FL500 UV/IR Flame Detector

Brand: MSA

The FL500 UV/IR Flame Detector combines ultraviolet (UV) and infrared (IR) spectral detection to provide rapid and reliable flame sensing in hazardous environments. With fast response times, high false-alarm immunity, and rugged construction, it’s ideal for industrial safety applications.

The FL500 UV/IR Flame Detector is a cutting-edge industrial safety device that uses dual-spectrum ultraviolet and infrared technology to quickly and accurately detect hydrocarbon fires, while minimizing false alarms. Engineered for hazardous environments, it offers rapid flame response, continuous self-diagnostics, and a rugged stainless steel housing built to withstand extreme conditions.

Manufactured by MSA Safety, a global leader in workplace safety solutions for over a century, the FL500 represents the highest standards in fire detection technology. In the UAE, Starboard International FZE proudly stands as the leading supplier of the FL500 UV/IR Flame Detector in Dubai, delivering certified, reliable safety solutions for oil & gas, petrochemical, and industrial facilities.

Technical Specifications

Mechanical & Environmental
Housing:	316 stainless steel, powder coated
Dimensions:	Diameter 114 mm (4.5″); Length 140 mm (5.5″)
Weight:	4.0 kg (9 lb)
Temperature Range:	-55 °C to +85 °C
Optical
UV Detection Band:	185–260 nm
IR Detection Wavelength:	4.35 µm
Field of View:	Up to 130° conical
Electrical & Output
Power Supply:	20–36 V DC
Analog Output:	4–20 mA (sink/source)
Digital Communication:	HART, RS-485 Modbus RTU
Relays:	Two configurable 5 A @ 30 VDC/250 VAC

Certifications & Approvals

FM, CSA, ATEX, IECEx, UKCA, CE listings
Hazardous Area: Class I/II/III Division 1, Groups A–G
Ingress Protection: IP66/IP67 (Type 6P)

Key Features of FL500 UV/IR Flame Detector

Dual‑Spectrum Detection: UV (185–260 nm) and IR (4.35 µm) sensors jointly detect flames, reducing false positives from welding, arcs, or hot objects.
FM Performance Certified: Validated on seven fuels—heptane, methane, methanol, propane, ethane, butane, and hydrogen—with confirmed 130° viewing cone.
Continuous Optical Path Monitoring (COPM): Self-tests every two minutes to confirm optical clarity and circuitry health.
Safe Field Testing: Compatible with the TL105 test lamp, allowing safe, on‑site simulation of flame flicker.
Extreme‐Temperature Rated: Operational between –55 °C and +85 °C, suitable for diverse environments.
LED Status Indicators: Three LEDs show normal, warning, and alarm states at a glance.
Durable Construction: 316 stainless steel enclosure, powder-coated for corrosion resistance.

Downloads

Frequently Asked Questions (FAQ)

What types of fires can the FL500 UV/IR Flame Detector detect?

The FL500 is designed to detect hydrocarbon-based fires such as those caused by fuels like methane, propane, butane, heptane, methanol, and hydrogen. It uses both ultraviolet (UV) and infrared (IR) sensors to accurately identify flames while rejecting false triggers from non-flame sources.

How does the FL500 minimize false alarms?

By combining UV and IR sensors with advanced flame detection algorithms, the FL500 reduces false alarms from sunlight, hot surfaces, welding arcs, or electrical discharges. Only the simultaneous detection of UV and IR radiation within specific time and pattern thresholds triggers an alarm.

Is the FL500 suitable for outdoor or harsh environments?

Yes. The FL500 is built with a 316 stainless steel enclosure and rated IP66/IP67 (Type 6P), making it ideal for use in harsh or corrosive environments such as offshore platforms, refineries, or chemical plants. It operates reliably in temperatures ranging from –55 °C to +85 °C.

What communication protocols does the FL500 support?

The detector supports multiple output options including 4–20 mA analog (sink or source), HART®, RS‑485 Modbus RTU, and configurable relay outputs. This allows seamless integration with most industrial control and safety systems.

Who is the leading supplier of the FL500 UV/IR Flame Detector in the UAE?

Starboard International FZE is the leading supplier of the FL500 UV/IR Flame Detector in Dubai, UAE, providing expert support, genuine products, and customized flame detection solutions for industrial safety needs.

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