Fike Triple IR (Hydrocarbon) Flame Detector (FIK-IR3-AS11)

The Fike FIK-IR3-AS11 is a triple IR (IR3) optical flame detector for ultra-fast, reliable detection of all types of hydrocarbon fire, visible and non-visible, in all weather and light conditions.

It handles slow-growing fires as well as sudden eruptions of fire with high immunity to false alarms, and has relay, 0-20 mA and Modbus RS-485 outputs. This version has M25 conduit openings.

Key features

• Triple IR (IR3) detection of hydrocarbon fires
• Ultra-fast mode detects fireballs or explosions within 40 ms
• Extreme sensitivity: detects a 0.1 m² n-heptane pan fire at up to 80 m
• 1.3 s detection of a 0.1 m² n-heptane pan fire at up to 15 m
• High immunity to false alarm sources such as sunlight, arc welding, lamps and heaters
• Data/event logger records alarms, faults and other events in non-volatile memory
• Built-in test (automatic and manual) of window cleanliness and overall detector operation
• Window heater to prevent condensation and icing
• Tilt mount (FIK-TMO-S01, ordered separately) can be fitted above or below the detector

Technical specifications

• Part number: FIK-IR3-AS11 (M25 conduit openings)
• Detection: 40 ms for fast burst of explosion; 2.6 s for 0.1 m² pan fire at 0 to 30 m; 3.7 s at 30 to 70 m
• Field of view (IR): 90° horizontal, 75° vertical
• Time delay: 0 to 30 seconds (adjustable)
• Built-in test: automatic or manual
• Operating voltage: 24 VDC nominal (18 to 32 VDC)
• Current consumption: standby 120 mA; 180 mA with all systems operating (including window heater)
• Outputs: volt-free relays rated 2 A at 30 VDC (alarm normally open, fault normally closed); 0-20 mA stepped current output (3-wire and 4-wire, sink and source); Modbus RTU on RS-485
• Indication: tri-colour LED
• Conduit entries: 2 x M25 x 1.5
• Wiring: 12 to 20 AWG (2.5 to 0.35 mm²)
• Size: 140 x 90 x 90 mm
• Operating temperature: -55°C to +75°C (option to +85°C)
• Humidity: up to 99% RH, non-condensing
• Weight: detector (stainless steel 316) 3.0 kg; tilt mount 1.5 kg
• Ingress protection: IP66 and IP68 (2 m, 24 h); NEMA 4X and 6P
• Approvals: ATEX, IECEx and FM/FMC explosion proof; performance to ANSI FM 3260 and EN 54-10
• Warranty: 5 years