GE

E Part Number: 261A1812P013 Ultraviolet Flame Detector Complete Assembly

GE Part Number: 261A1812P013

Original OEM Model: LG1093AA26

Manufacturer: Honeywell

Product Background

LG1093 series is a classic ultraviolet flame sensor developed by Honeywell specifically for heavy‑duty gas turbines and widely deployed on GE gas turbine units. GE Vernova does not manufacture this probe in‑house; it procures complete Honeywell assemblies and assigns its own internal spare‑part ordering number 261A1812P013 for GE original‑equipment spare‑parts supply chain.

• LG1093AA26: Honeywell original complete assembly part number, including sensor head plus 18.6 m (61 ft) orange Teflon‑shielded cable, CE‑compliant version.
• 261A1812P013: GE Vernova spare‑part reference number, functionally equivalent to LG1093AA26 for direct field replacement. Related variant: 261A1812P012 corresponds to LG1093AA24 (4.9 m cable), differing only in cable length.
• Sensing principle: Geiger‑Müller UV phototube detecting flame ultraviolet spectrum from 180‑260 nm. Insensitive to sunlight and black‑body infrared thermal radiation from furnace walls for superior false‑alarm immunity.
• Mechanical interface: 3/4‑NPT internal thread mounting. Operating temperature range ‑40 °F ~ 350 °F; window pressure rating 150 psig. High‑temperature Teflon‑shielded cable designed for direct integration with GE Mark‑VI / Mark‑VIe gas‑turbine control systems.
• Application note: Gas‑turbine combustor‑specific flame scanner. Cannot operate standalone; must pair with matching flame amplifier EG1033 to condition signals before feeding to turbine protection system.

GE Vernova 261A1812P013

Model Breakdown

1. 261A1812: Base part series for GE Vernova flame‑sensor assemblies
2. P013: GE revision suffix, mapping to Honeywell LG1093AA26 with 61 ft (18.6 m) cable, CE‑certified finished assembly
3. LG1093: Honeywell series code for gas‑turbine dedicated UV flame‑sensor family
4. AA: Cable construction code for orange Teflon‑shielded cable
5. 26: Cable‑length designation for 61‑foot (18.6 meter) cable variant

Main Functions

1. Ultraviolet flame detection: Geiger‑Müller UV phototube captures 180‑260 nm ultraviolet radiation emitted by hydrocarbon combustion to discriminate flame‑on / flame‑out status. Immunity against furnace black‑body infrared thermal radiation minimizes false trips.
2. Raw pulse‑signal output: Delivers raw pulse signals to external EG1033 flame amplifier for signal conditioning, then to GE Mark‑VI / Mark‑VIe control system for flame evaluation. No native 4‑20 mA analog output.More products: www.plcva.com
3. Harsh‑environment robustness: Stainless‑steel sensor head with 3/4‑NPT mounting thread. Wide operating‑temperature range and vibration resistance. High‑temperature Teflon‑shielded cable resists heat, oil contamination and electromagnetic interference inside turbine enclosures.
4. Flame‑loss safety signal acquisition: Continuously monitors combustor flame; validates successful ignition during startup; detects unexpected flame‑out during operation and sends status to turbine protection system to initiate fuel shut‑off and unit interlock shutdown and prevent deflagration hazards.
5. Multi‑fuel compatibility: Works with natural gas, light fuel oil and heavy fuel oil diffusion flames, compatible with GE Frame5, Frame6, Frame7 heavy‑duty gas‑turbine combustors.
6. Complete‑assembly supply: Sensor head and cable are hermetically integrated, non‑repairable; full‑unit replacement required upon failure.

Applications

1. GE heavy‑duty gas turbines (primary application): Combustor flame supervision for Frame5, Frame6, Frame7 units. Multiple probes installed per unit for ignition confirmation, continuous flame monitoring and flame‑loss protection, interfaced with Mark‑VI / Mark‑VIe turbine protection control system.
2. Combined‑cycle power plants: Combustion‑safety protection for gas‑steam combined‑cycle power blocks, preventing deflagration risks from unburned‑fuel accumulation after flame‑out.
3. Large‑scale industrial combustion equipment: Flame‑safety monitoring for large process heaters, cracking furnaces and incinerators for diffusion‑type flames.
4. Petroleum & petrochemical plants: Burner flame detection for process heaters and refinery furnaces within classified hazardous locations.

Understand the lowest price, please contact via email: plcvarious@foxmail.com

More products: www.plcva.com

Many products are not yet on the shelves please contact us for more products.