Description
Fireye 85UVF1-1QD | Quick-Disconnect UV Flame Detector
Dynamic Product Introduction
Combustion loop interruptions and nuisance burner trips on industrial boilers often originate from optical lens fouling or aging internal sensor electronics rather than fuel supply variance. When an older ultraviolet detector loses sensitivity or struggles to maintain a stable flame signal, manual cleaning rarely cures underlying component wear. Deploying the Fireye 85UVF1-1QD resolves this safety-critical reliability bottleneck directly, providing an OEM-spec quick-disconnect scanner engineered to restore precise flame discrimination and simplify future maintenance intervals.
In time-sensitive plant turnaround scenarios, swapping in this exact replacement unit minimizes downtime thanks to its plug-and-play connector design, re-establishing strict burner management compliance without a complete rewiring effort. (Though verifying optical sighting alignment, cooling purge pressure, and spectral matching prior to light-off remains critical.) It handles harsh burner deck environments cleanly, keeping high-capacity industrial furnaces operating safely.
85UVF1-1QD
Key Technical Specifications
| Technical Parameter | Specification Detail |
| Device Category | Integrated UV Flame Scanner with Quick-Disconnect |
| Series Compatibility | Fireye Phoenix Series 2 Burner Management Architecture |
| Sensing Technology | Solid-state ultraviolet (UV) radiation detection cell |
| Spectral Response | Optimized for hydrocarbon combustion wavelengths |
| Electrical Connection | Quick-Disconnect (QD) plug assembly for rapid wiring access |
| Standard Outputs | Internal flame relay (SPST) and 4-20mA analog flame strength signal |
| Enclosure Rating | Heavy-duty industrial cast housing (NEMA 4X / IP66 equivalent) |
| Supply Voltage | 24 VDC nominal |
Global Sourcing & Live-Test SOP (Transparency Core)
Procuring safety-critical combustion hardware demands rigorous optical and electrical validation to guarantee fail-safe field operation.
- Inbound Verification: Incoming scanners undergo serial tracking, OEM label inspection, and anti-counterfeit batch checks against historical Fireye production ledgers.
- Live Simulation: Qualified units are mounted onto a specialized optical test rig to evaluate UV frequency response, flicker recognition, and internal relay switching thresholds.
- Diagnostics: Technicians execute electronic self-check verification, signal amplification sweeps, and 4-20mA output linearity checks to catch latent component drift.
- Final Prep: Optical lenses are polished and inspected, and units are sealed inside heavy-duty anti-static and moisture-barrier packaging to ensure pristine delivery.
The Field Engineer’s Pitfall Guide
❗ Sighting Tube Misalignment: Pointing the scanner off-center or allowing it to view hot refractory surfaces instead of the primary flame envelope can compromise discrimination. Always align the 85UVF1-1QD using an adjustable mounting flange to view the intersection of the pilot and main flame.
❗ Purge Air Pressure Loss: Operating UV scanners in high-dust or heavy-soot environments without continuous positive purge air will rapidly cloud the optical lens and trigger nuisance trips. Always verify purge flow before energizing the burner.
❗ Quick-Disconnect Latching Failure: Failing to fully seat and thread the quick-disconnect plug collar can allow moisture ingress or cause intermittent electrical contact under high-vibration conditions. Always secure the locking ring completely.
Intent-Driven FAQ
What is the primary difference between standard models and the “QD” variant?
The “QD” designation indicates a Quick-Disconnect electrical connector configuration, which allows technicians to replace or service the scanner body quickly without cutting or unwiring field termination lines.
Will this 85UVF1-1QD scanner mount directly onto my existing Fireye mounting flange?
Yes, the unit utilizes standard Fireye Phoenix threaded mounting interface dimensions, ensuring a direct mechanical fit on compatible burner sighting assemblies.
Are these safety-critical flame scanners factory sealed or certified surplus stock?
We maintain strict inventories of both factory-sealed OEM surplus and fully recertified, bench-tested units. Each listing explicitly details the precise condition tier to match your plant’s safety guidelines.
What kind of warranty coverage is included with this replacement scanner?
Every unit is backed by our comprehensive operational warranty, covering electrical component health, optical sensor integrity, and relay switching reliability from day one.
How do I monitor real-time flame signal strength during setup?
The built-in 4-20mA analog output provides continuous feedback regarding relative flame signal intensity, allowing technicians to optimize alignment and monitor lens cleanliness over time.
