Product Description for Fireye 65UV5-1004ECEX

Description: The Fireye 65UV5-1004ECEX is a highly specialized and robust ultraviolet (UV) integrated flame scanner. This model is a key component for industrial combustion safety systems, specifically engineered for use in hazardous environments. It utilizes a microprocessor-based design with a UV tube sensor and an electro-mechanical self-checking shutter to ensure reliable flame detection. The “ECEX” designation in the model number signifies its compliance with demanding safety standards for explosive atmospheres, making it suitable for a range of critical applications.

Application Scenarios: In a chemical processing facility, a critical reactor requires a furnace to be operated under a strict burner management system. The furnace is located in a potentially explosive atmosphere, requiring all electronic components to have hazardous area certifications. A standard flame scanner would not meet these safety requirements. The facility installed the Fireye 65UV5-1004ECEX flame scanner, which is housed in a rugged, explosion-proof enclosure with an ATEX and CENELEC certification (Exd IIC T6). This specific certification ensures that the scanner’s internal electronics will not ignite the surrounding atmosphere. This not only fulfilled the stringent safety regulations but also provided a reliable and fast one-second flame failure response time, which is critical in preventing a catastrophic event. The 65UV5-1004ECEX provided the necessary combination of high-performance flame detection and intrinsic safety, becoming a cornerstone of the facility’s safety system.

Parameter:

Main Parameters Value/Description Product Model: 65UV5-1004ECEX Manufacturer: FIREYE Product Category: UV Integrated Flame Scanner Sensor Type: Ultraviolet (UV) tube-type sensor Flame Failure Response Time (FFRT): 1 second, providing a rapid response for safety-critical applications. Output Signals:

• Flame Relay: Internal SPDT (1 N.O., 1 N.C.)
• Fault Relay: Internal SPST (1 N.O.)
• Analog Output: 4-20 mA DC current, providing remote indication of flame signal strength. Hazardous Area Rating: EExd IIC T6 ATEX, CENELEC, and ATEX approved housing. Enclosure Rating: NEMA 4X / IP66, offering protection against dust, water, and corrosion. Input Power: 24 VDC, a common standard for industrial control systems. Mounting: 1″ BSP female pipe mount (mounting flange ordered separately), with a 3/4″ BSP female cooling air connection.

Technical Principles and Innovative Values:

• Innovation Point 1: Certified Hazardous Area Design: The “CEX” in the model number denotes its explosion-proof housing, which is a significant safety innovation. This rugged enclosure is designed to contain any internal explosion that might occur and prevent it from igniting the surrounding hazardous atmosphere. This makes the 65UV5-1004ECEX a crucial component for installations in petrochemical plants, refineries, and other environments where flammable gases or dust may be present.
• Innovation Point 2: Integrated Analog Output for Predictive Maintenance: In addition to the standard flame on/off relay, the 65UV5-1004ECEX features a 4-20 mA analog output. This innovation provides a continuous, real-time measurement of flame intensity. This data can be fed into a control system, allowing operators to trend the flame’s health over time. A slowly decreasing signal might indicate a dirty fuel nozzle or a misaligned burner, allowing for proactive maintenance to prevent a full flame failure and an unplanned shutdown.
• Innovation Point 3: Fast and Reliable Self-Checking Functionality: The scanner incorporates an electro-mechanical shutter that periodically blocks the UV sensor’s view of the flame. This self-checking mechanism allows the internal microprocessor to verify the integrity of the sensor and the signal processing chain. This continuous diagnostic is a cornerstone of a safe burner management system, ensuring that the scanner is always ready to detect a flame failure and that a failure of the scanner itself is immediately identified.

Application Cases and Industry Value:

In a natural gas compressor station, the process heaters are vital for preventing condensation in the gas lines. The heaters are located in an area with a high risk of gas leaks, necessitating explosion-proof equipment. The original flame scanners were old and did not have the required hazardous area certifications. By installing the Fireye 65UV5-1004ECEX, the company not only brought their equipment into full compliance with safety regulations but also gained a more reliable and responsive flame monitoring system. The one-second FFRT and the explosion-proof housing provided a significant improvement in safety, protecting both the workers and the valuable gas infrastructure from potential hazards. This upgrade underscored the value of the 65UV5-1004ECEX as a premium safety component that meets the most demanding industrial requirements.

Related Product Combination Solutions:

The FIREYE 65UV5-1004ECEX is a critical component in a larger safety-oriented system and works best with:

• FIREYE Burner Controls: The flame and fault relay outputs are wired directly to a burner control unit, such as Fireye’s Nexus or E-Series, which manages the burner’s operation and safety interlocks.
• Programmable Logic Controllers (PLCs): For a more integrated control system, the 4-20 mA analog output can be connected to a PLC’s analog input module, allowing for advanced monitoring and data logging.
• Safety Shutoff Valves: The burner control, in response to the 65UV5-1004ECEX‘s signal, will operate safety shutoff valves, immediately stopping the flow of fuel in the event of a flame failure.
• Junction Boxes and Glands: Due to its hazardous area rating, the 65UV5-1004ECEX is wired via an internal terminal rail within its housing. Proper cable glands must be used to maintain the explosion-proof integrity of the enclosure.
• Cooling Air Purge System: For applications with high ambient temperatures or dusty/dirty fuels, a cooling air purge system is essential. The 65UV5-1004ECEX includes a connection for this purpose to ensure the sensor’s longevity and accuracy.

Installation, Maintenance, and Full-Cycle Support:

Installation of the FIREYE 65UV5-1004ECEX must be performed by certified electricians in accordance with local regulations for hazardous locations. The unit’s design allows for wiring via an internal terminal rail. As a solid-state device with a self-checking feature, it requires minimal routine maintenance, primarily focused on ensuring the cleanliness of the viewing lens and the proper function of the cooling air purge.

In the event of a fault, the on-board LED indicators and the fault relay output simplify diagnostics. As a legacy product, the availability of new units may be limited. However, our extensive network provides access to reliable, tested, and often new-old-stock or refurbished units. We offer comprehensive technical support for the entire lifecycle of the 65UV5-1004ECEX, including expert guidance on installation, commissioning, and long-term maintenance, to ensure your critical safety systems remain operational.