4-314-1 Fireye Tube

Overview

The Fireye 4-314-1 is a precision-engineered ultraviolet (UV) sensing tube designed as a high-sensitivity replacement component for industrial flame monitoring systems. It functions as the critical sensing element within a flame scanner, detecting the specific UV radiation wavelengths emitted during combustion. Constructed with a gas-filled quartz envelope, the tube ionizes when exposed to UV light, creating current pulses that are processed by a flame safeguard control to verify the presence of a flame. This ensures safe and reliable burner operation by providing immediate flame failure detection in demanding commercial and industrial environments.

Features

• High-sensitivity ultraviolet detection specifically tuned for fossil fuel flames.
• Gas-filled quartz tube construction for stable and accurate signal transmission.
• Direct OEM replacement part ensuring seamless integration and system reliability.
• Durable design capable of withstanding the high-temperature environments of burner assemblies.
• Simplifies maintenance by allowing for component-level replacement rather than full scanner housing replacement.

Specifications

• Part Number: 4-314-1
• Sensing Technology: Ultraviolet (UV) radiation detection
• Spectral Range: Approximately 2200 to 2600 Angstroms
• Operating Voltage: Typically 560 VAC (S1-S2 electrodes)
• Maximum Operating Temperature: 200 degree F (94 degree C)
• Minimum Operating Temperature: -40 degree F (-40 degree C)
• Humidity Limit: 85% RH maximum non-condensing
• Compatible Scanner Series: Fireye 45UV2, 45UV3, and 45UV5 (models -1005 through -1009)

Applications

The Fireye 4-314-1 UV tube is primarily used in industrial and commercial burner management systems to monitor gas-fired and oil-fired flames. It is the designated replacement sensing element for Fireye 45UV series scanners, including the 45UV2-1020, 45UV3-1050, and specific 45UV5 self-checking models. It is commonly applied in boilers, furnaces, and ovens where precise flame verification is required to maintain safety protocols and prevent the accumulation of unburned fuel.