Honeywell LG1093AA24 UV Flame Sensor Detector 261A1812P012

Honeywell LG1093AA24 UV Flame Sensor Detector Details:

The Honeywell LG1093AA24 is a durable ultraviolet (UV) flame sensor designed for the detection of hydrocarbon flames in challenging industrial settings, converting UV radiation into pulse signals for accurate flame presence monitoring. It demonstrates superior performance in gas turbine applications by offering heightened sensitivity to UV emissions (190-290 nm range) while effectively mitigating ambient light interference, hence ensuring dependable operation devoid of false alarms.

This sensor, equipped with a fused silica window and a stainless steel housing (1.4571), endures harsh temperatures of up to 177°C (350°F) and high pressures of up to 21 bar at 316°C, while providing IP-rated protection against dust and water ingress. The 80° field of view provides extensive flame coverage from a single installation location, and its rapid response time of less than 200 ms facilitates prompt flameout detection, thereby averting fuel accumulation and dangerous explosions during startup or load fluctuations.

Engineered as a direct substitute for OEM components such as GE 261A1812P012 or C-7012F, it connects effortlessly with turbine control amplifiers functioning at 260-350 VDC (optimal at 325 VDC), generating pulse outputs exceeding 15 Hz in continuous flame for simplified thresholding in control systems. Minimal background noise (<5 counts/min under ambient illumination) and a discharge initiation voltage <260 VDC guarantee reliable performance, with a demonstrated lifespan of 16,000 operating hours or 2 years.

The LG1093AA24 is vibration-resistant up to 2.5g and features a 4.9m PTFE cable with colour-coded leads (GRN for ground, BLK for positive, YEL for negative). It installs using a 3/4″ NPT for conduit systems and adheres to ATEX/Ex d IIC T3 Gc standards for hazardous environments. Optimally suited for preventive maintenance in power generation, it generates flame intensity pulses corresponding to UV strength, facilitating safe shutdowns and enhancing combustion efficiency.

Key Features:

• Hydrocarbon fires that are very sensitive to ultraviolet light (250 cpm = 10-13 W/cm² at 200 nm) can be detected using this method (190-290 nm).
• A wide 80° field of view ensures that the flames are completely covered.
• A housing made of durable stainless steel with a fused silica window that is pressure-sealed to 316°C and 21 bar.
• Reliable flame/no-flame choices are made with a fast response time of less than 200 ms and minimal background noise.
• Long lifespan: at least two years or sixteen thousand hours.
• Equipped to withstand accelerations of up to 2.5 g.
• ATEX labelled for use in potentially dangerous environments (Ex d IIC T3 Gc).
• An easy-to-install PTFE cable measuring 4.9 meters in length.

Applications in Industry:

1) Heavy-duty gas engines (GE frames 5, 6, 7, and 9): power plants on land and platforms at sea for finding flameouts during start-up and operation.

2) Controlling combustion in chemical, petrochemical, pharmaceutical, and food preparation plants is what industrial boilers and burners do.

3) Fire safety in industrial ovens used to melt metal, make glass, and heat cement.

4) Marine propulsion: Gas turbine engines are used for major propulsion and extra power on ships and offshore vessels.

5) Ground-based power plants and peaking plants that use jet engines and aero-derivative turbines.

6) Fire detection devices are used for extra security in oil and gas facilities, refineries, and power plants.