61-4842-2 Fireye Fiber Optic

Overview

The Fireye 61-4842-2 is a 9-foot (2743 mm) glass fiber optic bundle designed for industrial flame safeguard systems. It serves as a critical optical link, transmitting ultraviolet (UV) or infrared (IR) energy from the burner flame to a remotely mounted flame scanner. This is particularly useful in complex burner configurations where the direct line of sight is obstructed by diffusers, burner components, or sight pipe misalignment.

Features

• Flexible glass fiber construction for reliable signal transmission in challenging physical layouts.
• Stabilized optical routing to ensure consistent flame signal quality.
• Durable stainless steel outer carrier and lens holder head for industrial environments.
• Designed to extend scanner mounting external to the burner, protecting electronics from extreme heat or vibration.
• Compatible with various Fireye flame scanners, including the InSight and Phoenix series.

Specifications

• Part Number: 61-4842-2
• Length: 9 feet (2743 mm)
• Fiber Material: High-temperature glass (suitable for infrared/visible light)
• Outer Carrier: Flexible stainless steel with rigid stainless steel rear portions
• Mounting: 1/2 inch NPT mounting lens holder head
• Max Temperature (Optics): 800 degrees Fahrenheit (427 degrees Celsius)
• Field of View: 13 sq. in. at 3 feet (100 sq. cm. at 1.0 meter)
• Shipping Weight: Approximately 1.0 to 3.3 lbs (0.45 to 1.5 kg)

Applications

The 61-4842-2 is primarily used in industrial burner and boiler applications where a conventional surface-mounted scanner cannot view the flame directly. It is commonly paired with Fireye 48PT2-100X, 95IR, 85IR, 45FS, and 45RM scanners. Typical environments include power plants, large commercial boilers, and process heaters where the target flame is obscured by internal burner geometry or where it is undesirable to mount a scanner directly in the blast tube.