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Crowcon Fgard IR3 | Multi-Spectrum IR Flame Detector | 0.1 m² fire at 60 m in <5 s, SIL2
The Crowcon Fgard IR3 is an explosion-proof multi-spectrum infrared flame detector for hydrocarbon liquid and gas fires. It responds in under 5 seconds to a 0.1 m² fire at 60 m, using current IR algorithms to keep false alarms low. Heated optics stop condensation, ice and water forming on the window, and automatic optical verification removes the need for reflector checks.
Key features
- Multi-spectrum IR detection of all hydrocarbon fires
- 60 m detection range
- Intelligent heated optics
- FM 3260 and EN 54-10 approvals
- SIL2 certified to IEC 61508
- Copper-free aluminium or 316 stainless steel housing
- Specifications
- Downloads
| Part Number | Fgard IR3 |
| Brand | Crowcon |
| Detection | Hydrocarbon fires, 0.1 m² at 60 m |
| Response | <5 s typical |
| Power | 3 W min; 15 W max with heater (32 Vdc) |
| 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 | IP66 / NEMA 4X |
| Approvals | Class 1 Div 1 B, C, D; ATEX/IECEx/INMETRO/PESO Ex db IIC T4; FM 3260; EN 54-10; SIL2 |
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