Thermal Imaging Cameras Tools 27/data sheet 4 Flashcards
TIC provides a pictorial representation of TEMPERATURE DIFFERENCES that are UNAFFECTED by smoke…
(company OFFICER may be BEST SUITED to carry TIC, doesn’t say must)
TIC detects infrared energy and electronically process it and display it into a viewable image
-IR wave length is most often unaffected by smoke
Who carries a TIC?
LADDER/ENGINE /BATTALION VEHICL
rescue
squad
haz mat company 1
BLACK…?
-least amount of heat and COOLEST object
may not be real cold..just COLDER than other objects
WHITE?
-most HEAT at scene (white-hot)
does not mean fire…only means it is HOTTER than rest of area being viewed
Shades of GRAY…
-temperature range between BLACK and WHITE
These shades of white, black and gray and their differences in colorization are known as THERMAL CONTRAST
some TICs also associate yellow/orange /red with hotter SPECIFIC temperature ranges
Low Contrast…
contrast -thermal contrast or temperature difference in order for thermal imager to display an image
may occur in COOLER areas where there is lack of heat present and all objects are close in temperature
High Contrast…
more heat present, both generated and absorbed by objects, the CLEARER and SHARPER the image will appear…this is true until THERMAL SATURATION …this occurs when everything in the viewing area is heated to temperatures beyond the capability of TIC..the overall are being view will lose contrast and appear whiter and featureless
Changing Thermal Contrast..
Thermal Images thrive on HEAT…..as conditions change from cooler to hotter, back to cooler, images viewed by TIC will change…may indicate FIRE being in close proximity…be aware of change from LOW contrast (cooler/darker) to High (hotter/whiter)
EI or L indicates?
shift of the camera in modes to compensate for higher temperatures
Convected Heat…
white swirling waves or smoke…most often near ceiling area…when searching for fire or extension, operators should attempt to detect convected heat along with its direction and velocity sooner than later….may indicate location of fire
ability to thermally image is dependent on the amount of energy being absorbed by an object
-object or heats source may be concealed by thickness or layering of material
Thermal Imaging cameras are carried and used at ?
ALL STRUCTURAL FIRE OPERATIONS BY ALL UNITS EQUIPPED WITH THIS TOOL
Operators of TIC…
- stay low and slowly scan area
- use 6 SIDED method of scanning (50 degree field of view)
- begin by looking STRAIGHT UP OVERHEAD (1) slowly lower TIC to find seam of ceiling and wall (2) follow seam to left (3) follow seam right (4) (OR LEFT/RIGHT-eventually lowering the TIC to floor area (5) remember look in the REAR
- TIC can be used for person in water, person in woods, ejected from vehicle
- hazmat-vapor clouds, spilled liquids
Thermal Imaging does not see through?
- clear glass or plastic- these act as mirror
- shiny sufaces will reflect- glass, waxed floors, water on floor
- water
GPS WAZE
GLASS/PLASTIC/SHINY/WATER
Average field of view?
50 degrees HORIZONTALLY
FOCal point-3 feet from the camera lens (within 3 feet is too close- may be blurry and out of focus)
-depth perception will vary from camera to camera
Steam and condensation or fogging on the SCBA facepiece, display screen and camera lens may distort clarity of image…
Wipe all 3 places to greatly improve clarity of images
Thermal imaging cameras are NOT INTRINSICALLY SAFE
intrinsically safe
RFI-radio transmissions may cause INTERFERENCE
Functional Check, Inspection, Maintenance shall be made?
Immediately after 0900 and 1800 hour roll calls and after each use
Functional Test…
- turn Camera ON
- check for proper warm up and electronic self test
- place TIC CLOSE TO FACE and view your outstretched hand or another FF
- verify Power/Battery Level
MAINTENANCE:
- BATTERY CHARGING
- examine screws for tightness
- clean and inspect surfaces /mild detergent /warm water
- dry with soft ,lint free cloth
NEVER take TIC apart for any reason..
NEver submerged camera
Repair TIC
TOOL ROOM
- DIVISION has SPARE loaner TO EXCHANGE if Tool Room cannot provide loaner
- on RT-2, STATE LOANER OBTAIN FROM DIVISION AND SERIAL NUMBER OF LOANER
Data Sheet 4- Evolution 6000 Thermal Imaging Camera…
2 lithium ion batteries
retractable lanyard
carabineer
2 power adapters
To Turn TIC press (green) power button on the handle..
DS-4
- within 5 seconds , TIC carries out SELFTEST
- 4 battery/power LED’s will illuminate (battery fully charged)
- verify TIC is functioning by viewing your hand or another member
Turn OFF- (green button)
press and hold power button for 4 seconds
-when display and battery/power led’s shut off, release green button, TIC is now off
HIGH HEAT/LOW SENSITIVITY MODE
TIC is in HIGH HEAT (low sensitivity) mode
-indicated by GREEN TRIANGLE in upper left hand corner
Internal electronics overheat indicator ..
–internal operating systems electronics approach MAXIMU recommend operating temperature limits
indicated by RED TRIANGLE
-FLASHING RED–OVERHEAT
-OFF (NOT LIT)-NORMAL
TEMPERATURE measurement zone..
- -approximate temp of solid object
- indicated by green square in center of display, object will be targeted by the zone, which will measure approx temp of solid object and DISPLAY IT ON THE NUMERIC TEMPERATURE INDICATOR (bottom right)
Heat Color Reference Bar Scale..
-right vertical section of display
transparent-shall appear at the bottom of the heat color reference bar before color indication begins and has n no temp. relevance
YELLOW- at the LOW end of the heat color reference bar
ORANGE- middle of the HEAT color reference bar
-RED- at the HIGH end of the heat color reference bar
HEAT COLOR reference bar and scale:
LOW HEAT (high sensitivity) 291-302-YELLOW 302-311 (ORANGE) 311-320 -RED IF COLORS YELLOW- RED appear in less than 32% of viewed mode...EV6000 will remain in low heat (high sensitivity )
if colors yellow -red appear in more than 32% of the display , camera will shif into HIGH HEAT (low sensitivity )
..camera wil shutter and HIGH HEAT (green triangle ) APPEARS IN UPPER LEFT CORNER..heat bar and scale expand and green triangle will appear one the scale to indicate heat change
HIGH HEAT MODE:
1000-1047 - YELLOW
1047-1090 - ORANGE
1090-1100–RED…RED , APPROACHING 1100 DEGREES
Numeric temp indicator will display approx number value of temp in LOW HEAT AND HIGH HEAT MODE.
TIC may not display approx solid surface temp. greater than 320 F to 351 in the low heat - normal mode and high heat mode
-temp measurement does NOT provide atmospheric or air temperature readings…should not be relied upon to make tactical interior structural firefighting decisions
Each LED (battery/power ) represents 40-45 minutes of operational time.
4 green --75-100 % 3 green - 50-75 3 yellow - 25-50 1 red - 0-25 1 RED FLASHING -5 minutes or less (if RED LED flashes 3 times and turns off, battery is too low to operate
Shutter indicator..
green square just below upper left hand corner
- display for 3 seconds before and during shutter
- shutter frequently and when shifting modes
- shutters more frequently with greater heat load
battery - 1 lithium ion battery in handle
operating time 3-3.5 hours at nominal temps (72 degrees)
- operating time greatly reduced in hotter and colder atmospheres
- battery rotation provides optimal battery performance
- multi use charger - 2 batteries
- fully depleted battery charges in 4 hours
green -complete
red-charging
flashing red- error
