an introduction to fire sentry c 0 r p o r a t i o n electro-optical fire detection & visual...
TRANSCRIPT
An Introduction toAn Introduction to
FIRE SENTRYFIRE SENTRYC 0 R P O R A T I O NC 0 R P O R A T I O N
Electro-Optical Fire DetectionElectro-Optical Fire Detection&&
Visual Smoke DetectionVisual Smoke Detection
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Company Background Founded in 1984
Privately owned
Headquarters in Brea, California, USA
Technology based onMilitary Missile Warning Systems
Industry Leader in Advanced DigitalElectro-Optical Fire Detection
Second Largest Manufacturer ofElectro-Optical Fire Detectors in the World(Frost & Sullivan Marketing Report Published in 2000)
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Technical Background Aerospace Designers
Former Aerospace Production Personnel
Aerospace Design Experience: Armored Vehicle Early Warning Aircraft Self-Protection Countermeasures AAA Early Warning Ground & Air-to-Air Missile Early Warning Submarine Countermeasures
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Electro-Optical Fire DetectorsUsed in many Industries: Oil & Gas Exploration and Production Gas Transmission Petrochemical Automotive Semiconductor Aviation Explosives, munitions and airbag
manufacturing All Types of Manufacturing
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WBIR – Wide Band Infrared(0.7 to 3.5 micrometers)
NIR – Near Band Infrared(0.7 to 1.1 micrometers)
IR – Narrow Band Infrared(Typically 4.3 micrometers)
UV – Ultraviolet(Typically 185 to 260 nanometers)
VIS – Visible Light(400 to 700 nanometers)
FireBusTM
(FSC’s proprietary RS-485 Communications Software) FirePic
TM
(Pre-Fire Alarm Data stored in Non-Volatile Ram)
Glossary of Terms
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Theory of Operation
Electro-Optical Fire Detectors
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Electro-Optical Fire Detectors sense the radiated Electromagnetic Fire energy in the Ultraviolet and Infrared wavelengths.
Electro-Optical Fire Detectors
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Electromagnetic Radiation Electromagnetic Radiation is energy
waves produced by the oscillation or acceleration of an electric charge.
Electromagnetic Radiation can be arranged in a spectrum that extends from waves of extremely high frequency and short wavelength to extremely low frequency and long wavelength.
Visible Light is only a small part of Electromagnetic spectrum.
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There are (3) phenomena throughwhich energy can be transmitted:
1. Electromagnetic Radiation
2. Conduction
3. Convection
Unlike conduction and convection, electromagnetic radiation needs nomaterial medium for transmission.
Electromagnetic Radiation
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Electromagnetic Spectrum
Fire Sentry Electro-Optical Fire Detectors
use all or a combination of these three light
spectra to detect a fire
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Hydrocarbon Fires produce:Water and Carbon Dioxide
&Electromagnetic Radiation
IR (Heat), UV and VIS
Typical combustion of a Hydrocarbon
C3H8 + 5O2 = 3CO2 + 4H2O(Propane + Oxygen = Carbon Dioxide + Water)
Incomplete combustion produces more Carbon Monoxide (CO)
Electro-Optical Fire Detectors
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Advantages of Electro-Optical Fire Detectors: Fast - detects Electromagnetic Radiant Energy
from the fire(Moves at the Speed of Light 186,000 mps/300,000 kps)
Fast - detects fire in the early stages
Area Coverage, not a point detector. Does not have to be located directly at the fire event
Electro-Optical Fire Detectors
An Introduction toAn Introduction to
FIRE SENTRYFIRE SENTRYC 0 R P O R A T I O NC 0 R P O R A T I O N
Electro-Optical Fire DetectionElectro-Optical Fire Detection&&
Visual Smoke DetectionVisual Smoke Detection