Fireye UV1A3 Ultraviolet Flame Scanner

Technical Specifications

Model：UV1A3 Brand：Fireye Product Type: Non self-checking ultraviolet flame scanner for industrial cycling burner flame monitoring

Detection Feature:

• Detection spectrum: UV-C band 190~270nm, insensitive to ordinary visible light

• Applicable fuel: Natural gas, propane, No.2 light fuel oil

• Working principle: Detect ultraviolet radiation generated by combustion flame

• Safety logic: Non self-check design, fault verification executed at each burner start/stop cycle

Electrical Parameters:

• Cable: 36 inch (915mm) TC-ER tray exposed run shielded cable,18AWG red & black conductors

• Cable standard: UL1569, crush and impact resistant

• Wiring terminals: S1, S2, no polarity requirement

• Operating voltage: 425 VDC ±25 VDC

• Compatible with Fireye EUV1, M-Series II, MicroM, BurnerLogix, Nexus flame safeguard controls

Mechanical & Optical:

• Mounting interface: 1/2" NPT threaded coupling

• Lens: Quartz UV transparent optical lens

• Housing: Rugged alloy housing

• Shield drain wire bonded to threaded coupling for grounding

Environmental:

• Operating temperature: -40℃ ~ +94℃

• Ambient humidity: Max 85% RH, non-condensing

• Weight: Approx 0.49kg

System compatibility

UV1A3 belongs to Fireye UV1A series flame scanner family. Compatible with Fireye EUV1 amplifier, M-Series II, MicroM, BurnerLogix and Nexus burner safeguard control systems. Works with standard burner sight tubes and mounting adapters for boilers, furnaces and kilns. This non-self-check scanner is designed for burners cycling at least once every 12 hours. Widely used for industrial combustion safety monitoring and spare replacement.

Function

UV1A3 is ultraviolet flame scanner manufactured by Fireye. It captures ultraviolet radiation emitted by flame during combustion. This is non-self-check model, the safeguard controller automatically performs scanner fault detection on every burner cycle. It transmits flame present or flame loss signal to burner control chassis. If flame failure occurs, the safety interlock will cut fuel supply immediately to prevent accumulation of unburned fuel and explosion risk. The integrated short 3ft TC-ER shielded cable is suitable for compact burner installation with short wiring distance. Widely deployed for gas and light oil boiler burner flame monitoring and spare replacement.

Installation

Follow lockout/tagout safety procedure before installation. Mount UV1A3 to burner sight port via 1/2"NPT thread. Aim quartz optical window toward flame zone. Route TC-ER shielded cable, connect red and black wires to S1/S2 terminals, connect drain wire to ground. Perform burner ignition commissioning, verify stable flame signal during normal firing.

InterfaceQuartz optical lens,1/2"NPT threaded coupling,36 inch TC-ER shielded cable,red/black 18AWG conductors and drain wire for Fireye UV1A3.

FeatureOriginal Fireye UV1A3 non self-check UV flame scanner,36 inch UL1569 TC-ER shielded short cable,1/2"NPT mounting thread,no polarity wiring,robust mechanical cable protection. This spare unit is used for industrial boiler and furnace burner flame safety monitoring maintenance and hardware replacement.

DiagnosticNo flame signal: Inspect lens contamination, optical alignment, cable damage and wiring continuity. False flame alarm: Check UV interference from arc welding or strong ultraviolet light sources. Intermittent flame signal: Check cable vibration, loose connection or lens condensation. Cycle lockout fault: Verify flame amplifier status and cable insulation integrity.

Product BriefUV1A3 is Fireye UV1A series non-self-check ultraviolet flame scanner equipped with 3ft TC-ER shielded cable, for cycling gas and light oil burners, used for boiler flame detection and combustion safety interlock,classic spare for industrial furnace combustion control.

DisclaimerAll parameters are for reference only and shall not be used as the basis for quotation. Goods are scarce, overseas delivery lead time is 3-7 working days. It is only used for equipment maintenance and replacement.