Perfect Genuine New Flame Scanner FIREYE 45UV5-1105 High Precision Application For Industrial Safety Monitoring

FIREYE 45UV5-1105 Flame Scanner – Reliable UV Flame Monitoring for Critical Burners

The FIREYE 45UV5-1105 is an industrial ultraviolet (UV) flame scanner designed to provide continuous, dependable flame detection on gas and light-oil burners. Working together with compatible FIREYE flame safeguard and burner management controls, this scanner ensures that fuel valves only remain open when a genuine flame is present, helping plants maintain safe, efficient and compliant combustion processes.

In high-duty boilers, process heaters, furnaces and incinerators, operators cannot rely on guesswork. The 45UV5-1105 delivers a clear flame signal, fast reaction to flame loss, and robust performance in tough environments, turning a potentially weak point in the system into a consistent, measurable safety function.

1. Specification Snapshot

The following table provides a concise technical summary that can be used in engineering documents, online catalogues and purchasing descriptions.

2. General Description

The 45UV5-1105 belongs to FIREYE’s family of UV flame scanners that are widely used in modern burner management systems. Its role is straightforward but essential:

• Confirm the presence of a stable flame during operation

• Detect loss of flame quickly and reliably

• Signal the control system to shut off fuel when the flame is not proven

Rather than depending on temperature or visible light, the device looks specifically at the ultraviolet radiation emitted by combustion. This makes it particularly effective on gas and light-oil burners, where the flame has strong UV content. By focusing on this spectral band, the scanner helps distinguish real flame from glowing refractory, hot metal surfaces, or ambient light—a key factor in reducing nuisance trips.

The 45UV5-1105 is designed to be compact, durable and serviceable, allowing it to be installed on burner fronts and inspection doors where conditions are hot, dusty and mechanically demanding.

3. How the FIREYE 45UV5-1105 Works

The operating principle can be summarized in a few steps:

1. UV Sensing
   The scanner’s internal sensing element is responsive to UV radiation produced by a combustion flame. When properly aligned, it receives a strong signal as long as the burner flame is established and stable.

2. Signal Generation
   The sensor converts the detected UV radiation into an electrical signal whose characteristics reflect the presence of flame. This signal is transmitted to a compatible FIREYE flame amplifier or burner management controller.

3. Evaluation by the Controller
   The control unit evaluates both the strength and pattern of the incoming signal. If the conditions meet the configured thresholds, the controller interprets this as “flame proven” and continues to permit fuel flow.

4. Loss-of-Flame Response
   If the flame goes out, becomes unstable, or drops below the acceptable level, the UV radiation decreases accordingly. The scanner output falls, and the controller quickly detects the loss of flame. It then initiates a safe shutdown sequence, closing fuel valves and triggering alarms where configured.

This architecture separates sensing (the job of the 45UV5-1105) from logic and sequencing (the job of the flame safeguard), providing a flexible yet robust safety chain.

4. Application Areas

The FIREYE 45UV5-1105 is suitable for a wide spread of combustion systems where continuous flame supervision is either required by code or considered best practice:

• Package and field-erected boilers producing steam or hot water

• Process heaters in refineries and chemical plants

• Fired furnaces and kilns in metals, glass and ceramics industries

• Industrial ovens and dryers used in food, textile and surface finishing processes

• Auxiliary burners and support burners in incinerators and waste-to-energy plants

Within these systems, the scanner can be deployed on main burners, pilot burners, or both, depending on the burner management philosophy and applicable safety standards.

5. Design Features Oriented to Real-World Operation

Engineers who specify flame scanners care less about marketing adjectives and more about practical performance. The 45UV5-1105 addresses that reality with several design characteristics:

• Rugged industrial housing to withstand heat and vibration at the burner front

• Threaded mount interface allowing secure and repeatable positioning

• Straightforward cabling to the control panel, simplifying installation in retrofit and new projects

• Compatibility with FIREYE flame safeguard platforms, reducing integration effort

• Service access that allows technicians to remove and reinstall the scanner without major disassembly of the burner assembly

Used correctly, these features contribute to a flame detection system that is predictable, maintainable and transparent to the operators.

6. Installation and Commissioning Guidelines

To get reliable performance from the FIREYE 45UV5-1105, installation quality matters as much as the device itself. Some practical guidelines include:

• Line of Sight
  The scanner should be installed so that it views the main combustion zone, not just the ignition spark or a weak edge of the flame. A dedicated sight port or scanner tube is typically used.

• Avoiding Excess Refractory View
  While the scanner is UV-sensitive and less fooled by hot surfaces than a visible-light device, extreme exposure to glowing refractory can influence long-term behavior. Proper alignment focuses on the flame core, not furnace walls.

• Temperature Management
  At high burner front temperatures, cooling air or thermal isolation hardware may be required. Keeping the scanner within its rated temperature range significantly extends its service life.

• Electrical Practices
  Cable routing should avoid close proximity to high-voltage ignition leads and heavy power cables. Good grounding and shielding practices improve signal quality and reduce the chance of intermittent faults.

• Commissioning Tests
  During start-up, engineers should:

  • Verify signal strength with flame lit under different load conditions

  • Check that flame failure leads to shutdown within the required time

  • Confirm that the scanner does not “see” a flame when burners are off

These tests not only validate the device but also build confidence in the entire burner management system.

7. Maintenance and Long-Term Reliability

A flame scanner is a safety device and should be treated with the same respect as a safety valve or interlock. For the 45UV5-1105, typical maintenance activities include:

• Regular inspection of the viewing window or lens for soot, dust or oil contamination

• Mechanical checks to ensure mounting hardware remains tight and the alignment has not shifted

• Functional flame-failure tests as part of scheduled shutdowns or according to site procedures

• Verification of diagnostic indicators on the connected FIREYE controller, if available

When these steps are followed, the 45UV5-1105 can provide stable service over extended operating periods, contributing to lower life-cycle cost and improved plant safety.

8. Benefits for Owners, Operators and Integrators

Choosing the FIREYE 45UV5-1105 brings several advantages across different stakeholder groups:

• For plant owners and managers

  • Increased safety margin due to reliable flame detection

  • Reduced risk of equipment damage and unscheduled outages

  • Enhanced ability to meet insurance and regulatory requirements

• For operators

  • Clear flame supervision within the burner management system

  • Fewer nuisance trips when properly applied and aligned

  • Confidence that the system will respond correctly during abnormal events

• For system integrators and OEMs

  • A scanner that works coherently within the FIREYE ecosystem

  • A compact, field-proven component suitable for both new equipment and retrofits

  • Simplified documentation and support thanks to a standardized, widely recognized model

9. Conclusion – Why the FIREYE 45UV5-1105 Matters

In any industrial burner system, the flame scanner is the quiet decision-maker that answers one question: Is there truly a flame, right now? The FIREYE 45UV5-1105 answers that question using proven UV technology, solid mechanical design and tight integration with FIREYE burner management controls.

For sites that view safety not as a slogan but as a design requirement, the 45UV5-1105 offers practical reliability, straightforward installation and long-term serviceability, making it a strong candidate for both new combustion systems and upgrades of existing equipment.