IR3
Triple IR Flame Detector
Triple IR Flame Detector
The FlameSpec™ IR3 flame detector provides ultra-fast response, high performance, and reliable detection of all types of hydrocarbon fires (visible and non-visible).
The detector addresses slow-growing fires as well as fast eruptions of fire using improved triple IR (IR3) technology.
The detector operates in all weather and light conditions with the highest immunity to false alarms.
Key Benefits
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Highest immunity to false alarms.
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Detects up to 262 ft (80 m) for a 1 ft2 (0.1 m2) n-heptane pan fire.
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Hydrocarbon flame detection. Three wavelengths in the infrared spectral range of 4.0 to 5.0 μm with clear separation.
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Each sensor has the same field of view to improve false alarm immunity.
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Optimized hangar mode option for aircraft hangars, helipads & truck loading racks available, see FLS-IR3-CO2L data sheet.
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Ultra-fast detection mode – detection within 40 milliseconds for fireballs or explosions.
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Fast flame detection, <1.5 seconds for standard fire up to 30 m. Option for <0.5 seconds, in compliance with NFPA 33, available.
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5 selectable sensitivity levels.
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Universal outputs, 3- and 4- wire, 4—20 mA sink / source, Fire, Auxiliary and Fault relays. RS485 port using Modbus RTU.
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Event logger – alarms and faults are logged to non-volatile memory.
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Built-In-Test (BIT) – Automatic and manual self-test of window cleanliness and overall detector operation.
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Dirty optics warning for preventive maintenance needs.
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HART® 7 for configuration and maintenance (option available).
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Window heater to avoid condensation and icing.
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Stainless steel tilt mount provides horizontal and vertical adjustment.
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Marine approvals - MED & DNV Type approval available on request.
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Functional safety - SIL 2 capable (option available).
Downloads
Applications
Downloads
The FGD communication software is one method used to configure and monitor the FlameSpec™ range of flame detectors. The software can be easily downloaded by completing the form below:
When Milliseconds Matter:
High-Speed Detection for NFPA 33 Compliance
From lithium battery lines to electrostatic spray booths, speed is the ultimate safety metric. NFPA 33 (Section 9.9.1) requires a detection reaction time of 0.5 seconds or less—a benchmark that many standard detectors fail to meet.
The FlameSpec™ X5 range is purpose-built for these high-speed applications. With FM-verified performance, the X5 series provides the rapid response necessary to trigger automatic shutdowns, protecting both your personnel and your high-value production assets..
Application Challenges
High-risk areas require a high speed of response to small explosive or fast-growing fires.
High-speed fire detection without false alarm is critical to maintain safety and operational efficiency.
Detection within the spray booth should activate system shutdown and shut off ventilation within 0.5seconds for NFPA 72 and NFPA 33 compliance.
The FlameSpec ™ X5 hispeed detector has been designed and independently tested by FM to confirm detection speeds down to 0.3 seconds for IPA and other alcohols used in painting and coating applications.
Detection Strategy & Zone Types
IR3 Flame Detection with high-speed algorithm
Different areas of automotive facilities require tailored detection strategies:
Automotive Spray Booths:
High speed of response, sub 0.5 seconds.
Lithium Battery Production:
High speed of response to lithium-ion batteries and plastic fires.
Hydrogen Fuelled Vehicles:
Use of Hydrogen changes the risk and must be indendantly assessed. Hydrogen burns with an invisible flame and can be an explosive risk.
Key Certifications
The FlameSpec™ Range is rigorously tested and certified to meet global safety, performance, and reliability standards.
Its comprehensive range of certifications ensures compliance with international regulations for hazardous environments, making it a trusted solution for high-stakes applications. From explosion-proof approvals to functional safety, and ingress protection, these certifications validate the detector's ability to perform under the most demanding industrial conditions.
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ATEX / IECEx Zone 1 and 2 certified, cFMu Class 1 Div 1
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FM3260 and EN54-10, performance approval
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Tested according to NFPA 33 requirements, <0.5 seconds response time