Fireye 85UVF1-1CEX Integrated UV Flame Detector

Fireye 85UVF1-1CEX Integrated UV Flame Scanner (Flame Detector) Detailed Explanation
I. Basic Information
Brand: Fireye (now under Carrier, a long-established manufacturer in the field of combustion safety)
Series: Phoenix 85UVF Series Integrated Ultraviolet Flame Probe (with built-in flame relay)
Model Disassembly
85UVF = Integrated Ultraviolet Flame Detection Probe
1 = Flame Extinguishing Response Time (FFRT) = 1 second (Outputs an extinguished flame signal to the BMS combustion management system within 1 second after flame extinction)
CEX = Version with ATEX explosion-proof certification and explosion-proof housing for hazardous areas, IP66/NEMA4X protection
Function: No need for an external independent flame amplifier. The probe itself directly determines the presence of a flame and outputs a switch quantity + analog quantity. It is a core safety component of boiler / heating furnace BMS

Core Technical Parameters
1. Optical Detection
Detection Band: 310~500nm Ultraviolet UV Spectrum, specifically capturing the ultraviolet light of gas / light oil flames
Strong Anti-interference: Not affected by high-temperature refractory materials in the furnace, infrared heat radiation from the environment, or sunlight triggering errors
Supported Fuels: Natural gas, methane, propane, coke oven gas, diesel, kerosene, light fuel oil, suitable for low NOx burners, waste gas incinerators
2. Electrical Specifications
Power Supply: 24VDC, working current approximately 200mA
Built-in Relay: SPST Normally Open Contact, contact capacity 2A@30VDC / 2A@230VAC, closed when flame exists, open when flame extinguished
Analog Output: 4-20mA corresponding to flame signal intensity, can be connected to DCS/PLC for real-time monitoring of flame strength and predicting probe dirtiness and aging
Self-check Function: Built-in UV circuit self-diagnosis, optical / circuit faults will output fault alarm signals
Connection: 8-pin quick-insert aviation connector, can be paired with dedicated extension cables
3. Environment and Explosion-proof
Protection Grade: IP66 (NEMA 4X), dustproof and waterproof, suitable for outdoor / furnace wall harsh working conditions
Explosion-proof Certification: ATEX Certification, applicable to Class I Div.2 A/B/C/D/E/F/G explosive gas hazardous areas
Environmental Temperature: Shell environment -40℃~+65℃; Maximum internal temperature of the probe 82℃
Blowing Requirements: Must connect a clean and dry instrument air to blow the lens, regular 4SCFM (113L/min), in dusty working conditions, increase the blowing air volume to prevent furnace gas and oil contamination of the optical window

 Functional Highlights
Integrated Design: Built-in signal processing + relay, eliminating the need for an external flame amplifier, simple wiring, lower failure rate
Flame Extinguishing Response 1 second: Quickly cut off the fuel valve to avoid furnace gas explosion and explosion in the furnace, meeting combustion safety standards
Flame Intensity 4-20mA Transmitter: Maintenance personnel can remotely view the strength of the flame signal, and predict lens dirtiness and probe attenuation in advance
Local Buttons + LED Status Display: Local viewing of flame status, signal value, and fault codes, convenient for on-site debugging
Fault Self-Diagnosis: UV tube failure, circuit anomaly, wiring fault automatically report faults,联动 BMS alarm

 Typical Application Scenarios
Industrial steam boilers， heat transfer oil furnaces， tubular heating furnaces
Refinery process heating furnaces， flares， waste gas incinerators
Gas generator burner， low NOx burners flame monitoring
Coupled with BMS / Boiler Safety Interlock System to achieve flame extinguishing interlock to cut off fuel