective lens assemblies to optimize the optical field of view.
• Flexible design allows for routing through windboxes and tight boiler spaces where conventional scanners cannot be mounted.

Specifications

• Model Number: 61-4842-1
• Length: 7 feet (2134 mm)
• Fiber Material: Glass
• Maximum Temperature (Glass): 800 degrees F (427 degrees C) at the “hot” end
• Optical Field of View: 13 sq. in. at 3 feet
• Compatibility: Used with Fireye 95IR, 85IR, 45FS, and 45RM series scanners
• Shipping Weight: Approximately 1.5 kg (3.3 lbs)

Applications

The 61-4842-1 glass fiber optic bundle is primarily used in utility and industrial boiler applications. It is essential for monitoring flames in burners where movable vanes or air compartments would otherwise obscure the target flame. It is compatible with Fireye InSight II and other infrared-sensing flame scanners, providing a critical safety link in burner management systems by ensuring continuous and accurate flame presence detection.