FIREYE 85UVF1-1QDK3 Integrated Ultraviolet Flame Scanner

FIREYE 85UVF1-1QDK3 Integrated Ultraviolet Flame Scanner

I. Model Explanation (Disassembly Suffix)
85UVF: Phoenix II series integrated UV flame detector, with built-in amplifier + relay, no need for external amplifier
1: Basic standard UV photosensitive module
1QD: 8-pin circular quick-disconnect electrical connector (QD = Quick Disconnect), matching cable model 59-546-XX
K3: Standard 0.9m (3 feet) armored optical fiber probe, with an extended ultraviolet spectral filter, expanding the detection range to 500nm, suitable for high-temperature furnaces, narrow burners
Core Detection Principle
Solid-state UV sensor, capturing 215~350nm ultraviolet flicker modulation signals; microprocessor automatically learns flame amplitude, adapts gain, automatically calibrates fire/no-fire threshold, shields natural light, furnace heat radiation interference, supports whole machine self-check and diagnosis Fireye.

Electrical Specifications
Power supply: 24VDC, total machine power consumption ≤ 70mA
Output channels
2 independent SPDT relays: flame presence relay, fault alarm relay; contact capacity 5A@250VAC / 30VDC
Standard 4–20mA analog output: linearly corresponds to flame intensity (4mA = no flame, 20mA = full-scale flame)
RS485 Modbus RTU communication: 9600~115200 baud, can remotely read status, flame intensity, fault codes
Ignition response FFRT: can be set to 1/2/3/4/6s, factory default 3s
Connection: 8-pin MIL standard circular quick-connect connector, no on-site welding required

Environmental and Mechanical Parameters
Electronic body temperature: -40℃ ~ +65℃; optical fiber probe can withstand furnace temperature
Protection level: IP65 / NEMA4, cast aluminum housing powder coating
Explosion-proof certification: Class I Div.2, ATEX, UL/CE, SIL3 safety level
Installation thread: standard 1/2″ NPT; matching flange 35-318-1 / 60-2692
Weight: approximately 2.69kg
Optical fiber characteristics: 0.9m stainless steel armored quartz optical fiber, factory pre-terminated, controllable minimum bending radius, suitable for compact burner boxes

Key Functional Characteristics
Integrated integration: built-in flame relay, eliminating independent flame amplifier, simplifying combustion control cabinet configuration
Automatic calibration: automatically stores flame characteristics during ignition operation, no need for manual adjustment of sensitivity knob
Full self-diagnosis: sensor break, optical fiber damage, power abnormality, hardware failure can trigger fault relay + Modbus alarm
K3 optical fiber advantage: split optical fiber probe, electronic body away from high-temperature furnace, reducing high-temperature aging failure rate; suitable for high-temperature installation scenarios of gas, fuel burners
Anti-interference: distinguish real flame flicker from furnace reflection, incandescent lamp, electric welding interference, low false alarm rate

Typical Application Scenarios
Industrial boilers, gas / fuel burners, hot air furnaces, tubular heating furnaces
Petroleum, power plants, metallurgy, textile heat treatment furnaces, pipe burners
Working conditions where furnace space is narrow, burner area temperature is too high, and it is impossible to directly install the probe body

Complementary Spare Parts
Connection cables: 59-546 series 8-pin QD cables
Installation flanges: 35-318-1, 60-2692, 60-2919
Replacement optical fiber components: original K3 specification 0.9m armored optical fiber bundle
Complementary combustion controllers: Fireye EP300, EP260 etc. controllers

Reference for Series Differentiation
85UVF1-1QD: without optical fiber, standard direct lens version 85UVF1-1QDK3: Comes with a 3-foot armored fiber optic split probe (this model)
85IRF series: Infrared detection, suitable for non-ultraviolet heavy oil / coal dust flames