Product Details

The Fireye SB49600-91 is a compact ultraviolet flame scanner designed for the Fireye Bi-Flame dual burner monitoring platform. This Bi-Flame UV flame scanner captures UV radiation emitted by gas and oil flames and sends processed flame signals back to the Bi-Flame control unit for continuous supervision. As a reliable self-check ultraviolet sensor, it supports built-in self-verification to detect scanner faults, avoiding false flame signals caused by sensor failure. This 1/2 NPT flame detection probe is widely mounted on boilers, furnaces and process heaters and stocked as genuine replacement spare part for Fireye Bi-Flame combustion safety systems.

Basic Parameters

Brand: Fireye

Model: SB49600-91

Type: UV flame scanner

Mount thread: 1/2 inch NPT

Compatible system: Fireye Bi-Flame dual burner monitor

Compatible fuels: Natural gas, propane, light fuel oil

Matching accessory: Optional magnifying lens SB49600-98, heat insulator 35-69 for high ambient temperature

Variant note: SB49600-90 is the standard version; SB49602-91 features 1 inch NPT thread

Product type: Original Fireye flame sensing assembly

Supported Functions

This scanner continuously detects ultraviolet radiation from the flame. When the controller receives a valid flame signal, burner operation is allowed to continue. If the flame disappears or the scanner fails the self-check routine, the system triggers safety lockout and cuts fuel supply. It distinguishes real flame from stray light to reduce nuisance trips during normal burner modulation.

Core Functions

The compact body fits tight sighting ports on burner housings. The 1/2 NPT threaded bushing enables straightforward installation with standard flame sight fittings. The self-check function improves overall system safety compliance, and it serves as direct drop‑in substitution for existing SB49600-91 scanners.

Hardware Specifications & Environmental Features

Mounting: 1/2" NPT sight port installation

Recommended sight distance: Within 18 inches of flame

Storage temperature: -40 °C to +70 °C

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

Housing: Rugged metal scanner head

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 Bi-Flame controller compatibility and sighting distance before ordering; use heat insulator if the mounting ambient temperature exceeds the scanner rating.

This is from our current stock.

available stock.xlsx