Explosion-Proof UV/IR Flame Detector

In facilities handling hydrocarbons, a fire can develop within seconds. Optical flame detectors identify the characteristic ultraviolet and infrared radiation emitted by flames and respond much faster than smoke or heat detectors, making them essential for open process areas and large spaces. UV/IR detectors combine an ultraviolet sensor with an infrared sensor and alarm only when both confirm a flame, while multi-spectrum IR (IR3) detectors analyse several infrared wavelengths to detect hydrocarbon fires at long distances, with high immunity to sunlight, welding arcs and hot objects.

Hamoon supplies flame detectors from leading safety manufacturers in flameproof (Ex d) stainless steel or aluminium housings, with ATEX and IECEx approvals and SIL-rated versions. Outputs include 4–20 mA, alarm and fault relays, and HART or Modbus communication, allowing easy integration with fire and gas (F&G) systems. Automatic optical self-tests verify lens cleanliness and detector health.

Typical applications

• Offshore platforms and onshore wellheads
• Gas compressor stations and turbine enclosures
• Loading racks, tank farms and refineries
• Petrochemical process units and flammable materials stores

Contact Hamoon for detector mapping support and a quote.

Key points when selecting a Explosion-Proof UV/IR Flame Detector

• Choose technology by fuel: IR3 for hydrocarbons, UV/IR for mixed fuels and hydrogen.
• Check field of view and range to cover the area with fewer detectors.
• SIL 2 and explosion-proof approvals are mandatory for F&G systems.
• Check immunity to false-alarm sources such as welding and sunlight.

Explosion-Proof UV/IR Flame Detector — frequently asked questions

How fast does a flame detector respond?

Typically within 5 seconds, some models under one second — much faster than smoke or heat detectors.

Do flame detectors work outdoors?

Yes. IR3 and UV/IR detectors are designed for outdoor process units, platforms and tank farms.