Honeywell EG1033AA / EG1033AA01 / 261A1812P002 Flame Detector

The Honeywell EG1033AA, including variants EG1033AA01 and 261A1812P002, is a sophisticated ultraviolet (UV) flame detector engineered for industrial combustion safety applications. Designed to monitor flame presence in burners, boilers, gas turbines, and furnaces, this device utilizes advanced UV sensing technology to ensure rapid and accurate flame validation, forming a critical component of process safety systems in power generation, petrochemical, and manufacturing industries.

Technology and Operating Principle

The detector employs a UV-sensitive sensor, typically a Geiger-Müller tube, which is specifically responsive to the narrow band of ultraviolet radiation (180-260 nm) emitted by hydrocarbon flames. This spectral sensitivity allows the device to discriminate between actual flame radiation and background sources such as sunlight, hot refractory materials, or electrical arc welding, minimizing the risk of false alarms. When UV radiation is detected, the sensor triggers an output signal, confirming the presence of a flame.

Key Features and Benefits

• High Sensitivity and Selectivity: The detector accurately identifies flame UV signatures, ensuring reliable operation even in challenging conditions 

• Rapid Response Time: With millisecond-level response, the EG1033AA provides immediate indication of flame loss, enabling swift safety actions to prevent hazardous fuel accumulation

• Wide Operating Temperature Range: Engineered for extreme environments, the unit functions reliably from -40°C to +176°C, suitable for both cold climates and high-heat applications

• Rugged Construction: The corrosion-resistant metal housing with an IP65 rating provides protection against dust and water jets, ensuring durability in harsh industrial settings

• Flexible Output Options: The device supports multiple output types for easy integration into control systems, including analog (4-20mA), discrete transistor, and digital communication via RS-485/Modbus

• Long Service Life: Designed for high reliability, the EG1033AA boasts a Mean Time Between Failures (MTBF) exceeding 10,000 hours

Technical Specifications

Installation and Integration

For optimal performance, the detector should be mounted with a clear line of sight to the target flame, free from obstructions. The flexible output options allow direct integration with Honeywell DCS and safety systems, as well as third-party PLCs and burners. Regular maintenance, such as periodic cleaning of the optical lens, is recommended to maintain sensitivity and prevent false readings.

Typical Applications

The Honeywell EG1033AA series is essential for flame safety in various industrial processes:

• Gas Turbines in Power Generation

• Industrial Boilers and Furnaces

• Petrochemical and Refinery Burners

• Incineration Plants

• Process Heaters in Chemical and Metallurgical Industries