Description

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85UVF1A-1QD is a microprocessor-based ultraviolet (UV) flame detector from Fireye (now part of Honeywell), part of the Phoenix II series. It is used for flame safety monitoring in industrial combustion systems, featuring built-in relays and self-diagnosis. The “QD” stands for **Quick Disconnect** design.

Core parameters
Model: 85UVF1A-1QD
Brand: Fireye (a subsidiary of Honeywell)
Detection principle: Ultraviolet UV (295–340 nm), detecting flame flickering characteristics
Power supply: 24 VDC (±20%), approximately 200 mA Output:
Flame Relay: SPST (Normally Open)
Fault Relay: SPST (Normally Closed)
Analog Output: 4–20 mA (Flame Intensity,光电隔离)
Response Time: Optional (FFRT), Typical < 1 second
Field of View / Detection Distance: 90° Angle, Maximum Distance Approximately 9 Meters
Operating temperature:
Environment: -40°C ~ +65°C
Internal: -40°C ~ +82°C
Protection class: NEMA 4X / IP66
Shell / Weight: Cast aluminum with gray polyester coating; approximately 2.69 kg
Installation: 1″ NPT internal thread, with 3/8″ NPT cooling air interface; equipped with 60-2919-1 flange
Certifications: UL, CE, FM, CSA

Key Features
Integrated Intelligent Design: Built-in solid-state sensors, signal processing and flame relays, no need for external amplifiers, simplifies the system.
Self-Diagnosis and Self-Testing: Automatically stores flame characteristics, adaptive gain, fault reporting, enhances reliability.
Quick Connectors (QD): 8-pin quick-insert interface, efficient installation and maintenance.
Cooling Air Requirements: Clean and dry air, 4 SCFM (113 L/min); up to 15 SCFM for high dust/high temperature environments.
Typical Applications
Industrial boilers, heating furnaces, incinerators, gas turbines
Flame monitoring and safety interlock for gas/fuel/mill fuel burners
Model Distinction
85UVF1A-1QD: Standard UV, quick-insert connector
85UVF1A-2QD: Fiber optic type
85IRF: Infrared (IR) detection version