Use And Operation; Using Batteries - Bullard T4X Manual De Instrucciones

Use and Operation

Thermal Imaging is not a technology designed to replace current firefighting tactics. Rather, it is a tool
that allows the firefighter to be more effective and to make better decisions.
Power
To turn on your Bullard T4X Thermal Imager, depress and release
the large, red power button under the LCD display (Figure 2).
Upon pressing the power button the thermal imager will display
the Bullard logo and initiate a calibration sequence. The thermal
image will appear within five seconds. To turn off power, depress
and hold the power button until the red "power" icon on
the top left of the display activates and changes from red
to green. When the green power icon is shown, release the button, and the unit will power off.
NOTE
You will periodically observe a momentary freeze in the image. This is normal and is a function
of the self-calibration shutter. The shutter will activate periodically, more frequently in hot
environments.
Battery Status Indicator
A battery status indicator, located above the display screen indicates the remaining battery charge for
the T4X. A full charge is indicated by the leftmost LED illuminated in green. As the battery depletes,
subsequent green LEDs will light. A yellow LED indicator will light when the battery has approximately
50% charge remaining and a red LED will light to indicate that the battery has approximately 25% charge
remaining. With five minutes remaining, the red LED light will flash. This can vary if an attached handle
with DVR and/or transmitter is running.
Temperature Measurement
The T4X is equipped with temperature measurement capability. The right side of the display will show
a bar graph or Relative Heat Indicator (RHI). The RHI will indicate the approximate temperature of the
object viewed within the temperature measurement zone icon, the green square in the middle of the
display. Additionally, a numeric temperature indicator below the RHI bar will display the approximate
temperature in a numeric value. The accuracy of the indicators is dependent on numerous factors
including the distance from the object being viewed and its emissivity, which is the object's ability to
radiate heat. Units are calibrated with a preset emissivity corresponding with normal construction
materials. Objects with emissivities that vary greatly from this, such as metals and shiny objects, will
reduce the accuracy of the temperature indication. Additionally, temperature measurement accuracy
decreases as the distance from the object in the temperature measurement zone icon increases.
NOTE
The RHI and numeric temperature indicators provide a quick reference to compare objects of
similar emissivities to serve as a guide to pinpoint intense heat sources. Due to the inherent
issues with accuracy, use this feature with caution and verify indicated heat levels through
traditional means whenever possible.
Super Red Hot Feature
The T4X features Super Red Hot high heat colorization. With the Super Red Hot feature, heat levels
are identified by various color hues. Starting at approximately 500 degrees F (260 degrees C), heated
objects are tinted yellow and gradually transition to orange at 800 degrees F (427 degrees C) and then
solid red at approximately 1000 degrees F (538 degrees C). The Super Red Hot feature identifies specific
heat layers alerting firefighters to areas of intense heat. This feature provides an
enhanced visual awareness of the hottest objects in a scene.
Electronic Thermal Throttle®
Your T4X Thermal Imager is equipped with Electronic Thermal Throttle (ETT),
a highly useful and unique feature available on Bullard firefighting Thermal
Imagers. The ETT is ideal for pinpointing hot spots during overhaul,
searching for overheated electrical equipment, or clarifying objects in
ambient temperature situations. To activate the ETT option, locate
the two black buttons on top of the unit. Press the down button
(the button closer to the front of the imager) to activate the ETT
(Figure 3). The ETT will automatically sense the hottest area in
the scene and color it blue. Continuing to press the down button will further engage ETT and will color
more of the scene blue, eventually coloring even the coolest objects blue. As the throttle engages more
of the scene, the blue will become lighter in hue to help differentiate objects in the scene.
As you cycle through the scene, you'll see the symbol "TT" and a corresponding number in the bottom
left hand corner of the display. The "TT" indicates "Thermal Throttle" mode. The number (00-99) is
a point of reference to indicate the level of Thermal Throttle engagement; by itself it has no specific
meaning.
WARNING
Power Button
Zoom Button
Figure 3
www.bullard.com
NOTE
If ETT is engaged during the first minute of start-up, you will see a yellow "CAL" indicator on the
bottom right corner of the screen. During this start-up period, ETT is calibrating, and you may see
variance in the blue color overlay.
Most of the benefits of the ETT are accomplished with the first few presses of the button. To lessen the
amount of blue in a scene, press the up button (the button closer to the back of the imager toward the
display). To deactivate the ETT, hold both buttons simultaneously for one-half second or turn off the T4X
and turn it back on.
NOTE
The Electronic Thermal Throttle takes approximately ten seconds to calibrate from the initial start-
up of the thermal imager. During this short period, the ETT will not engage. If ETT is engaged
during the first minute of start-up, you will see a yellow "CAL" indicator on the bottom of the
Figure 2
screen. During this start-up period, ETT is calibrating and you may see variance in the blue color
overlay.
Digital Zoom Feature
The T4X enables magnification of distant objects at both 2X and 4X zoom. Push the black "Z" button,
located next to the power button under the LCD display to enable 2X zoom (Figure 2). Push the black
"Z" button again to activate 4X zoom. Push the black "Z" button again to deactivate zoom and return to
normal viewing. The Digital Zoom feature also works seamlessly with Electronic Thermal Throttle and
Super Red Hot. If the Digital Zoom feature is activated, the zoom level will be displayed on the left side
of the display.

