Description
Product Description
The LG1093AC05 from Honeywell is a precision ultraviolet flame detection device engineered for continuous combustion monitoring in gas turbine systems. Utilizing a Geiger-Mueller phototube, it detects ultraviolet radiation emitted by hydrocarbon flames within a solar-blind spectrum, ensuring accurate operation without interference from ambient light sources.
Designed for harsh industrial environments, this sensor delivers rapid flame status feedback and long operational stability, making it suitable for safety-critical applications in power generation and rotating equipment.
Key Technical Characteristics
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Model: LG1093AC05
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Detection Principle: Geiger-Mueller UV phototube
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Spectral Sensitivity: 180–260 nm (solar-blind range)
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Flame Detection Response: approximately 0.1 seconds
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Flame Failure Response: ≤0.2 seconds
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Operating Temperature Range: –40°C to +176°C
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Output Configurations:
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Typical Service Life: up to 10,000 hours MTBF
Performance and Design Features
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Solar-blind UV detection minimizes false signals from visible and infrared radiation
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High sensitivity to hydrocarbon flame signatures ensures reliable ignition verification
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Fast response supports turbine trip and safety interlock systems
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Rugged construction for elevated temperature and vibration environments
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Flexible electrical outputs for integration with control and protection systems
Application Areas
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Gas turbine combustion monitoring
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Industrial compressors and driver units
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Power plant burner management systems (BMS)
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Petrochemical process heating systems
FAQ
Q: What makes this sensor “solar-blind”?
A: It operates exclusively in the 180–260 nm UV band, which is not present in natural sunlight at ground level, eliminating false positives from ambient light.
Q: Is the sensor suitable for continuous high-temperature operation?
A: Yes, it is rated for operation up to 176°C, making it appropriate for turbine enclosures and combustion chambers.
Q: What output type should be selected?
A: The choice depends on system requirements—transistor output is typically used for PLC interfacing, while relay outputs are preferred for direct control circuits.
