Product Details
Configured for ultraviolet radiation detection and fast response signal generation in gas turbine flame monitoring systems, the Honeywell LG1093AA44 (LG1093 Flame Sensor) provides direct physical/electrical execution.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | LG1093AA44 |
| Brand | Honeywell |
| Origin | USA |
| Weight | 3.0 kg (Shipping Weight) |
| Dimensions | 3/4 inch internal NPT mounting / 1 inch external conduit thread |
| Operating Temp | -40 deg C to +176 deg C |
| Power Consumption | Sensor head contains no active power supply (Passive GM tube) |
| Spectral Range | 180 nm to 260 nm (Ultraviolet spectrum) |
| Pressure Rating | Viewing window rated for 10 bar (150 psi) |
| Cable Assembly | Integral Teflon-shielded cable, 16 ft (4.9 m) length |
| Flame Response Time | Flame Present: 0.1 sec typical; Flame Loss: 0.2 sec max |
| Signal Output | Compatible with EG1033 series amplifier modules |
| Transmission Distance | Up to 330 m (1,000 ft) sensor-to-amplifier distance |
| Hazardous Approvals | ATEX (EEx d IIA T3 / EEx d IIC T3, Zone 1 & 2), FM (Class I, Div 1 & 2, Groups B, C, D) |
4-20 mA HART Loop Protocol and Channel-to-Channel Isolation
The optical sensor assembly utilizes a solar-blind Geiger Mueller phototube engineered to isolate ultraviolet radiation signals in the 180 nm to 260 nm spectral band while ignoring infrared and black-body radiation background noise. Electrical channel-to-channel isolation between the optical sensing head and the associated EG1033 amplifier module prevents ground loop currents across the 330 m transmission line. This isolation structure preserves pulse frequency fidelity during high-speed signal processing and emergency trip execution within turbine control architectures.
Frequently Asked Questions
Q: What amplifier modules are compatible with the LG1093AA44 flame sensor?
A: The sensor operates specifically with Honeywell EG1033 series amplifier modules (including EG1033AA transistor open-collector outputs, and EG1033AB or EG1033AC SPDT relay contact outputs).
Q: Can the LG1093AA44 be installed on Dry Low NOx (DLE) gas turbines?
A: No, standard LG1093 series sensors are not optimized for low-emissions combustors; DLE gas turbine applications require pre-selected sensor variants tailored for low UV intensity flames.
Q: What is the maximum pressure limit for the optical viewing window?
A: The integrated optical viewing window is rated to withstand turbine sight-pipe combustion pressures up to 10 bar (150 psi).
Field Installation Guidelines
- Thread the sensor body onto the 3/4 inch NPT sight pipe connection, ensuring a minimum of 5 full NPT thread engagements with high-temperature pipe sealant.
- Pass the integral 16 ft Teflon-shielded cable through a 1 inch protective metal conduit to safeguard against physical abrasion and radiant heat.
- Ground the cable shield drain wire strictly at the EG1033 amplifier terminal strip to eliminate circulating chassis ground loops.
- Inspect and clean the sight glass window periodically using a non-abrasive solvent wipe to prevent soot buildup from attenuating UV light transmission.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
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