{"product_id":"honeywell-lg1093aa44-lg1093-uv-flame-sensor","title":"Honeywell LG1093AA44 LG1093 UV Flame Sensor","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eEngineered for heavy-duty gas turbine combustion monitoring, the \u003cstrong\u003eHoneywell LG1093AA44\u003c\/strong\u003e 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.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHighly Sensitive Phototube:\u003c\/strong\u003e Specifically tuned to target the 180 to 260 nm UV spectrum for reliable flame detection.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSolar Blind Design:\u003c\/strong\u003e Prevents false positive readings from sunlight, infrared emissions, or surrounding high-temperature black-body radiation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIntegrated Shielded Cable:\u003c\/strong\u003e Includes a 16-foot (4.9 m) Teflon-shielded cable with a 1-inch external conduit thread for structural protection in harsh environments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePressure-Resistant Optics:\u003c\/strong\u003e Built-in optical viewing window rated for system pressures up to 10 bar (150 psi).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExplosive Atmosphere Approvals:\u003c\/strong\u003e Certified for Zone 1 and Zone 2 environments (ATEX EEx d IIC T3) and Class I, Division 1 and 2 hazard areas.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003eGeneral Electric (GE) and GE-licensee industrial gas turbines.\u003c\/li\u003e\n  \u003cli\u003eTurbine-driven compressor stations in gas pipeline transmission.\u003c\/li\u003e\n  \u003cli\u003eUtility-scale power generation combustion monitoring systems.\u003c\/li\u003e\n  \u003cli\u003eHazardous-area industrial burners and combustion processes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748; text-align: left;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #1a365d;\"\u003e\n        \u003cth style=\"padding: 0.75rem; font-weight: bold;\"\u003eSpecification Parameter\u003c\/th\u003e\n        \u003cth style=\"padding: 0.75rem; font-weight: bold;\"\u003eValue \/ Rating\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eHoneywell\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eModel\/Part Number\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eLG1093AA44\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eSensor Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eGeiger-Mueller UV Phototube\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eSpectral Detection Range\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e180 to 260 nm\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eFlame Present Response Time\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e0.1 seconds (typical)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eFlame Loss Response Time\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e0.2 seconds (maximum)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eOperating Temperature Range\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e-40 to 176 degC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eIntegrated Cable Length\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e16 feet (4.9 meters)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eCable Shielding Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eTeflon shielded with 1-inch external conduit thread\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eMechanical Connection\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e3\/4 inch internal NPT\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eWindow Pressure Rating\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e10 bar (150 psi)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eSystem Interface\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eEG1033 Series Amplifiers (EG1033AA \/ AB \/ AC)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eMaximum Loop Distance\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eUp to 330 meters (1000 feet) from sensor to amplifier\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eHazardous Approvals\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eATEX (EEx d IIC T3, Zone 1 \u0026amp; 2), FM (Class I, Div 1\/2, Groups B, C, D)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e3.0 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eEmpirical Engineering Insights\u003c\/h3\u003e\n\u003ch3\u003eAlternative Models \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThe 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.\u003c\/p\u003e\n\n\u003ch3\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\u003cstrong\u003eCRITICAL APPLICATION EXCLUSION:\u003c\/strong\u003e 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.\u003c\/p\u003e\n\n\u003ch3\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eWhen 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.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 1rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cp style=\"color: #9b2c2c; margin: 0; font-weight: bold;\"\u003eCRITICAL WARNING: HIGH-VOLTAGE \u0026amp; SYSTEM COUPLING\u003c\/p\u003e\n  \u003cp style=\"color: #9b2c2c; margin: 0.5rem 0 0 0;\"\u003eBefore 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.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; flex-direction: column; gap: 1rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 1.75rem; height: 1.75rem; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0;\"\u003e1\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003eInspect the optical viewing window on the LG1093AA44 for physical scratches, oil film, or debris. Clean only with optical-grade solvent if necessary.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 1.75rem; height: 1.75rem; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0;\"\u003e2\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003eApply high-temperature, anti-seize compound to the 3\/4 inch NPT threads. Screw the sensor securely into the mounting port on the turbine casing, ensuring a gas-tight seal.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 1.75rem; height: 1.75rem; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0;\"\u003e3\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003eRoute the 16-foot Teflon integrated cable through a continuous 1-inch rigid or flexible conduit. Connect the shield line to the dedicated instrumentation ground terminal inside the local junction box.\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":52679401242987,"sku":"LG1093AA44","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/lg1093aa44-pbxba3oj2hl_6bc2e096-c427-44c6-a0dd-2bae0abb0c63.jpg?v=1765958338","url":"https:\/\/www.plcprotech.com\/id\/products\/honeywell-lg1093aa44-lg1093-uv-flame-sensor","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}