85UVF1-1QDK3 Fireye Scanner

Overview

The Fireye 85UVF1-1QDK3 Phoenix is a microprocessor-based, integrated ultraviolet (UV) flame scanner designed for industrial burner management systems. As part of the Phoenix Series 2, it combines a solid-state flame detection sensor with an internal flame relay, eliminating the need for a separate remote flame amplifier. The “K3” designation indicates the inclusion of an advanced optical filter that expands the scanner’s sensitivity, allowing it to detect light wavelengths from 310 nm up to 500 nm. This model features an 8-pin quick-disconnect (QD) electrical connection for simplified installation and maintenance.

Features

• Self-Checking Technology: Incorporates full internal self-diagnostics and electronic self-checking for high-reliability safety monitoring.
• Integrated Flame Relay: Features an internal relay with automatically set ON/OFF thresholds based on detected flame flicker amplitudes.
• Selectable FFRT: Offers selectable Flame Failure Response Time to suit specific application safety requirements.
• Advanced K3 Filtering: Equipped with a specialized optical filter to detect a broader spectrum of light (310 nm to 500 nm).
• Analog Output: Provides a standard optically isolated 4-20mA DC output representing flame signal strength.
• Quick Disconnect: Utilizes an 8-pin electrical quick-disconnect coupling for easy wiring and scanner replacement.
• Status Indication: Multiple onboard LEDs provide visual feedback for flame signal strength, relay status, and fault codes.

Specifications

• Model Number: 85UVF1-1QDK3 (often replaced by 85UVF1A-1QDK3)
• Detection Type: Ultraviolet (UV) with K3 optical filter
• Spectral Range: 310 nm to 500 nm
• Input Power: 24 VDC nominal (+10%, -15%)
• Electrical Connection: 8-pin screw-type quick-disconnect
• Relay Outputs: SPST (N.O.) Flame Relay; SPST (N.C.) Fault Relay
• Analog Output: 4-20mA (maximum load 750 Ohms)
• Housing Material: Cast aluminum with gray polyester powder coat
• Ingress Protection: IP66
• Temperature Rating: -40 degree F to 150 degree F (-40 degree C to 65 degree C) ambient
• Shipping Weight: Approximately 4.3 lbs to 5.9 lbs depending on configuration
• Agency Approvals: FM, UL/c, CE Approved; SIL 3 certified

Applications

The 85UVF1-1QDK3 is specifically engineered for challenging industrial combustion environments where specialized light emissions must be monitored. The K3 filter makes it particularly effective for steel plant applications, such as burners firing blast furnace gas or coke oven gas. Other typical applications include:

• Duct burners and low NOx burners
• Industrial gas burners and refinery process heaters
• Waste gas units and incinerators
• Multi-burner furnaces and utility boilers where high discrimination between target and background flames is required.