

FV421I IR Flame detector
The FV421I Intrinsically Safe IR Flame Detectors are intended for applications demanding a high level of protection where a rapid response to fire is important within Exia zoned areas.
Key Features:
- Triple waveband infrared solar blind flame detection for optimum false alarm immunity
- Unrivalled black body rejection over a wide range of source temperatures
- Automatic Optical Integrity Monitoring
- 4 Range settings - 6m, 12.5m, 25m & 50m
- IS certified, Baseefa 14ATEX0245X, IECEx BAS 14.0113X
- Highly configurable via switch settings or P.C. software
- MED Marine approved
- SIL2 certified (Future Enhancement)
- Highly sensitive to flame thus increasing the probability of early detection of hydrocarbon fires over a longer range
- Able to see flames through smoke and through high densities of solvent vapours thus increasing the probability of early detection of hydrocarbon fires
- Insensitive to artificial light sources such as halogen lights
- Consistent high sensitivity flame detection throughout a 90° field of view
- Consistent detection of different types of hydrocarbon fuels from alcohol to aviation fuel
- Regular self-testing of critical electronic circuits and regular monitoring of the detector window (OIM) reducing the frequency of regular maintenance visits
- Options of different system interfaces as standard
- Sealed to IP66 and IP67 (when suitable cable gland and sealant are used) ensuring long term reliability in harsh environments