Product Details

The Fireye UV1AL-3 is a non-self-check ultraviolet flame scanner in the UV1AL family, equipped with a 3 ft TC‑ER tray exposed run cable meeting UL 1569 standard for crush and impact resistance. This ultraviolet flame scanner captures ultraviolet radiation released by combustion and sends flame‑present or flame‑loss feedback to Fireye burner safeguard controllers. As a reliable burner UV detector, it adopts a 1/2 inch NPT threaded coupling for direct sight pipe mounting and withstands furnace pressure up to 1 PSI under standard conditions; an optional quartz window coupling raises the pressure rating to 50 PSI for high‑positive‑pressure combustion chambers. This Fireye UV1AL-3 sensor is stocked as genuine replacement spare part, widely deployed on gas and light oil burners matched with BurnerPRO, MBCE and NXF4000 burner management systems.

Basic Parameters

Brand: Fireye

Model: UV1AL-3

Type: Non-self-check UV flame scanner

Cable length: 3 ft / 0.91 m, TC‑ER UL1569 rated

Mounting thread: 1/2” NPT

Standard furnace pressure: 1 PSI; up to 50 PSI with optional quartz coupling

Recommended sensing distance: Within 39 inches / 1 m from flame

Compatible fuels: Natural gas, propane, waste gas, No.2 light fuel oil

Compatible controllers: Fireye BurnerPRO, MBCE, NXF4000

Wiring: Non-polarized two-conductor 18 AWG signal cable

Product type: Original Fireye flame sensing spare sensor

Supported Functions

This ultraviolet flame scanner continuously monitors UV signals from stable combustion. The burner UV detector converts optical flame energy into valid electrical feedback for the flame safeguard unit. It triggers fuel shutoff and burner lockout once flame extinction is detected. This Fireye UV1AL-3 sensor supports uninterrupted long-term monitoring for both steady and cyclic industrial burners.

Core Functions

The high-sensitivity UV tube identifies genuine flame ultraviolet signals and reduces false alarms induced by hot refractory surfaces. The ultraviolet flame scanner’s short integrated cable suits compact burner enclosures where long cabling is unnecessary. Its threaded sight pipe structure provides dependable sealing and easy optical alignment. Standard pin definition allows direct drop‑in substitution for a faulty UV1AL-3 without extensive rewiring.

Hardware Specifications & Environmental Features

Mounting: 1/2” NPT threaded sight pipe installation

Operating temperature: -40°C to +94°C

Storage temperature: -40°C to +70°C

Relative humidity: 5% – 90%, non-condensing

Housing: Heavy-duty metal casing for harsh combustion environments

Condition: Original new or fully tested refurbished Fireye spare part

Industry Applications: Applied in legacy petrochemical distributed control, old paper making production automation, material handling conveyor lines, packaging and textile machinery, water treatment remote signal collection and large conveyor remote I/O control racks.

Note: Confirm 800 series backplane compatibility, pulse signal type, counting mode and preset logic before ordering.

This is from our current stock.

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