Fireye 85UVF1-1CEX is a high-performance integrated flame detector developed by Fireye, a world-leading manufacturer of industrial combustion control and flame detection solutions. As a core component of industrial fire safety and combustion control systems, Fireye 85UVF1-1CEX adopts advanced ultraviolet (UV) detection technology to accurately identify flame presence, distinguish between real flames and false signals, and provide rapid alarm and interlock signals to protect equipment and personnel safety.
Belonging to Fireye’s 85UVF series of flame detectors, Fireye 85UVF1-1CEX features an integrated design that combines a detector, signal processor, and output module in one compact unit, simplifying installation and integration into existing combustion systems. Its rugged industrial-grade construction and anti-interference design ensure stable operation in harsh industrial environments with high temperature, humidity, and electromagnetic interference. Whether deployed in boilers, furnaces, or industrial burners, Fireye 85UVF1-1CEX delivers reliable flame monitoring, reduces the risk of fire and explosion, and ensures compliance with industrial safety standards, making it an indispensable safety component in modern industrial automation systems.
Technical Specifications
Parameter Name | Parameter Value
Product Model | 85UVF1-1CEX
Manufacturer | Fireye
Product Type | Integrated Flame Detector
Detection Technology | Ultraviolet (UV) Detection
Detection Wavelength | 185-260 nm
Response Time | ≤ 100 ms (Flame On), ≤ 2 seconds (Flame Off)
Operating Temperature Range | -40°C to +85°C
Storage Temperature Range | -40°C to +100°C
Relative Humidity | 0% – 95% (Non-Condensing)
Power Supply | 24 VDC ± 10%
Power Consumption | ≤ 15 W
Output Signals | 2 x Relay Outputs (SPDT), 1 x 4-20 mA Analog Output
Communication Interface | RS485 (Modbus RTU)
Protection Rating | IP66
Mounting Type | Threaded Mount (3/4″ NPT)
Physical Dimensions (L×D) | 150 mm × 58 mm
Weight | Approximately 0.5 kg
Detection Range | Up to 15 Meters (Depending on Flame Intensity)
Main Features and Advantages
High-precision flame detection: Fireye 85UVF1-1CEX uses advanced UV detection technology with a narrow wavelength range (185-260 nm), accurately identifying flame radiation while filtering out sunlight, incandescent light, and other false signal sources, ensuring no false alarms or missed alarms. The fast response time (≤100 ms) enables rapid detection of flame changes, providing timely protection.
Rugged and reliable design: Fireye 85UVF1-1CEX features an IP66 protection rating, effectively preventing dust, water, and corrosive substances from entering the device, making it suitable for harsh industrial environments such as chemical plants and power plants. The high-temperature resistant housing and anti-electromagnetic interference design ensure stable operation under extreme conditions.
Easy integration and operation: Fireye 85UVF1-1CEX adopts an integrated design, reducing the number of components and simplifying installation and wiring. It supports Modbus RTU communication and 4-20 mA analog output, enabling seamless integration with PLC, DCS, and fire alarm systems. The built-in self-diagnostic function continuously monitors device status, facilitating maintenance and troubleshooting.
Application Fields
Power generation industry:Fireye 85UVF1-1CEX is widely used in coal-fired, gas-fired, and biomass boilers in thermal power plants and combined-cycle power plants. It monitors the flame status of burners in real time, ensuring stable combustion and preventing boiler explosions caused by flameout, safeguarding the safe operation of power generation equipment.
Petrochemical and chemical industry: In oil refineries, chemical plants, and natural gas processing facilities, Fireye 85UVF1-1CEX is used to monitor the flame of industrial furnaces, reactors, and burners. Its anti-corrosion and anti-interference design adapts to the harsh environment with flammable and explosive substances, reducing the risk of fire and ensuring production safety.
Industrial manufacturing and heating:Fireye 85UVF1-1CEX is applied in metallurgical furnaces, glass kilns, and industrial heating systems. It monitors the flame status during the production process, ensuring stable heating efficiency and product quality, while providing timely alarm signals in case of flameout, avoiding production accidents and economic losses.
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Installation and Maintenance
Installation preparation: Before installing Fireye 85UVF1-1CEX, confirm the installation position is aligned with the flame source to ensure unobstructed detection. Verify the power supply voltage is within the 24 VDC ± 10% range and use shielded cables for wiring to reduce electromagnetic interference. Check the threaded mount (3/4″ NPT) for tightness and ensure the device is properly grounded to avoid static interference.
Maintenance recommendations: Conduct monthly visual inspections ofFireye 85UVF1-1CEX to check for dust accumulation on the detection window, loose connections, and abnormal indicator lights. Clean the detection window with a soft cloth quarterly to ensure detection accuracy. Use the built-in self-diagnostic function semi-annually to verify device performance, and replace the UV sensor every 2-3 years to maintain reliable operation.
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