45UV5-1101 Fireye Unit Assembly

Overview

The Fireye 45UV5-1101 is a self-checking ultraviolet (UV) flame scanner designed for industrial burner management and flame safeguard applications. It is a flame-sensing device that detects the presence or absence of a flame by monitoring UV radiation. The self-checking feature includes an internal electromagnetic shutter that periodically interrupts the line of sight to the UV sensor, allowing the electronics to verify proper operation and ensure fail-safe performance. This makes it suitable for continuous burner operation where the burner may not cycle for more than 24 hours.

Features

• Self-checking mechanism with an internal shutter for continuous diagnostics and fail-safe operation.
• High-sensitivity UV Geiger-Muller detector tube.
• Solar blind technology, meaning it does not respond to infrared radiation or visible light.
• 1-inch BSP mounting for secure installation on burner sight pipes.
• Rugged die-cast aluminum housing suitable for harsh industrial environments.
• Designed for use with self-checking Fireye amplifiers to provide flame failure protection.

Specifications

• Model: 45UV5-1101
• Detection Technology: Ultraviolet (UV) Radiation
• Optical Range: 190 to 270 nanometers
• Mounting: 1-inch BSP (British Standard Pipe)
• Power Frequency: 50 Hz
• Temperature Range: -40 degree F to 200 degree F (-40 degree C to 93 degree C)
• Purge Air Requirement: 4 SCFM at the 3/8-inch housing inlet or 1-inch wye fitting
• Housing Material: Cast Aluminum
• Weight: Approximately 4 to 7 lbs (depending on configuration)

Applications

The 45UV5-1101 is used to detect UV emissions from fossil fuel flames, including natural gas, propane, methane, butane, kerosene, and light oil fuels. It is commonly applied in single and multi-burner industrial settings such as electric utility boilers, power boilers, and large industrial furnaces or incinerators. It is designed to work exclusively with compatible Fireye control systems and amplifiers, such as the 25SU3-5166 and 25SU5 series, to ensure safe burner management and flame supervision.