21 Thermal Imaging Camera Flashcards
Infrared emitters can be broken down into 3 categories?
- Passive: Primarily absorb and dissipate IR energy from active or direct emitters (inanimate objects)
• A passive object may be a chair as an example - Active: Emit IR energy in low to medium strength and varying intervals (living organisms)
• Yourself as an example - Direct: Constant high strength IR energy emitters
• A hot water tank as an example
The MSA 5200 has 2 distinct modes of operation?
- Normal mode (high sensitivity and low temp. 0-320 Fahrenheit)
- Firefighter mode (low sensitivity and high temp. 320 - 1040 Fahrenheit)
3 Keys to effective TIC operation?
- Orientation
- Interpretation
- Communication
3 Infrared application limits?
- Glass (infrared energy will not penetrate glass, however heated glass will show up lighter in colour)
- Water (Infrared energy will not penetrate water, however some penetration may occur in a fog or mist)
- Steam (Infrared energy may or may not penetrate steam, depending on its density)
What are the scanning priorities?
- Scan the ceiling
- Scan the centre of the room
- Scan the floor
- Scan behind you as you progress
10 examples for TIC application?
- Size-up
- Search and Rescue
- Fire Attack
- Ventilation
- Overhaul
- Hazmat events
- Wild land operations
- Training
- Exterior Woodland search
- Water rescue events
Battery indicator on the TIC may show?
Green indicates full battery
Yellow indicates battery life in excess of 15 min.
Red indicates a battery life less than 15 min.
Flashing red indicates 60 sec. or less
Define Thermal inversion?
It occurs when an object changes shade even though its temperature has not.
It is a result of a change in temp. of the environment not the object.
How can a TIC help in overhaul?
By identifying hot spots accurately it minimizes the amount of secondary damage caused to extinguish the fire.
The identification of those hidden fires greatly reduces the incidence if rekindle.
