Overview
The Fireye 4-263-1 is a precision-engineered lead sulfide (PbS) replacement sensing cell designed exclusively for use with the Fireye 48PT2 infrared flame scanner. This specialized sensor is a critical component in industrial and commercial burner management systems, providing accurate flame detection by sensing the low-frequency infrared “flicker” characteristic of gas and oil flames. Recognizable by its distinct green color, the Firetron cell ensures safe combustion by verifying the presence of a flame and preventing hazardous conditions.
Features
- High-sensitivity lead sulfide detector optimized for low-flicker frequency infrared signals.
- Direct-fit replacement component designed specifically for the 48PT2 scanner series.
- Advanced sensing technology that enhances system safety and reduces unnecessary downtime.
- Robust construction built for long-term consistency in demanding HVAC and industrial environments.
- Easy-to-install design that allows for quick field replacement within the scanner housing.
Specifications
- Model Number: 4-263-1
- Part Type: Replacement Firetron Sensing Cell
- Compatible Scanner: Fireye 48PT2 (Straight and 90-degree models)
- Color Code: Green
- Detection Type: Infrared (Lead Sulfide)
- Weight: Approximately 0.25 lbs (113.4 g)
- Environmental Rating: Designed to withstand industrial burner temperatures when housed in the 48PT2 scanner.
Applications
The 4-263-1 Firetron cell is used in commercial and industrial flame safeguard systems where accurate burner flame verification is required. It is an essential part for maintaining HVAC systems in power plants, refineries, and manufacturing facilities. The cell works in conjunction with 48PT2 scanners to support various Fireye control systems, including the BurnerLogix, MicroM, Flame-Monitor, FlameWorx, and D-Series controls. It is suitable for monitoring flames produced by a variety of fuels, including natural gas, propane, and light or heavy fuel oils.



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