Using Batteries

Loading/Unloading the Battery
To install a battery, slide the battery into the groove on the bottom of the unit
and ensure that the battery is properly seated (Figure 4). To remove a
battery, depress both battery locking buttons simultaneously and slide
the battery out of the unit. Since it can only be loaded one way, the
battery is easily replaced in the dark.
Using the Battery Charger
Connect the charging base to an appropriate power supply
via the cables included. To charge a battery, insert the
battery into the charger base so that the metal contacts on
the battery are aligned with the metal contacts in the charger base (Figure 5).
A steady red light will indicate that the battery is charging, while a steady green
light will indicate a full charge. The system will detect the full charge and will not
overcharge the battery. A completely drained battery takes up to three hours
to fully recharge.
NOTE
If you do not see the red LED illuminate when you place a battery
into the charger, the battery is not charging.
As with all batteries, your Bullard rechargeable battery will experience
a slow drain of its charge during storage. The amount of drain varies widely based on storage
conditions. To ensure adequate battery life, charge each of your batteries every two weeks or, for
best performance, keep your T4X and spare battery charged in your vehicle in the T3Powerhouse
truck mount charger accessory (part number: POWERHOUSE). If you are using a Powerhouse
charger, follow the instructions contained in the accompanying manual.
NOTE
Fully charged NiMH batteries will provide a run time of more than 4.5 hours to a T4X. This run
time will be less in extreme heat or extreme cold conditions and/or if the transmitter and/or DVR
is in use. To extend the potential lifespan of your batteries, fully drain and recharge each battery
monthly. To help extend the life of the rechargeable batteries and prevent unexpected instances
of uncharged batteries, develop a clear formalized plan for maintaining, charging, and replacing
your batteries.
Bullard provides an optional AA alkaline battery case which can be used as an alternative to the
standard 10 V NiMH rechargeable batteries. The AA alkaline battery (part number ALKPACK)
case requires eight AA alkaline batteries. Once the batteries are installed, the case loads into
the unit in the same manner as the standard NiMH battery. Due to the unique way that alkaline
batteries disperse power to the unit, the LED indicators will report battery levels that are not
necessarily indicative of the battery's actual remaining charge. Fully charged AA Alkaline batteries
will typically operate a Bullard T4X Thermal Imager for two hours. Do not insert the AA Alkaline
battery case into any Bullard battery chargers, including the Powerhouse. To ensure proper
function with the alkaline battery case, do not substitute other battery types, such as lithium-
based technology.
Figure 4
Battery Locking Buttons
Figure 5