Description
1. Unboxing & Physical Snapshot
- Model & Brand: Honeywell — LG1093AA36 (Ultraviolet UV Flame Sensor / Detector)
- Physical Dimensions: Compact explosion-proof cylindrical housing featuring a 3/4-inch NPT internal mounting thread and an integrated 36-foot (approx. 11-meter) Teflon-shielded cable assembly.
- Estimated Shipping Weight: 3.8 kg (8.4 lbs) packed in heavy-duty anti-static cushioning and a reinforced transport carton.
- What’s in the Box: LG1093AA36 flame detector head, pre-wired Teflon cable harness, high-pressure optical viewing window assembly, and factory safety insert (note: matched EG1033 series amplifier modules are ordered separately).
2. Product Introduction
Flame supervision across heavy-duty gas turbines and industrial burner systems requires rugged sensors capable of isolating true hydrocarbon combustion from background noise. Operating within Honeywell’s proven LG/EG flame monitoring ecosystem, the LG1093AA36 utilizes a solar-blind Geiger-Mueller cold cathode phototube to target the 180 nm to 260 nm UV radiation spectrum emitted by hydrocarbon flames.
Engineered with solar-blind filtering, the unit completely ignores ambient sunlight, infrared radiation, and glowing internal turbine structures. It provides sub-second response times, relaying high-frequency pulses across its integrated cable to remote EG1033 system amplifiers (—which ensures immediate fuel shutoff capability during a flameout event). Plant engineers rely on this configuration for high-integrity safety protection on power generation and compression skids.
3. Core Technical Specifications
| Parameter | Value |
| Product Series | Honeywell Industrial Combustion / Burner Management Controls |
| Sensor Technology | Solar-blind Geiger-Mueller cold cathode UV phototube |
| Spectral Response | 1800 to 2600 Angstroms (180 nm to 260 nm) |
| Response Time | <0.1 seconds (Flame On) / \le0.2 seconds (Flame Loss) |
| Optical Pressure Rating | Up to 10 bar (150 psig) viewing window tolerance |
| Cable Specifications | 36-foot integrated Teflon-shielded cable with 1-inch external conduit thread |
| Amplifier Compatibility | Honeywell EG1033 series modules (Transistor or Relay outputs) |
| Operating Temperature | Up to +176^\circC (+350^\circF) at sensor head |
| Storage Temperature | -40^\circC to +85^\circC (-40^\circF to +185^\circF) |
| Enclosure Rating | Heavy industrial explosion-proof housing |
4. Global Compliance & Industry Certifications
Regulatory life-safety audits require strict hazardous-location approvals for any flame-monitoring hardware mounted directly on pressurized combustion chambers.
- Certifications: CE Mark (EMC and LVD directives), ATEX Directive (EEx d IIA T3, Zone 1 & 2), Factory Mutual (FM) Approved (Class I, Div 1 & 2, Groups B, C, D), and RoHS compliant.
- Safety Relevance: The ATEX and FM explosion-proof ratings ensure that internal electrical arcs or combustion pressures cannot breach the housing and ignite surrounding explosive gas atmospheres in the plant.
- Audit Note: Verify local authority having jurisdiction (AHJ) guidelines and hazardous area classification boundaries prior to final mechanical installation.
5. Long-Term Storage & Asset Preservation Guide
Spare flame sensors stored in warehouse stockrooms require protection against extreme temperatures and optical lens contamination to preserve component reliability. Protect your capital spares by executing these procedures:
- Maintain indoor warehouse climates where ambient storage temperatures stay between -20^\circC and +55^\circC while keeping relative humidity strictly below 60% non-condensing.
- Keep the sensor sealed inside its original factory protective packaging with the optical lens cap securely installed until the exact boiler or turbine maintenance outage.
- Inspect the optical glass window and pre-wired cable harness annually for dust accumulation or jacket wear, cleaning viewing surfaces gently with lens tissue and optical-grade isopropyl alcohol if necessary.
6. Physical Installation Prerequisites
Proper alignment with the burner combustion zone and secure conduit sealing guarantee accurate, uninterrupted flame tracking.
- Clearance Space: Ensure unobstructed optical line-of-sight directly into the primary combustion zone through the 3/4-inch NPT mounting sight pipe.
- Thermal Isolation: Utilize appropriate thermal isolation spacers or purge air connections if local radiant temperatures exceed maximum sensor housing limits.
- Wiring Protection: Route the integrated 36-foot Teflon-shielded cable through liquid-tight metal conduit away from high-voltage igniter leads to prevent induced electrical noise on signal lines.
7. Buyer’s FAQ (Logistics & Compliance Focus)
Q: What Harmonized System (HS) Tariff Code applies to this Honeywell flame sensor for international shipments?
A: Industrial gas analysis, detection instruments, and burner management sensors typically classify under HS code 9027.10.0090 (Gas or smoke analysis apparatus and parts). Always verify final classifications with your customs broker.
Q: What is the specific cable length provided with the LG1093AA36 part number?
A: The “-AA36” variant includes an integrated 36-foot (approx. 11-meter) pre-wired Teflon-shielded cable harness.
Q: What is the Country of Origin (COO) for trade compliance record-keeping?
A: This safety-critical sensor is manufactured in the United States, requiring accurate country declarations on commercial import paperwork.
Q: Is specialized transit insurance required for international cargo delivery?
A: Yes, because precision optical viewing windows and internal vacuum phototube components are vulnerable to severe drop shocks, full-value freight insurance is strongly recommended.
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