Description

Product Overview

The 85UVF1-1CEXK3 is a microprocessor-based ultraviolet flame scanner from Fireye Phoenix Series 2, built with an onboard flame relay, eliminating the requirement for a separate remote flame amplifier. It identifies flame presence by analyzing flame flicker modulation, performs automatic threshold learning, gain selection and continuous self-check diagnostics. The CEX suffix means explosion-proof housing for ATEX / IECEx hazardous zones; K3 denotes the 120 VAC powered variant. Widely deployed on gas, light oil burners for boilers, heaters, furnaces, power plant combustion safety.

Technical Specifications

• Brand: Fireye (Carrier)
• Model: 85UVF1-1CEXK3
• Warranty: One Year
• Condition: 100% New & Original
• Sensor Type: Solid-state UV sensor, spectral response 185–260 nm
• Power: 120 VAC (K3 version)
• Core Outputs: Built-in flame relay (NO/NC); standard 4–20 mA analog output for flame strength
• Response: Fast flame loss detection, auto-learn flame signature during commissioning
• Housing: Explosion-proof, IP66
• Certifications: UL C/US, CE, ATEX / IECEx Ex II 2G Ex db IIC T6; Ex II 2D Ex tb IIIC T85°C, DVGW, DIN CERTCO
• Field of View: 1° narrow view, helps reject adjacent burner cross-fire
• Operating Temp: −40 °C to +74 °C for electronics
• Electrical Termination: Terminal block (CEX version; QD versions use 8-pin quick disconnect)
• Mounting: Burner sight pipe assembly
• Differentiation:
  • 85UVF1‑1CEX‑K3: 120 VAC, Ex db flame scanner
  • 85UVF1‑1CEX: base explosion-proof model
  • 85UVF1‑1QD / 1QDK3: non-explosion proof quick-disconnect version
  • 85IRF1 series: infrared equivalent for other fuels
• Origin: USA
• Lifecycle: Active mainstream burner safety spare