61-6694-1 Fireye Scanner

Overview

The Fireye 61-6694-1 is an ultraviolet (UV) flame scanner designed for use with fiber optic assemblies in industrial burner management systems. Part of the Signature Scanner line, it is engineered to detect the presence or absence of a target flame in single or multi-burner environments. This specific model is a component of the 45UVFS1 series, utilizing a “super-blue” silicon cell to provide high sensitivity to UV radiation while discriminating against background radiation and adjacent burner flames.

Features

• Fiber Optic Compatibility: Designed specifically for integration with fiber optic cable bundles to monitor flames in hard-to-reach locations or high-temperature zones.
• Flame Signature Analysis: Utilizes a microprocessor to learn and store the unique frequency and amplitude “signature” of a target flame for superior discrimination.
• Super-Blue Silicon Cell: Highly sensitive to UV radiation prevalence in gaseous flames and adaptable for coal and oil flames.
• Automatic Signal Amplification: Built-in circuitry automatically adjusts for both high and low-amplitude flames to maintain a consistent signal.
• Integrated Display and Keypad: Features an eight-character LED display and a three-button keypad for easy programming and system setpoint review.

Specifications

• Model Number: 61-6694-1
• Scanner Type: 45UVFS1 (Ultraviolet Flame Signature Scanner)
• Sensing Technology: Super-blue silicon photodiode
• Power Supply: 24 VDC (typically provided by the control unit)
• Housing Material: Cast aluminum with a black textured finish
• Operating Temperature: -40 degrees F to 150 degrees F (-40 degrees C to 65 degrees C)
• Sensitivity Range: 2200 to 2600 angstroms
• Weight: Approximately 4 lbs (scanner only)

Applications

The 61-6694-1 is primarily used in large industrial boilers, power plants, and process heating systems where traditional line-of-sight mounting is impractical. It is designed to work in conjunction with Fireye 25SU3 and 25SU5 burner management control systems. Its ability to discriminate between target and background flames makes it ideal for multi-burner configurations firing various fuels, including natural gas, oil, and coal.