Fike Triple IR (Hydrogen) Flame Detector (FIK-IR3-H2-AS11)

The Fike FIK-IR3-H2-AS11 is a triple IR (IR3) hydrogen flame detector for fast, reliable detection of hydrogen fires in all weather and light conditions.

It handles slow-growing fires as well as sudden eruptions of fire, and its built-in event logger helps investigate the cause and development of fire events. This version has M25 conduit openings.

Key features

• IR3 detection of hydrogen (H2) fires
• Ultra-fast mode detects hydrogen fireballs or explosions within 40 ms
• Detection range up to 30 m
• Data/event logger stores alarms, faults and other events in non-volatile memory
• Automatic and manual built-in test of window cleanliness and overall operation
• Window heater to prevent condensation and icing
• Tilt mounting bracket (ordered separately) fits above or below the detector

Technical specifications

• Part number: FIK-IR3-H2-AS11 (M25 conduit openings)
• Detection: 40 ms for fast burst of explosion; 1.5 s for 0.8 m hydrogen fire at 0 to 20 m; 4 s at 20 to 30 m
• Field of view (IR): 90° horizontal, 75° vertical
• Time delay: 0 to 30 seconds (adjustable)
• Operating voltage: 24 VDC nominal (18 to 32 VDC)
• Current consumption: standby 120 mA; maximum 180 mA (including window heater)
• Outputs: alarm (normally open) and fault (normally closed) relays rated 2 A at 30 VDC; 0-20 mA stepped current output; Modbus RTU on RS-485
• 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
• Weight: detector (316 stainless steel) 3.0 kg
• Operating temperature: -55°C to +75°C (option to +85°C)
• Humidity: up to 99% RH, non-condensing
• 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