Honeywell LG1093AC05 Flame Detector

The Honeywell LG1093AC05 is part of the LG/EG flame monitoring system, designed to detect ultraviolet (UV) radiation emitted by hydrocarbon flames. With over 35 years of proven performance on General Electric (GE) and GE licensee gas turbines, this detector ensures fast and reliable flame detection in critical industrial applications.

Key Features & Benefits

• High-Sensitivity Detection:
  Rapid response time of 0.1 seconds (typical) for flame presence
  Flame loss response time of 0.2 seconds max

• Robust Sensor Technology:
  Utilizes a Geiger Mueller-type sensor phototube for UV detection in the 180–260 nm spectrum

• Long-Distance Operation:
  Operates over distances of up to 330 m (1,000 ft) from sensor to amplifier

• Wide Temperature Range:
  Functional from -40°C to +176°C, suitable for extreme environments

• Durable Design:
  Includes 24 ft (7.3 m) of 2-conductor armored cable
  Viewing window rated at 428 mbar (6.3 psi)
  MTBF: 10,000 hours, with over 1 billion cumulative operating hours
  Shelf Life: 2 years

Technical Specifications

• Sensor Type: Geiger Mueller-type UV sensor

• Detection Range: 180–260 nm UV spectrum

• Response Times:

• Flame Present: 0.1 sec (typical)

• Flame Loss: 0.2 sec (max)

• Operating Distance: Up to 330 m (1,000 ft)

• Temperature Range: -40°C to +176°C

• MTBF: 10,000 hours

• Shelf Life: 2 years

• Sensor Dimensions: 1.73" O.D. x 0.14" flange width

• Cable: 2-conductor armored cable, 24 ft (7.3 m)

Electrical & Amplifier Compatibility

• Compatible Amplifiers:

• EG1033AA: Transistor open collector

• EG1033AB / EG1033AC: SPDT relay contacts

• Voltage Requirements:

• 28 VDC

• 20–35 VDC

• 115 VAC

Certifications & Approvals

• CE Mark (European Directives):

• EMC 89/336/EEC

• LVD 73/23/EEC

• ATEX 94/9/EC (EEx d IIA T3 or EEx d IIC T3, Zone 1 and 2)

• Factory Mutual (FM) Approvals:

• Class I, Divisions 1 & 2, Groups B, C, and D

Additional Notes

• Low-NOx Limitation:
  The LG1093 series may not perform reliably on GE/NP DLE gas turbines (Low-NOx). These applications require pre-selected LG1093 units, which are not available directly through Honeywell.

Physical Characteristics

• Unit Weight: 0.91 kg

• Shipping Weight: 3 kg