Name: 45UV5-1101 Fireye UV Self‑Checking Flame Scanner, 1" BSP Thread Ultraviolet Flame Detector for Gas & Light Oil Burner Flame Failure Protection - MASSIVE
Brand: Fireye

Description

45UV5-1101 Fireye UV Self‑Checking Flame Scanner, 1″ BSP Thread Ultraviolet Flame Detector for Gas & Light Oil Burner Flame Failure Protection

Product Application

45UV5‑1101 is a self‑diagnostic ultraviolet flame scanner of Fireye 45UV5 series. It detects UV radiation generated by fuel combustion to judge flame presence or loss. It must work with matched Fireye flame safeguard controllers such as 25SU3 / 25SU5 to realize burner flame‑out interlock protection. Common application scenarios: power plant utility boilers, industrial furnaces, incinerators, process heaters. Applicable fuels: natural gas, propane, methane, light diesel and non‑steam atomized light oil. It supports single‑burner and multi‑burner systems, can distinguish target burner flame from adjacent burner background flame. The built‑in electromagnetic shutter performs periodic self‑check to verify the UV tube and signal circuit health status, widely used for continuously fired combustion equipment with infrequent cycling operation.

45UV5-1101

Product Specifications

Part Number: 45UV5‑1101
Brand: Fireye
Sensor Type: Ultraviolet (UV) flame scanner
Self‑Check: Built‑in electromagnetic shutter for automatic self‑diagnosis
Mount Thread: 1 inch BSP
Frequency: 50 Hz version
Optical Lens: Planoconvex quartz lens for higher UV sensitivity
UV Tube: Replaceable UV sensing tube
Enclosure: Cast aluminum housing with oil‑resistant sealing gasket
Compatible Controller: Fireye 25SU3, 25SU5, BurnerLogix, Flame‑Monitor series flame safeguard
Weight: Approx. 1.81 kg (4.75 lbs)
Protection & Certification: Hazardous location approval, CE certification
Product Status: Active spare part for combustion safety system

Core Technical Parameters

Detection Spectrum: Ultraviolet band generated by hydrocarbon flame
Self‑Check Mechanism: Motor‑driven electromagnetic shutter periodically blocks UV light to verify scanner integrity
Lens Material: Planoconvex quartz
Mounting: 1‑inch BSP threaded burner sighting port installation
Power Interface: Wiring terminal inside scanner housing
Operating Ambient Temperature: Scanner housing working temperature limited (avoid direct high‑temperature radiation from furnace)
Maintenance Feature: UV sensing tube can be replaced on site without replacing whole scanner
Diagnosis Alarm: Scanner fault signal transmitted to flame safeguard controller
Anti‑interference: Designed to resist visible light and infrared radiation interference

Recommended Matching Models (8 Models)

Complete Fireye flame safeguard system spare parts:

25SU3 Flame Safeguard Controller
25SU5 Burner Control Unit
Replacement UV Tube for 45UV5 series scanner
Fireye BurnerLogix Combustion Controller
Flame Cable Assembly for scanner wiring
Burner sighting pipe / cooling air fitting
Solenoid gas shut‑off valve
Flame amplifier module

45UV5-1101

Product Features

✅ Automatic Self‑Checking Shutter Mechanism Electromagnetic shutter periodically cuts off incoming UV signal. The control system verifies whether scanner correctly reports flame loss, prevents unsafe false flame signal caused by UV tube aging or circuit failure.

✅ Planoconvex Quartz Optical Lens High‑transmittance quartz lens improves UV receiving sensitivity, stable flame signal for distant or weak flame viewing conditions.

✅ Replaceable UV Sensing Tube Only replace UV tube during sensor aging failure, no need to replace the whole scanner, reduces maintenance cost.

✅ Cast Aluminum Sealed Housing Robust aluminum enclosure with oil‑resistant gasket, suitable for boiler burner front high‑dust, oil mist environment.

✅ 1‑Inch BSP Standard Mounting Thread Matches standard burner sight port, easy to install on furnace flame viewing pipe; can add cooling air accessory to protect scanner from high temperature.

✅ Multi‑Controller Compatibility Compatible with multiple Fireye flame safeguard platforms, flexible for new burner project and old combustion system retrofit.

✅ Flame Discrimination Capability Good ability to separate monitored burner flame from background flame of adjacent burners in multi‑burner furnace.

Installation Guidelines

Install 45UV5‑1101 onto burner sighting tube by 1‑inch BSP thread, keep optical axis directly aiming at burner flame root.
Add cooling air purge accessory if furnace radiation temperature is high, to protect scanner housing from overheating.
Route flame signal cable from scanner terminal to matched 25SU3 / 25SU5 flame safeguard controller, use dedicated shielded flame cable.
Tighten scanner housing cover, guarantee gasket sealing to prevent dust and oil mist ingress.
Complete gas valve interlock wiring according to combustion safety logic diagram.
Power on flame safeguard controller, perform pre‑ignition scanner self‑check sequence.
Execute burner ignition test, verify flame signal is correctly captured and flame‑out protection trip action works normally.
Lock mounting thread after sight angle adjustment is finished.

Maintenance Instructions

Daily Maintenance Check flame status indicator on burner controller. Inspect scanner lens for soot contamination, check cooling air supply status if fitted. Check housing seal integrity.

Periodic Maintenance Every 6–12 months: Clean quartz lens surface soot. Run full scanner self‑check test via Fireye controller. Inspect cable terminal tightness. Replace aging UV tube according to operating hours.

Fault Maintenance

Self‑check fault alarm: Check shutter mechanism stuck, UV tube burnout or signal cable disconnection.
No flame signal during normal combustion: Clean soot covered quartz lens, check sight pipe blockage, verify scanner aiming angle.
False flame alarm: Check UV tube aging, adjacent burner cross‑fire interference.
Do not disassemble internal shutter assembly on site.

Long‑Term Operation Tips Keep continuous cooling air supply for high‑temperature burner front installation. Regularly purge soot on quartz lens. Stock spare UV tube for quick replacement.