FIREYE 45UV5-1101CEX: Unwavering Flame Supervision in Hazardous Environments
The FIREYE 45UV5-1101CEX is a robust, self-checking ultraviolet (UV) flame scanner specifically designed for safe and reliable flame detection in hazardous and explosive industrial environments. This critical safety device meticulously monitors UV emissions from fossil fuel flames, providing essential flame presence or absence information to burner management systems in single or multi-burner applications.
Application Scenarios:
Consider an offshore oil and gas platform, a demanding environment where safety is paramount due to the constant presence of highly flammable substances. The combustion chambers of the platform’s large industrial boilers and process heaters require absolute certainty of flame presence to prevent the catastrophic accumulation of uncombusted fuel. In such a high-risk setting, standard flame scanners are insufficient; an explosion-proof solution with continuous self-diagnostic capabilities is a non-negotiable requirement.
The FIREYE 45UV5-1101CEX is precisely engineered for these challenging conditions. Encased in a Cenelec EExd IIC explosion-proof housing, the 45UV5-1101CEX can be safely installed directly within Zone 1 and Zone 2 hazardous areas. Its integrated self-checking mechanism, including a periodic internal shutter test, continuously verifies the integrity of the UV detection system. This means that even in the most volatile environments, the 45UV5-1101CEX actively monitors its own health, immediately signaling any internal fault to the connected Fireye control system. This unparalleled level of self-supervision ensures that any potential flame failure or scanner malfunction is detected instantly, allowing for rapid and safe shutdown procedures, mitigating the risk of explosions, and protecting both personnel and valuable assets on the platform. The 45UV5-1101CEX provides the ultimate layer of safety and reliability where it matters most.
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Technical Principles and Innovative Values:
The FIREYE 45UV5-1101CEX leverages advanced flame detection principles and integrates crucial innovations for hazardous environments.
- Explosion-Proof Certification (CEX): The “CEX” designation signifies Cenelec EExd II C T6 IP66 certification. This explosion-proof housing is the primary differentiator, allowing the 45UV5-1101CEX to operate safely in environments where flammable gases or dusts are present, preventing internal sparks from igniting external hazardous atmospheres.
- UV-Eye Detector Technology: At its core, the 45UV5-1101CEX utilizes a sealed, gas-filled UV-sensitive tube. This detector specifically responds to the high-energy UV radiation emitted by flames, generating electrical pulses. The frequency of these pulses indicates flame intensity, providing reliable flame presence verification while remaining insensitive to spurious signals from infrared or visible light sources.
- Integrated Self-Checking Shutter: A critical safety feature, the electromagnetic shutter within the 45UV5-1101CEX periodically interrupts the UV detector’s view of the flame. During this brief interruption, the associated Fireye control verifies that the UV tube and signal circuitry are functioning correctly. This continuous self-diagnostic capability dramatically enhances safety by immediately detecting any internal failure of the scanner, preventing a dangerous undetected “flame on” condition.
- Rugged Construction and Quartz Lens: The durable cast aluminum housing, sealed with high-temperature oil-resistant gaskets, provides superior protection against harsh industrial elements. A planoconvex quartz lens design optimizes UV light collection, increasing sensitivity and allowing for effective flame detection even at greater distances from the burner. This robust build contributes to the scanner’s longevity and reliability in demanding applications.
Application Cases and Industry Value:
A major chemical refinery was seeking to upgrade its critical process heaters, operating in a classified hazardous area, to meet stringent new safety regulations. Their existing flame detection system was aging, prone to false alarms, and lacked the necessary explosion-proof ratings for the updated safety standards. The potential for a flashback or explosion due to undetected flame loss was a constant concern, impacting production schedules and posing significant risks.
The refinery opted for the FIREYE 45UV5-1101CEX flame scanners. Multiple 45UV5-1101CEX units were strategically installed on each burner, directly within the hazardous classified zones. The robust EExd II C T6 IP66 housing provided the necessary protection against the volatile atmosphere. The integrated self-checking feature continuously monitored the health of each scanner, providing real-time diagnostic feedback to the central Fireye burner management system. This upgrade drastically reduced false trips, leading to improved uptime and production efficiency. More importantly, the 45UV5-1101CEX provided an unparalleled level of safety assurance, eliminating the previous concerns about undetected flame failures. Operators now have complete confidence in the flame supervision system, significantly enhancing overall plant safety and regulatory compliance while contributing to a marked reduction in operational risks and associated costs.
Related Product Combination Solutions:
The FIREYE 45UV5-1101CEX is part of a comprehensive ecosystem of Fireye products designed for advanced flame safeguard solutions:
- FIREYE BurnerLogix YB110UVSC / YB230UVSC Series: These advanced burner management systems are engineered to directly interface with the 45UV5-1101CEX, providing complete flame safeguard sequencing, ignition control, and continuous monitoring in hazardous locations.
- FIREYE Flame-Monitor Series (e.g., E110, E300, compatible versions): These modular flame safeguard controls process the flame signal from the 45UV5-1101CEX, managing the burner’s safe startup, operation, and shutdown based on flame presence.
- FIREYE 4-314-1 UV Tube Assembly: As a replaceable component for the 45UV5-1101CEX, this UV tube ensures easy field maintenance and extends the operational life of the scanner.
- FIREYE 61-2914 Shutter Mechanism: This is the specific replaceable electromagnetic shutter component within the 45UV5-1101CEX, vital for its critical self-checking functionality and continued reliable performance.
- FIREYE 38-54 Flame Signal Meter: This portable diagnostic tool is essential for optimal sighting and troubleshooting of the 45UV5-1101CEX during commissioning and routine checks, allowing technicians to verify flame signal strength.
- FIREYE InSight Series Flame Scanners (e.g., 95UVS4, 95IRS4): While the 45UV5-1101CEX is a self-checking UV scanner, for applications requiring advanced discrimination or IR sensing in hazardous areas, other specialized InSight series scanners can complement or offer alternative solutions.
Installation, Maintenance, and Full-Cycle Support:
Installation of the FIREYE 45UV5-1101CEX requires careful adherence to local and international electrical codes for hazardous locations. The 1″ BSP threaded connection facilitates secure mounting, typically into a sight pipe or specialized mounting flange that is also rated for the hazardous area. Proper sighting is paramount, aiming the scanner’s field of view to the most reliable part of the flame (often the flame base and igniter flame), considering factors like burner secondary air and potential obstructions. The scanner necessitates a continuous purge air flow (4 SCFM at 3/8″ NPT inlet) to keep its quartz lens clean, crucial for consistent performance, especially in environments with dirty fuels or high temperatures. All wiring must comply with hazardous area requirements, typically involving explosion-proof conduit and certified cable glands.
Routine maintenance for the 45UV5-1101CEX is streamlined by its self-checking capabilities, which continuously monitor the integrity of the UV tube and associated circuitry. Periodic visual inspections of the lens for cleanliness and verification of purge air flow are recommended. Should a fault occur, the connected Fireye control system will provide specific diagnostic codes, enabling technicians to efficiently troubleshoot and replace components such as the UV tube assembly or the shutter mechanism, minimizing downtime in critical operations.
FIREYE is committed to providing comprehensive full-cycle support for the 45UV5-1101CEX. This includes detailed technical manuals, application notes, and dedicated global technical support. Their experienced team assists with product selection, compliant installation guidance for hazardous areas, commissioning, and ongoing troubleshooting. This commitment ensures the long-term reliability and peak performance of the 45UV5-1101CEX, reinforcing safety and efficiency in your most critical processes.
