Fireye 85UVF1A-1QDK3

Fireye 85UVF1A-1QDK3 | SIL3 Certified Burner Safety Scanner with Quick Disconnect Others

$4,560.00

Fireye 85UVF1A-1QDK3 is a Phoenix II series integrated UV flame scanner developed under GE Vernova Fireye brand, built for gas, light fuel oil and dual-fuel industrial burners. Its customized K3 wide-spectrum optical filter captures extended UV wavelengths from low-radiation pilot and main flames, delivering stable readings even under heavy furnace soot interference.
Brand model：Fireye 
Product Name:85UVF1A-1QDK3
Warranty: 1 year
Origin:USA
HS code：85389000.00
Inventory: Spot/Futures
Goods condition: Brand new
Delivery time: 3-4days/1month

Get a Quote
Category: Brand:

Description

  1. Fireye 85UVF1A-1QDK3 | SIL3 Certified Burner Safety Scanner with Quick Disconnect

Product Core Brief

  • Model: Fireye 85UVF1A-1QDK3 (often mislabeled as GE branded)
  • Brand: Fireye (subsidiary of GE Vernova)
  • Series: Phoenix II Integrated UV Flame Scanner Series
  • Core Function: Continuous UV flame detection & self-diagnosis for industrial gas/oil burners
  • Condition: New Original Surplus, Non-refurbished, factory optical calibrated
  • Type: UV Flame Detector / Burner Safety Scanner Module
  • Key Specs: 310–500nm optical filter | Quick-Disconnect (QD) plug | SIL3 safety rated

Key Technical Specifications

Parameter Value
Full Part Number 85UVF1A-1QDK3
Detection Spectrum 310 nm – 500 nm wide UV band (K3 optical filter variant)
Power Supply 24 V DC (12–30 V DC wide input range)
Electrical Interface 8-pin Quick-Disconnect (QD) plug-in terminal
Flame Signal Output 4–20 mA analog signal proportional to flame intensity
Safety Certification SIL 3 capable, FM approved, Ex II 2G/D hazardous area compliant
Internal Relay Output Flame present / Fault alarm Form A relay contacts
Self-Check Function Automatic continuous optical circuit health verification
Response Time ≤ 100 ms flame detection; <2s loss-of-flame trip
Operating Temperature -40 °C to +75 °C
Purge Air Connection 3/8 NPT thread for cooling/purge air supply
Sight Pipe Mount 1-1/2 NPT standard burner flange interface
MTBF Rating > 65,000 operating hours under rated thermal load
Enclosure Protection IP54 with standard flange gasket; dust & splash resistant
Compatible Cable Fireye 59-546-X series QD extension cables

Product Introduction

Fireye 85UVF1A-1QDK3 is a Phoenix II series integrated UV flame scanner developed under GE Vernova Fireye brand, built for gas, light fuel oil and dual-fuel industrial burners. Its customized K3 wide-spectrum optical filter captures extended UV wavelengths from low-radiation pilot and main flames, delivering stable readings even under heavy furnace soot interference.
This unit eliminates the need for separate scanner head and amplifier by integrating signal processing, fault relay and analog 4–20mA output into one compact housing. The QD quick-disconnect plug design cuts wiring replacement downtime drastically compared to hardwired legacy probes. Continuous built-in self-test prevents unsafe burner operation caused by lens fouling or internal circuit failure, fully meeting industrial boiler and furnace safety standards.

Fireye 85UVF1A-1QDK3

Fireye 85UVF1A-1QDK3

Application Scenarios & Pain Points

A chemical plant’s natural gas boiler suffered unplanned shutdowns every 2–3 weeks due to false flame loss trips. The old narrow-band UV scanner failed to detect weak pilot flames when furnace smoke obscured the sight glass, triggering safety lockout and halting steam supply to reaction vessels. The 85UVF1A-1QDK3’s K3 wide-spectrum filter resolves low-signal detection failures in contaminated combustion environments.

Typical Application Scenarios

  1. Petrochemical Process Boilers – Natural gas / light oil burner supervision

    Stable flame monitoring under high soot and flue gas interference; mandatory SIL3 safety compliance for hazardous process zones.

  2. Power Plant Auxiliary Furnaces – Boiler & HRSG burner control

    Rapid loss-of-flame trip protection to avoid unburnt gas accumulation and explosion hazards.

  3. Food & Beverage Thermal Processing – Oven and steam boiler burners

    Resists moisture and cooking vapor buildup on scanner lens without false alarms.

  4. Refinery Heater Units – Dual-fuel (gas/oil) process heaters

    Wide UV spectrum works seamlessly switching between gas and liquid fuel combustion modes.

  5. District Heating Central Boiler Houses – Multi-burner hot water systems

    Quick-disconnect QD interface allows fast probe swap without full panel rewiring during maintenance.

Real Field Case

A northern chemical facility ran three 20-ton gas-fired steam boilers fitted with older 85UVF1-1QD narrow-band flame scanners. Each cold winter, condensed moisture and furnace soot coated scanner lenses, leading to repeated false flame loss lockouts. Each shutdown cost 4 hours of production downtime plus manual boiler purging and re-lighting labor.
The facility upgraded all scanner probes to Fireye 85UVF1A-1QDK3 units with K3 wide-spectrum filters in Q3 2025. The extended 310–500nm detection band maintained valid flame signals with moderate lens fouling, and the QD plug design reduced each probe replacement time from 90 minutes to 15 minutes. Post-upgrade, unplanned burner lockout events dropped over 95%, and the plant now stocks two spare 85UVF1A-1QDK3 scanners for emergency on-site replacement.

