Product Details

The Fireye UV-1A, commonly written as UV1A, is the base model of the UV1A series, a compact non self‑check ultraviolet flame scanner for safe industrial locations. This UV scanner uses a non‑replaceable quartz Geiger‑Müller UV tube to capture ultraviolet radiation released during combustion and sends pulse flame signals to compatible Fireye M‑Series, MicroM and MBUV flame amplifiers. As a reliable flame sensor, it adopts simple two‑wire polarity‑free wiring and 1/2 inch NPT mounting thread, available with different cable lengths as UV1A‑3, UV1A‑6 and UV1A‑12 variants. This detector is widely used for natural gas, propane and No.2 fuel oil burners and stocked as genuine replacement spare part for boiler flame supervision.

Basic Parameters

Brand: Fireye

Model: UV-1A (UV1A)

Type: Non self‑check UV flame scanner, base standard version

Sensor: Non‑replaceable quartz Geiger‑Müller UV tube

Mount thread: 1/2" NPT

Wiring: Two‑wire, polarity free

Compatible amplifier: MEUV1, MAUV, MBUV series

Supported fuels: Natural gas, propane, No. 2 fuel oil

Difference note: UV‑1A is the base unit; UV1A3 / UV1A6 / UV1A12 differ by fixed cable length

Max ambient temperature: 94 °C

Product type: Original Fireye miniature UV flame scanner

Supported Functions

This ultraviolet flame detector senses UV emission generated by burner flame and sends valid flame signal to the paired flame safeguard control. When flame loss occurs, the flame signal disappears and triggers safety lockout and fuel shutoff. Without built‑in self‑check shutter, sensor integrity verification is completed by the host burner management system in each firing cycle.

Core Functions

The internal UV tube ionizes under flame ultraviolet radiation and generates pulse flame output. Its small body fits limited sight pipe space, and optional quartz window coupling can handle higher furnace pressure. The two‑wire connection simplifies field wiring and retrofit. It supports direct drop‑in substitution for existing UV‑1A scanners on compatible Fireye combustion systems.

Hardware Specifications & Environmental Features

Mounting: 1/2" NPT sight pipe

Operating temperature: -40 °C to +94 °C

Storage temperature: -40 °C to +70 °C

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

Housing: Compact standard metal enclosure

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 amplifier compatibility and cable length before ordering.

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