Thermal Imaging Cameras Flashcards
to compensate for gaps in the focal length of the lens, each member carrying a TIC will also carry
a hand tool
To maintain orientation, member should use
wall, ropes, or hose lines in obscured visibility
thermal Imaging Camera (TIC) should only be used as an_______ in navigation
aid
to regain situational awareness and speed of movement, members should
not look at the TIC camera while moving
What should be used at the entrance to each area and more often in large areas
3 point scan
What are the objectives of the 3 point scan
Life Safety – Are there any victims or other firefighters present in the
space?
2. Fire conditions
a. What is the level of the thermal layer in relation to an object of
identifiable size, such as a door or a piece of furniture?
b. Is there any convection of heat or fire gases present?
c. What is the fire source?
d. Is there a lack of thermal contrast?
e. Structural conditions
- What is the building construction (type, presence of trusses, types of
wall, etc.)? - What is the structural integrity (presence of cracks in the walls,
deteriorated supports, voids or holes, etc.)?
The 3 point scan is up down and all around (4 sides) starting with
right to left
How can TICS show temperature differences?
Thermal imaging
cameras only show temperature differences between objects and not an
optical image of the objects. The greater the temperature difference, the more
distinct the thermal image.
The heat from some high-temperature objects or sources of high heat may
be blocked, obscured, or made less distinct in the thermal image display
by any of the following
Water mist, spray, or highly saturated fog
1. Some chemical substances in a concentrated cloud or vapor
2. Extremely dense smoke
3. Heated smoke or a layer of heated gases
What will help you determine if you are looking at a reflection with a TIC?
Using the digital temperature readout
When is overhaul most effective?
if imaging is conducted prior to removing material.
Items such as heat registers may appear as hot
How should you confirm heat on the TIC?
use your hand to feel for heat and look at like items to determine a normal IR signature
What feature on the TIC enables the user to track the hottest or the coldest object
in the display and displays its relative temperature.
Hot / Cold Spot Tracker
What happens to the center crosshair Direct Temperature Measurement (DTM) readout while the spot tracker is in use?
turns off while the Spot Tracker is in use.
When does the Scott X380N lose its intrinsic safety?
when a battery change is performed in an explosive atmosphere
