Honeywell LG1093AA44 Ultraviolet UV Flame Detector Sensor

Honeywell LG1093AA44 is an ultraviolet UV flame sensor designed for industrial burner flame monitoring systems. It detects ultraviolet radiation emitted by flame combustion, transmitting flame presence or loss signals to EG1033 amplifier for boiler and furnace safety interlock control.

This explosion-proof sensor features internal current limiting resistor and reverse polarity protection. It is installed directly on burner sight port, widely used in power plant boiler, refinery and petrochemical furnace flame monitoring cabinet spare replacement and retrofit projects.

Data Parameters

• 1. Brand: Honeywell.

• 2. Model: LG1093AA44.

• 3. Product Type: UV Flame Detector Sensor.

• 4. Series: LG1093 flame monitor system, matched with EG1033 amplifier.

• 5. Spectrum: UV 1850 ~ 2650 angstrom ultraviolet band.

• 6. Supply: 350VDC supplied by EG1033 flame amplifier.

• 7. Protection: Explosion-proof, built-in 511Ω current limiting resistor & diode reverse protection.

• 8. Thread: 3/4" NPT internal thread for burner mounting.

• 9. Certification: FM Class I Div 1 & 2, Groups B,C,D explosion-proof approval.

• 10. Operating Temperature: -40℃ ~ +85℃.

Core Functions

• 1. Detect UV light generated by fuel flame, identify flame on / flame out status for gas, oil burners and industrial furnaces.

• 2. Convert flame UV signal into electric signal and send to EG1033 amplifier for processing and safety trip logic judgment.

• 3. Internal current limiting and reverse polarity protection to protect sensor from wiring fault damage in harsh industrial environment.

• 4. Explosion-proof housing design for hazardous area installation inside boiler and furnace combustion chamber sighting tube.

• 5. Cooperate with flame amplifier to trigger fuel cut-off interlock immediately once flame loss is detected to prevent explosion risk.

Application Scenarios

• 1. Power plant boiler burner UV flame detection spare sensor replacement.

• 2. Petrochemical refinery heating furnace and cracking furnace flame monitoring upgrade project.

• 3. Cement, metallurgy and chemical plant industrial furnace safety interlock renewal.

• 4. Hazardous area burner safety control spare inventory backup.

• 5. Aging Honeywell LG1093 series flame sensor replacement and maintenance project.

FAQ

• 1. Q: What is Honeywell LG1093AA44?
      A: It is Honeywell LG1093 series ultraviolet flame sensor, works with EG1033 amplifier to monitor burner flame status for boilers and furnaces.

• 2. Q: What signal does this sensor detect?
      A: It detects ultraviolet light from combustion flame; not affected by hot refractory infrared radiation interference.

• 3. Q: Can it be hot swapped?
      A: Must shut down burner fuel supply and cut off 350VDC power before disassembly; live removal is strictly forbidden.