{"product_id":"honeywell-lg1093aa03-uv-flame-monitor-system","title":"Honeywell LG1093AA03 UV Flame Monitor System","description":"\u003ch2\u003eHoneywell LG1093AA03 UV Flame Monitor System\u003c\/h2\u003e\n\u003cp\u003eConfigured for fast ultraviolet radiation sensing in industrial burner management systems, the \u003cstrong\u003eHoneywell LG1093AA03\u003c\/strong\u003e (\u003cstrong\u003eLG1093AA03\u003c\/strong\u003e UV Flame Monitor System) provides direct physical\/electrical execution by detecting UV emission from combustion flames across gas turbines and industrial boilers.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eLG1093AA03\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eStandard industrial flame sensor assembly mass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard 3\/4-inch NPT housing assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-40 to +177 deg C (-40 to +350 deg F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e350 VDC sensor operating voltage (Amplifier supplied)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDetection Technology\u003c\/td\u003e\n\u003ctd\u003eCold-cathode UV sensor tube (Geiger-Muller principle)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpectral Response Range\u003c\/td\u003e\n\u003ctd\u003e185 to 265 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResponse Time\u003c\/td\u003e\n\u003ctd\u003eLess than 0.1 s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Connection\u003c\/td\u003e\n\u003ctd\u003e3\/4-inch internal NPT thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable Connection\u003c\/td\u003e\n\u003ctd\u003e1.5 m shielded high-temperature cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWindow Pressure Rating\u003c\/td\u003e\n\u003ctd\u003e150 psig at 204 deg C (10.3 bar at 400 deg F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003e4-20 mA HART Loop Protocol and Flame Signal Integration\u003c\/h3\u003e\n\u003cp\u003eIn modern process control architectures, flame safeguard receivers translate raw UV detector ionization pulses into standardized system signals. The \u003cstrong\u003eHoneywell LG1093AA03\u003c\/strong\u003e connects directly to matching Honeywell EG1033 series flame monitor amplifiers, which process cold-cathode tube discharge frequencies into isolated relay contacts and 4-20 mA HART loop protocol outputs for DCS integration. Dedicated channel-to-channel isolation within the flame safeguard module shields the main process controller from high-voltage excitation surges while continuously transmitting flame signal intensity data over standard analog wiring runs.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the cold-cathode sensor tube differentiate between actual flame radiation and ambient furnace background heat?\u003c\/p\u003e\n\u003cp\u003eA: The sensor tube responds strictly to ultraviolet light in the narrow 185 to 265 nm spectral band emitted by active combustion. It remains completely blind to continuous infrared radiation emitted by glowing hot furnace refractory brickwork, preventing false flame indications.\u003c\/p\u003e\n\u003cp\u003eQ: What physical installation step is required to maintain optical window clarity and prevent sensor overheating?\u003c\/p\u003e\n\u003cp\u003eA: Install a continuous purge air line into the sight pipe connection upstream of the 3\/4-inch NPT mounting threads. Purge airflow keeps the optical sight window free of soot accumulation while maintaining sensor head temperatures well below the 177 deg C maximum limit.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eThread the sensor head onto a sight pipe aimed directly at the intersection of the primary flame cone and the burner tip. Ensure the sight path remains unobstructed by fuel nozzles or mechanical structural supports across all firing rates.\u003c\/p\u003e\n\u003cp\u003eRoute the 1.5 m shielded high-temperature cable through dedicated metal conduit directly to the flame safeguard amplifier cabinet. Maintain continuous cable shield drain connection to the system earth ground at the amplifier housing end only to prevent ground loop interference. During burner maintenance or window inspection, isolate all burner management system power supplies before removing the sensor from the sight pipe assembly.\u003c\/p\u003e","brand":"HONEYWELL","offers":[{"title":"Default Title","offer_id":51284178469176,"sku":"LG1093AA03","price":250.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0893\/1616\/3896\/files\/LG1093AA031.jpg?v=1761547925","url":"https:\/\/www.automodulexpert.com\/products\/honeywell-lg1093aa03-uv-flame-monitor-system","provider":"AutoModuleXpert Ltd.","version":"1.0","type":"link"}