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
