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Crowcon Fgard H2 | Hydrogen Flame Detector | H2 flames at 40 m, 2-5 s response, SIL2
The Crowcon Fgard H2 is a flame detector designed only for hydrogen fires, which are hard to see and are not picked up by conventional multi-spectrum detectors. It can detect a 36-inch hydrogen flame plume at 40 m, typically responding in 2-5 seconds. Heated optics keep ice and condensation off the window, and automatic optical verification checks the lens and electronics.
Key features
- Optimised exclusively for hydrogen flames
- Intelligent heated optics
- No reflector optical checks needed
- FM 3260 and EN 54-10 performance approvals
- IP67 / NEMA 6P; SIL2 to IEC 61508
- Specifications
- Downloads
| Part Number | Fgard H2 |
| Brand | Crowcon |
| Detection | Hydrogen flame, 36 in plume at 40 m |
| Response | 2-5 s typical at 40 m |
| Power | 3 W min; 12 W max with heater |
| Operating temperature | -60 to +85 °C |
| Supply | 24 Vdc nominal (18-32 Vdc) |
| Size | 100 mm dia. x 200 mm |
| Material | Copper-free aluminium or 316 stainless steel |
| Weight | Aluminium 2.5 kg; stainless 6.0 kg |
| Cable entry | 3/4" NPT or M25 |
| Outputs | Alarm and fault relays (DPDT 2 A 30 Vdc); 0-20 mA; HART |
| Ingress protection | IP67 / NEMA 6P |
| Approvals | Class 1 Div 1 B, C, D; ATEX/IECEx Ex db IIC T4; FM 3260; EN 54-10; SIL2 |
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