Fireye Flame Scanner Probes: IR & UV Fire Detection Solutions

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Fireye Flame Scanner Probes: Comprehensive Guide to IR and UV Fire Detection

Industrial combustion systems demand accurate, fast, and reliable flame detection to ensure safe operation. Fireye, a global leader in burner management and flame safeguard technology, offers an extensive range of infrared (IR) and ultraviolet (UV) flame scanner probes designed for harsh industrial environments.

This article provides a complete overview of Fireye flame scanner probes, including popular and legacy models such as 85IRF, 85UVF, 45UV, 48PT, 65UV5, and 70D / 72D series, helping engineers and maintenance teams select the correct detector for their application.

Understanding Fireye Flame Detection Technology

Fireye flame scanners operate by detecting specific radiation signatures emitted by a flame:

  • Ultraviolet (UV) scanners detect UV radiation produced by hydrocarbon flames

  • Infrared (IR) scanners monitor flame flicker frequency and infrared radiation

  • Combination and legacy scanners serve specialized or retrofit applications

Each technology offers unique advantages depending on fuel type, burner design, and operating environment.

Fireye Infrared Flame Scanner Probes (IR Series)

Infrared flame scanners are ideal for applications where UV radiation may be blocked, such as heavy oil combustion, coal-fired burners, or furnaces with high background radiation.

Key Fireye IR Models

85IRF Series

  • 85IRF4-1EX

  • 85IRF1-2

  • 85IRF1-1EX

These scanners provide:

  • Stable flame discrimination

  • Explosion-proof options for hazardous areas

  • High resistance to vibration and temperature extremes

Legacy and Specialty IR Probes

  • 851FR4

  • 72D41

  • 70D41

  • 69ND1-1000K4

These models are widely used in retrofit projects, ensuring compatibility with existing Fireye control systems.

Typical IR Applications

  • Oil and coal-fired boilers

  • Cement kilns

  • Steel reheating furnaces

  • High-temperature industrial burners

Fireye Ultraviolet Flame Scanner Probes (UV Series)

UV flame scanners respond quickly and are highly sensitive to hydrocarbon flames, making them suitable for gas-fired systems and fast ignition detection.

High-Performance UV Models

65UV5-1004

  • Excellent flame response speed

  • Suitable for industrial gas burners

  • Compatible with Fireye amplifier modules

45UV Series

  • 45UVFS1 M

  • 45UV5-1007

  • 45UV5-100

These UV scanners are known for:

  • Compact design

  • Long service life

  • Strong immunity to ambient light interference

UV Flame Scanner Applications

  • Natural gas burners

  • Package boilers

  • Thermal oxidizers

  • Process heaters

Fireye Phototube & Solid-State Flame Detectors

Fireye also offers phototube-based and solid-state detectors for legacy systems and specialized applications.

Notable Models

48PT Series

  • 48PT2-1003

  • 48PT2-G003

45RM & 45FS Series

  • 45RM2-1000

  • 45FS1-1000

These detectors are often used where:

  • Existing installations require direct replacements

  • Control cabinets are already configured for phototube inputs

  • Long-term system stability is a priority

Explosion-Proof and Hazardous Area Solutions

Many Fireye flame scanner probes are available in EX / explosion-proof configurations, suitable for hazardous industrial zones.

Common features include:

  • Heavy-duty housings

  • Certified protection against explosive atmospheres

  • Reliable operation in dusty, high-temperature environments

Explosion-proof models are commonly installed in:

  • Petrochemical plants

  • Refineries

  • Power generation facilities

  • Coal handling systems

Advantages of Fireye Flame Scanner Probes

Fireye flame detection products are trusted worldwide due to:

  • High detection accuracy

  • Fast flame response

  • Excellent resistance to electrical noise

  • Long operational lifespan

  • Wide compatibility with Fireye burner management systems

Their modular design allows seamless integration with Fireye amplifiers, programmers, and flame safeguard controllers.

Selecting the Right Fireye Flame Scanner

When choosing a Fireye flame scanner probe, consider:

  1. Fuel type (gas, oil, coal, multi-fuel)

  2. Burner configuration

  3. Ambient temperature and vibration

  4. Presence of background radiation

  5. Hazardous area certification requirements

Correct selection ensures stable flame discrimination and minimizes nuisance shutdowns.

Maintenance and Best Practices

To maintain optimal performance:

  • Clean scanner lenses regularly

  • Inspect mounting alignment

  • Verify signal strength during commissioning

  • Replace aging phototube models proactively

Routine maintenance significantly extends service life and ensures consistent flame detection.

Conclusion

Fireye flame scanner probes—including 85IRF, 85UVF, 45UV, 48PT, and legacy IR/UV models—deliver dependable flame monitoring for critical industrial combustion processes. Whether for new installations or system upgrades, Fireye remains a trusted solution for burner safety, compliance, and operational reliability.