Description
Honeywell LG1093AC01 UV Flame Detector for Gas Turbine Flame Monitoring
Core Product Overview
LG1093AC01 is Honeywell UV flame detector (LG series), mainly used for gas turbine and burner flame detection. It adopts Geiger-Müller UV phototube sensor, sensitive to ultraviolet radiation in 180~260nm band, solar-blind design, resistant to hot blackbody radiation interference. It only detects flame UV signal and outputs pulse signal to supporting flame amplifier (such as EG1033) for flame / no-flame judgment. Widely used in power plant gas turbines, industrial boilers, refinery burners. This is a field flame sensor probe, not Experion PKS rack DCS module (different from CC-PCNT01, CC-TUIO01).
Main Technical Specifications
- Part Number: LG1093AC01
- Manufacturer: Honeywell
- Device Type: UV Flame Detector Probe
- Sensor: Geiger-Müller UV phototube
- Detection Spectrum: 180 ~ 260 nm UV, solar blind
- Response Time: Flame detected typical 0.1s; flame loss max 0.2s
- Supply Voltage: 20~35 VDC or 115 VAC (depends on matched amplifier)
- Built-in Cable: 9 ft (2.7 m) armored cable
- Max transmission distance: Up to 330 m from probe to amplifier
- Operating Temperature: -40°C ~ +176°C
- MTBF: Approx 10,000 hours
- Certification: CE, FM for hazardous area combustion monitoring
- Form Factor: Threaded flame probe with armored cable
- Status: Original production discontinued; spare stock available as new surplus or professionally refurbished bench-tested units
LG1093AC01
Same-Series Model Recommendations (8 Models)
- LG1093AC01: UV flame detector probe (subject model)
- EG1033: Matching flame signal amplifier
- LG1093AA01: Alternative LG series UV flame probe
- CC-PCNT01: C300 Experion PKS DCS controller
- CC-TUIO01: Series C universal IOTA base
- CC-PCF901: CF9 FTE control firewall
- FC-QPP-0001: Safety Manager SIS CPU
- 2MLI-CPUU: MasterLogic 200 PLC CPU
Professional Quality Control & Testing Standard Operating Procedures
All surplus and refurbished Honeywell LG1093AC01 probes follow this inspection workflow:
- Visual Inspection: Check probe housing, thread, armored cable, connector, insulation, verify Honeywell part marking.
- Cable Continuity & Insulation Test: Check conductor continuity, no short circuit, insulation resistance meets specification.
- UV Response Bench Test: Use calibrated UV source to verify pulse output when flame signal exists.
- Dark State Test: Confirm no false pulse output under no-flame / blackbody heat source.
- Signal Matching Test: Pair with EG1033 amplifier, verify flame / no-flame relay output.
- Vibration test: Simulate turbine vibration to check intermittent signal dropout.
- Thermal soak test: Operate at high temperature range to verify stability.
- Final Cleaning & Packaging: Check cable jacket, mark test status, ESD packaging with printed test certificate.
New / Refurbished Module Installation Guidelines
- Pre-Installation Safety: Execute lockout-tagout; isolate turbine fuel and flame amplifier power, follow hot work permit.
- Mounting Location Check: Install on turbine/burner sight port; ensure clear line of sight to flame, avoid soot accumulation.
- Mechanical Mounting: Screw the probe into sight fitting, seal correctly; do not over-tighten threads.
- Cable Routing: Route armored cable separately from high-current power cables; protect cable from high heat and mechanical crush.
- Amplifier Wiring: Terminate cable conductors to EG1033 amplifier terminals per drawing.
- Offline Functional Test: Power amplifier offline, use UV test lamp to confirm flame indication and relay action.
- Commissioning & Acceptance: Perform burner light-off test, verify stable flame signal and loss-of-flame trip function, archive loop test records.
Application Scenarios & Product Features
Typical Application Scenarios
- Gas turbine flame monitoring for power generation
- Refinery and chemical plant burner / boiler flame detection
- Combustion safety protection, loss-of-flame trip interlock
- Spare replacement for legacy Honeywell LG series flame detection systems
Core Product Features
- Solar-blind UV Geiger-Müller sensor, rejects sunlight and hot metal blackbody interference
- Fast flame detection and flame-loss response for safety trip logic
- Integrated 2.7m armored cable for high vibration turbine environment
- Long signal transmission distance to remote amplifier cabinet
- Designed for high temperature and vibration combustion zone
- Requires supporting flame amplifier (EG1033); cannot directly connect to DCS I/O
- Not hot-swappable during turbine firing; fuel isolation required before removal
Frequently Asked Questions (FAQ)
Q1: Is LG1093AC01 a DCS rack module for Experion PKS? A1: No. It is a field-mounted UV flame probe, belongs to combustion safety instrument, not Series C rack card.
Q2: Can it work without EG1033 amplifier? A2: No. The probe outputs UV pulse signal; converts pulses into relay or analog flame status for SIS/DCS.
Q3: Can it detect infrared flame? A3: No, it is UV type, only responds to UV band 180–260nm. IR flame detectors are different part numbers.
Q4: What are common failure modes? A4: Phototube aging / sensitivity drop, armored cable inner conductor breakage, cable insulation damage, sight window fouling by soot.
Q5: Is it suitable for all burners? A5: Optimized for hydrocarbon gas turbine / gas burner. Not suitable for flames with weak UV emission.
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