Compatibility & Replacement Matrix

  1. Fireye 85UVF1A-1QDK3 → Fireye 85UVF1-1QD : Partial compatibility (QD plug matches; original narrow filter prone to false trips in smoky furnaces; no wiring changes required)
  2. Fireye 85UVF1A-1QDK3 → Fireye 85UVF1A-1CEXK3 : Direct function replacement (CEX model adds full explosion-proof housing; sight flange and electrical pinout identical)
  3. Fireye 85UVF1A-1QDK3 → Fireye 85IRF1-1QD : Not compatible (IR spectrum only for hot oil flames; UV detection circuit missing, relay mapping mismatch)
  4. Fireye 85UVF1A-1QDK3 → Fireye 85UVF2-1QDK3 : Need sight flange swap (larger body dimension; QD cable pin layout unchanged, mounting flange kit must be replaced)

SOP Quality Transparency Inspection Process

  1. Inbound Receiving Inspection

    Trace original Fireye factory packing slip and customs clearance records; scan serial number against GE Vernova Fireye official database for genuine OEM validation. Full exterior housing inspection for cracks, lens scratches or gasket damage; cross-check full accessories: QD cable adapter, mounting flange gasket, purge air fitting, factory calibration and SIL safety certificate.

  2. Live Bench Functional Test

    Test bench equipped with Fireye standard flame simulation light source and Fluke 115 digital multimeter. Full 24VDC power-on self-test to verify power, flame and fault LED indicators; complete 4–20mA analog output calibration across full flame signal range; simulate lens fouling signal attenuation to validate self-check fault trigger logic; continuous 26-hour thermal aging run to record housing temperature stability. Signed digital test report, live flame detection test footage and inspection photos can be provided to customers upon request.

  3. Electrical Safety Parameter Test

    500 V megohmmeter insulation resistance test with pass threshold >10 MΩ; ground continuity check between metal housing and internal circuit; dielectric withstand voltage test for all QD connector pins.

  4. Firmware & Configuration Backup

    Read and record factory calibrated internal logic firmware version; photograph QD pin assignment and relay jumper positions; back up default flame sensitivity threshold settings for post-replacement commissioning reference.

  5. Final QC & Protective Packaging

    Second dedicated inspector full sign-off confirmation; sealed in anti-static shielding bag; wrapped with shock-absorbing bubble film then packed into reinforced export carton; attach printed QC Pass inspection label with unique serial number and full test date.

Technical Pitfall Avoidance Guide

1. Optical Filter Mismatch Risk

Problem: Installing standard narrow-band 85UVF1-1QD probes in high-soot furnaces leads to frequent false flame loss lockouts.

Avoidance Steps: Confirm furnace fuel type and flue gas contamination level before ordering; specify K3 wide-spectrum variant (85UVF1A-1QDK3) for oil/gas dual-fuel or high-smoke combustion environments; never mix standard UV and K3 filter probes across identical boiler lines without updating burner logic settings.

Field Case: A refinery maintenance team replaced failed K3 probes with basic 85UVF1-1QD units without cross-checking filter specs. Within three days, six unplanned heater shutdowns occurred due to weak flame signal attenuation from furnace soot. Full probe swap back to QDK3 resolved all trip issues.

2. QD Quick-Disconnect Wiring Misalignment

Problem: Bent connector pins or incomplete plug seating causes intermittent 4–20mA signal dropouts and random fault relay triggering.

Avoidance Steps: Inspect all 8 pins on QD cable and scanner before mating; push plug fully until audible click locks connection; secure cable strain relief to eliminate pin bending from vibration.

Warning Note: Loose QD contacts cannot be diagnosed remotely; full disassembly and pin inspection is required to restore stable flame monitoring.

3. Improper ESD Handling During Lens/Connector Service

Problem: Static discharge in dry low-humidity boiler rooms damages internal UV photodiode sensor without visible exterior damage.

Avoidance Steps: Wear certified anti-static wrist strap when disconnecting QD plugs or cleaning scanner lenses; place unit on anti-static mat before opening mounting flange; avoid direct finger contact with internal circuit board terminals.

Field Lesson: A subcontractor replaced a QDK3 scanner in winter without ESD protection; the unit produced erratic 4–20mA readings after energization, requiring emergency rush shipment of a replacement probe.

4. Purge Air Supply Underrating

Problem: Insufficient cooling/purge air flow allows high furnace radiant heat to overheat internal optical circuits, triggering permanent sensor drift.

Avoidance Steps: Maintain minimum 0.02 m³/min dry clean instrument air supply to the 3/8 NPT purge port; install inline air filter to remove oil and moisture; verify air temperature stays below 40 °C entering the scanner housing.

Reference Data: Single 85UVF1A-1QDK3 scanner requires minimum 2.5 SCFH purge air flow for continuous high-temperature furnace operation.

5. Ignoring SIL Safety Calibration Records

Problem: Installing uncalibrated replacement probes invalidates site SIL3 safety audit compliance documentation.

Avoidance Steps: Retain factory calibration certificate shipped with each scanner; record serial number and calibration date in boiler safety logbook; perform on-site flame signal trim after physical installation to match burner control setpoints.

Related products