61-4893 Fireye Outer Assembly

Overview

The Fireye 61-4893 is a 7-foot (2134 mm) outer carrier assembly designed for use with Fireye fiber optic flame scanner systems, including the InSight and InSight II series. It serves as the permanent protective housing that is fastened to the boiler, providing a conduit for the inner carrier assembly which contains the sensitive fiber optic bundles and lenses. This assembly is specifically engineered for burners where movable vanes, air compartments, or burner nozzles would otherwise obstruct the line of sight for a conventional surface-mounted scanner.

Features

• 7-foot (2134 mm) nominal length to access deep combustion zones within industrial boilers.
• Constructed with a 303 stainless steel hexagonal mounting head for high-temperature resistance and durability.
• Features a flexible stainless steel forward section and a rigid stainless steel or black iron pipe rear section.
• Designed to house both glass and quartz inner carrier assemblies.
• Provides a stable, permanently mounted platform to maintain precise alignment with the target flame.
• Includes integrated components such as a flange and air port for cooling or purging requirements.

Specifications

• Model Number: 61-4893
• Manufacturer: Fireye
• Nominal Length: 7 feet (2134 mm)
• Housing Material: 303 Stainless Steel (Head), Flexible and Rigid Stainless Steel (Body)
• Compatibility: Fireye InSight, InSight II, and Phoenix series scanners
• Optics Compatibility: Glass or Quartz fiber optic bundles
• Mounting: 1 1/2 inch hexagonal head
• Application Temperature: Suitable for high-heat industrial furnace environments

Applications

The 61-4893 outer carrier assembly is primarily used in industrial and commercial power generation and heating systems. It is ideal for monitoring individual burner flames in complex boiler configurations where the flame may move or be obscured by burner components like tilting nozzles or air vanes. It is commonly applied in multi-burner furnaces and utility boilers to ensure reliable flame detection for burner management and safety safeguard systems.