85UVF1-1CEX-K3 Fireye UV Flame Scanner | Relay Detection Unit

85UVF1-1CEX-K3 Fireye Integrated UV Flame Scanner System

85UVF1-1CEX-K3 delivers high-speed ultraviolet flame supervision for industrial combustion systems.

The scanner integrates flame detection, relay logic, and analog feedback within one compact field-ready assembly.

Its advanced optical filtering technology improves flame selectivity under demanding combustion conditions.

The rugged IP66 enclosure supports continuous operation in outdoor and contaminated industrial environments.

This scanner platform simplifies burner monitoring architecture by reducing external interface requirements.

Combustion Monitoring Design Profile

• Optical Sensing Layer
  • Spectral response range from 310 to 500 nanometers
  • Advanced optical filtering improves flame discrimination
  • Fast ultraviolet response improves ignition verification
• Integrated Relay Platform
  • Internal flame relay architecture
  • Dedicated fault relay supervision
  • Reduces external control wiring complexity
• Industrial Mechanical Structure
  • Cast aluminum enclosure construction
  • Gray polyester powder-coated surface
  • IP66 and NEMA 4X environmental protection
• Analog Process Feedback
  • Optically isolated 4–20mA output
  • Supports remote combustion trend monitoring
  • Improves burner diagnostic visibility

Global PLC Spare HUB's Insight

Fireye 85UVF1-1CEX-K3 performs effectively in burner systems requiring stable ultraviolet flame supervision.

Its internal relay structure reduces cabinet-level integration complexity during combustion system upgrades.

The isolated analog output supports advanced flame intensity analysis through plant control systems.

Engineers frequently deploy this model in applications with rapid ignition cycles and fluctuating furnace pressures.

The reinforced enclosure design improves operational stability in dusty and high-humidity process environments.

Suitable Equipment and Process Applications

• Industrial boiler burner systems
• Thermal process furnaces
• Petrochemical heater controls
• Gas-fired combustion skids
• Steam generation combustion platforms
• Refinery ignition management systems
• Industrial drying systems
• Waste gas incineration equipment

Performance and Electrical Characteristics

• Manufacturer: Fireye
• Part Number: 85UVF1-1CEX-K3
• Product Category: Integrated Flame Scanner
• Detection Technology: Ultraviolet flame sensing
• Spectral Range: 310–500 nanometers
• Optical Filter: Advanced selective filtering technology
• Housing Material: Cast aluminum
• Surface Finish: Gray polyester powder coat
• Ingress Protection: IP66 / NEMA 4X
• Ambient Temperature: -40°C to +65°C
• Scanner Internal Temperature: -40°C to +82°C
• Storage Humidity: 0% to 95% RH non-condensing
• Input Voltage: 24V DC nominal
• Current Consumption: 200 mA
• Electrical Interface: 8-pin quick-disconnect connector
• Flame Relay Type: SPST Normally Open
• Fault Relay Type: SPST Normally Closed
• Relay Rating: 2A at 30V DC / 230V AC
• Analog Signal: Isolated 4–20mA DC
• Maximum Analog Load: 750Ω
• Cooling Air Requirement: 4 SCFM minimum
• Maximum Purge Air: 15 SCFM in contaminated conditions
• Net Weight: 4.3 kg

Field Installation Recommendations

• Maintain direct flame line-of-sight during scanner positioning
• Use dry purge air to protect optical components
• Prevent excessive thermal exposure near furnace openings
• Inspect connector locking integrity during commissioning
• Separate analog wiring from high-voltage conductors
• Confirm grounding continuity before startup testing
• Verify furnace pressure compensation during purge setup

Diagnostic and Operational Intelligence

• Monitors flame stability continuously
• Improves ignition sequence verification accuracy
• Detects flame signal degradation trends early
• Supports combustion tuning analysis through 4–20mA feedback
• Identifies intermittent burner instability conditions
• Improves root-cause troubleshooting efficiency
• Supports predictive burner maintenance strategies

Industrial Reliability Advantages

• Stable operation during rapid burner cycling
• Reduced false shutdown probability
• Strong environmental protection for outdoor installations
• Lower integration complexity for retrofit projects
• Improved signal isolation against electrical interference
• High durability under elevated process temperatures

Logistics and Warranty Coverage

• Warranty Coverage: 12 Months
• Shipping Services: FedEx, UPS, DHL
• Packaging: Industrial export protection standard
• Delivery Processing: Fast global dispatch support
• Technical Assistance: Configuration verification available

Professional Engineering FAQ

• Why does ultraviolet sensing improve ignition monitoring speed?
  • UV detection reacts rapidly to flame presence during burner startup conditions.
  • This improves flame proving reliability in fast-cycle combustion systems.
• How should engineers manage scanner performance in dirty combustion zones?
  • Increase purge airflow and inspect optical surfaces regularly.
  • Contaminated optics commonly reduce flame signal stability over time.
• What benefits does isolated analog output provide during troubleshooting?
  • Isolation reduces electrical noise influence on flame strength monitoring.
  • This improves signal integrity across long control wiring distances.
• Which application environments benefit most from IP66 protection?
  • Outdoor combustion skids and dusty industrial furnaces benefit significantly.
  • High-moisture areas also require sealed scanner protection structures.
• What should engineers evaluate before selecting ultraviolet flame scanners?
  • Review flame visibility, fuel type, combustion turbulence, and furnace temperature conditions.
  • Scanner placement strategy strongly affects long-term detection reliability.

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