Detect hot particles before they glow
Seeing black particles in the dark
Firefly’s spark detection system uses TrueIR™ detectors and advanced signal processing to detect hot particles in the process flow, even if they are not glowing. Sparks visible to the human eye have a temperature of at least 700°C. But many materials, such as wood, can catch fire at much lower temperature, around 400°C. By the time sparks can be seen, it may already be too late.
Insensitive to daylight
The Firefly TrueDetect™ technology is insensitive to daylight and enables detection down to the minimum ignition temperature (MIT).
Firefly’s TrueIR™ detectors only operate in the infrared spectrum. Conventional spark detectors, by contrast, are based on silicone photodiodes that detect visible light and near-infrared radiation, i.e. temperatures from 650° C or higher.
All Firefly TrueIR™ detectors are equipped with patented Multi-Checkpoint™ technology to ensure rapid and accurate detection. Using a derivative measuring principle, Firefly detectors can identify hazardous particles traveling at speed up to 50 meters per second.
Minimum ignition temperature and energy level
|MATERIAL||CLOUD||LAYER||MIN. CLOUD IGNITION ENERGY, J|
|WOOD||470 °C / 878 °F||260 °C / 500 °F||0,04|
|WHEAT FLOUR||440 °C / 824 °F||440 °C / 824 °F||0,06|
|CELLULOSE||480 °C / 896 °F||270 °C / 518 °F||0,08|
|SUGAR||370 °C / 698 °F||400 °C / 608 °F||0,03|
|COCOA||510 °C / 950 °F||240 °C / 464 °F||0,10|
|ALUMINUM||610 °C / 1130 °F||326 °C / 619 °F||0,01|
|COFFEE||720 °C / 1328 °F||270 °C / 518 °F||0,16|
Source: NFPA (National Fire Protection Association)