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LG1093AA04 | Honeywell | Ultraviolet Flame SensorLG1093AA04 | Honeywell | Ultraviolet Flame SensorLG1093AA04 | Honeywell | Ultraviolet Flame Sensor
LG1093AA04 | Honeywell | Ultraviolet Flame Sensor
LG1093AA04 | Honeywell | Ultraviolet Flame Sensor
LG1093AA04 | Honeywell | Ultraviolet Flame Sensor

LG1093AA04 | Honeywell | Ultraviolet Flame Sensor


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PRODUCT SKU : LG1093AA04

PRODUCT TYPE : Proximity Sensors

PRODUCT VENDOR : Honeywell


  • 100% Genuine Parts – Risk-Free 30-Day Returns
  • 1-Year Warranty & Expert Support for Every Order

Product Details

Configured for combustion monitoring in burner management systems, the Honeywell LG1093AA04 (LG1093AA04 Ultraviolet Flame Sensor) provides direct physical execution of flame detection via UV spectroscopy. The sensor serves as the primary detection element utilized to execute rapid flame monitoring across industrial furnace and boiler platforms.

Hardware Specifications

Parameter Specification
Model LG1093AA04
Brand Honeywell
Operating Temp -40 to 85 deg C
Power Consumption 10 mA at 24 VDC
Detection Range 0 to 762 mm
Response Time < 10 ms
IP Rating IP65

TSI Mechanical Monitoring and Signal Validation

The LG1093AA04 employs UV spectroscopy to isolate the specific spectral signatures emitted during combustion, facilitating high-speed flame discrimination. By maintaining a high sensitivity of 0.5 uA/mW, the sensor effectively filters out ambient light interference to ensure distinct flame state reporting. The internal circuitry utilizes cross-talk suppression to maintain signal integrity when multiple sensors are mounted in close proximity within a multi-burner array. The output stage provides a binary open/grounded signal, which must be validated against the controller's logic thresholds to confirm valid flame presence within the combustion chamber.

Frequently Asked Questions

Q: Can the LG1093AA04 be used in high-vibration environments?

A: Yes, the sensor is constructed for industrial service. However, ensure that the M12 connector is properly secured and that shielded cabling is used to prevent induced noise in the signal line, which could be misinterpreted as flame flicker or loss.

Q: Is the sensor output signal compatible with standard PLC digital input cards?

A: The sensor provides an open/grounded output. Verify that the input module is configured to match the voltage level and logic state (sink/source) of the sensor output to ensure correct detection of the flame/no-flame status.

Field Installation Guidelines

  1. Ensure the mounting position provides a direct line-of-sight to the flame root, within the 762 mm maximum detection range.
  2. Install the sensor using the provided M12 connector, ensuring the cable is routed away from high-voltage ignition sources to avoid EMI interference.
  3. Verify the IP65 seal by tightening the connector and inspecting the enclosure for debris or damage that could compromise environmental protection.
  4. Perform an initial flame-on/flame-off test to verify that the controller correctly maps the sensor's open/grounded signal transitions to the burner management logic.
  5. Periodically inspect the optical lens for soot accumulation, as surface fouling will reduce spectral sensitivity and may lead to false-negative flame loss indications.

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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