45UV5-1103 Fireye Unit Assembly

Overview

The Fireye 45UV5-1103 is a self-checking ultraviolet (UV) flame scanner designed for industrial burner management and flame safeguard applications. This high-performance sensor detects the presence or absence of flames by monitoring ultraviolet radiation emitted by the combustion of fossil fuels. It is specifically engineered for multi-burner industrial applications, including electric utility boilers and large furnaces. The self-checking feature utilizes an internal electromagnetic shutter that periodically interrupts the scanner’s line of sight, allowing the system to verify the proper operation of the UV tube and electronic circuitry, thereby preventing false flame signals.

Features

• Self-checking technology with an internal shutter mechanism for automatic diagnostics and enhanced safety.
• High-sensitivity UV-eye detector tube designed to sense ultraviolet radiation in the 2200 to 2600 angstrom range.
• Reliable flame discrimination in multi-burner environments, ensuring only the target burner is monitored.
• Rugged cast aluminum housing with a weather-resistant and industrial-grade construction.
• Integrated 1-inch NPT mounting thread for secure installation on sight pipes.
• Compatible with a wide range of Fireye controls, including the 25SU3 and 25SU5 systems.

Specifications

• Model Number: 45UV5-1103
• Mounting Connection: 1-inch NPT
• Operating Frequency: 50 Hz
• Housing Material: Cast aluminum
• Weight: Approximately 7 lbs (3.2 kg)
• Optical Range: 2200 to 2600 angstroms
• Operating Temperature Range: -40 degree F to 200 degree F (-40 degree C to 94 degree C)
• Purge Air Requirements: 4 SCFM at the 3/8 inch threaded housing inlet
• Optical Field of View: 1 inch per foot (25.4mm per 305mm)
• Power Supply: Typically 120 VAC or 230 VAC (depending on compatible control unit)

Applications

The 45UV5-1103 is ideally suited for monitoring flames from gaseous fuels such as natural gas, propane, methane, and butane, as well as light petroleum distillates like kerosene and diesel. It is commonly employed in:

• Electric utility and power boilers.
• Oil refineries and petrochemical plants.
• Large industrial furnaces and kilns.
• Waste incinerators and combustion systems.
• Multi-burner control systems requiring precise flame discrimination.