Designing Power and Communication Redundancy
Design control-system redundancy by mapping shared dependencies, separating power and network paths, defining failover behavior, exposing degraded operation, and proof-testing every tolerated fault.
Manufacturer: Honeywell
Product No.: LG1093AA44
Country of origin:United States
Product Type: UV Flame Sensors
Payment: T/T, Western Union
Weight: 3000g
Shipping port: Xiamen
Warranty: 12 months
Engineered for heavy-duty gas turbine combustion monitoring, the Honeywell LG1093AA44 is an industrial ultraviolet (UV) flame sensor optimized for power generation and compressor applications. Utilizing a specialized Geiger-Mueller type sensor phototube, this unit is designed to detect the UV radiation emitted by hydrocarbon flames while remaining completely solar-blind and highly tolerant to black-body radiation. Proven over decades of deployment on General Electric and GE-licensee gas turbines, this sensor interfaces seamlessly with EG1033 series amplifiers to provide critical flame status feedback to your turbine control system.
| Specification Parameter | Value / Rating |
|---|---|
| Manufacturer | Honeywell |
| Model/Part Number | LG1093AA44 |
| Sensor Type | Geiger-Mueller UV Phototube |
| Spectral Detection Range | 180 to 260 nm |
| Flame Present Response Time | 0.1 seconds (typical) |
| Flame Loss Response Time | 0.2 seconds (maximum) |
| Operating Temperature Range | -40 to 176 degC |
| Integrated Cable Length | 16 feet (4.9 meters) |
| Cable Shielding Type | Teflon shielded with 1-inch external conduit thread |
| Mechanical Connection | 3/4 inch internal NPT |
| Window Pressure Rating | 10 bar (150 psi) |
| System Interface | EG1033 Series Amplifiers (EG1033AA / AB / AC) |
| Maximum Loop Distance | Up to 330 meters (1000 feet) from sensor to amplifier |
| Hazardous Approvals | ATEX (EEx d IIC T3, Zone 1 & 2), FM (Class I, Div 1/2, Groups B, C, D) |
| Shipping Weight (Calculated) | 3.0 kg |
The LG1093AA44 is designed exclusively to interface with Honeywell EG1033 amplifier modules. It is highly recommended to verify whether your specific turbine control application requires the transistor open-collector output of the EG1033AA or the SPDT relay contacts of the EG1033AB/AC units, as the sensor's baseline signal output is passive and requires active amplification to integrate with your PLCs or safety instrumented systems.
CRITICAL APPLICATION EXCLUSION: The standard Honeywell LG1093 series, including this LG1093AA44 model, will not reliably operate on Dry Low NOx (DLE) gas turbines (such as GE/NP DLE configurations). DLE turbines require specialized, pre-selected sensors with alternative spectral thresholds. Attempting to use a standard LG1093 sensor in DLE environments will lead to frequent flame-out false alarms and operational instability.
When routing the integrated 16-foot Teflon-shielded cable, always run the conduit separate from high-voltage motor starters, ignition cables, or high-frequency variable speed drives (VSDs). Electromagnetic coupling on the sensor signal line can distort the high-impedance pulse signals generated by the Geiger-Mueller phototube, resulting in false flame-present signals during startup phases.
CRITICAL WARNING: HIGH-VOLTAGE & SYSTEM COUPLING
Before removing or replacing an existing flame sensor, verify that the turbine is fully shutdown and de-energized. High voltages are present on the sensor lines when connected to active EG1033 amplifiers. Ensure the mounting sight pipe has cooled completely and that system pressure is depressurized below 10 bar before extraction.
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Returns & Warranty
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| Country of origin |
United States
|