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Numeric Temperature Indicator
Displays next to the Temperature Bar and indicates the measured temperature of
an object in the Temperature Measurement Zone (center of the display).
NOTE:
The indicators provide a quick reference to compare objects of similar
emissivity in order to assist with identification of intense heat sources. Due to
the inherent issues with accuracy, use these features with caution and verify
indicated heat levels through traditional means whenever possible.
Super Red Hot (SRH) Colorization
The Bullard NXT utilizes easy-to-use Super Red Hot (SRH) colorization which
displays heat levels in yellow, orange, and red hues. This feature identifies specific
heat layers, thus alerting firefighters to areas of intense heat through visual
awareness of the hottest objects in a scene. The SRH feature automatically adds
colorization at temperatures above 500° F (260º C).
SRH colorization engages automatically at temperatures 500° F (260º C) or greater.
Temperatures below 500° F (260° C) remain grayscale (white hot polarity). Objects
between 500° F (260° C) and 799° F (426° C) appear yellow; objects 800° F
(427° C) to 999° F (537° C) appear orange; objects 1000° F (538° C) or hotter
appear red. The SRH overlay remains semi-transparent, allowing the scene detail
such as thermal flows to remain visible under the SRH colorization.
SRH has a Heat Color Reference Bar adjacent to the Temperature Bar. The
temperature is illustrated by the filled height of the Temperature Bar and by the
Numeric Temperature Indicator below the bar. The color reference bar is a visual
indicator to quickly allow the user to determine the meaning of the color displayed
on the screen. For example, if the Temperature Measurement Zone is pointed to an
object at 1000° F (538º C) the bar fills to the mark located above the 900º F
(482º C).
TI BASIC PLUS Mode Indicator (Optional Features)
TI BASIC PLUS mode provides access to additional optional features of the
Bullard NXT, including Electronic Thermal Throttle (ETT), digital zoom (2X / 4X), and
USB connection for downloading recorded video files, dependent on your unit's
configuration.
To activate TI BASIC PLUS mode, depress the left button for approximately three (3)
seconds. The TI BASIC PLUS mode is indicated by the "plus sign" (+) transparent
square box in the lower left of the display. In this mode, icons associated with
features appear in the center left of the display (Additional Information Area).
Depressing the Green power button always reverts to TI BASIC Mode.
Electronic Thermal Throttle® (ETT)
As an optional feature, your Bullard NXT may be equipped with the Electronic
Thermal Throttle (ETT), which is a hot-spot indicator ideal for locating hot spots
during overhaul and size-up, searching for overheated electrical equipment, finding
victims, and clarifying objects in low ambient temperature (non-fire) situations.
When engaged, ETT senses the hottest area in the scene and colors it blue. If
ETT is engaged while viewing an object /scene and most of the area is the same
temperature, a greater amount of the scene is colored blue.
To engage ETT, enter TI BASIC PLUS mode by depressing the left button for
approximately three (3) seconds. After the PLUS mode indicator is illuminated in
the lower left of the display, then press the left button again to engage ETT. "TT**"
will appear on the screen. As the algorithm engages more of the scene, the blue
will become lighter in hue to help differentiate objects in the scene. Cycling through
the scene and sensitivity adjustment displays the "TT" symbol and a corresponding
number in the upper left hand corner of the display. The "TT" indicates "Thermal
Throttle" mode. The number (0-99) is a reference point indicating the relative level
of ETT engagement; by itself it has no specific meaning. Most of the benefits of the
ETT are accomplished with the first few presses of the button. While engaged, the
ETT sensitivity is adjusted by the left and right buttons.
Digital Zoom
As an optional feature, your Bullard NXT may be equipped with 2X and 4X digital
zoom capability. This feature is available in TI BASIC PLUS mode only. If present
in your unit's configuration, to enable this functionality, depress the left button for
approximately three (3) seconds. After the PLUS mode indicator is illuminated in the
lower left of the display, then depress both buttons again for approximately three
(3) seconds to engage the zoom function. A second long-press of both buttons will
change from 2X to 4X zoom, and a third long-press of both buttons reverts to the
Imager's standard view with no zoom.
SceneCatcher Digital Video Recorder (DVR)
As an optional feature, your Bullard NXT may be equipped with a SceneCatcher
DVR.
If so equipped, the DVR is accessible from within TI BASIC or TI BASIC PLUS
Mode. To activate the DVR in either mode, press and hold the right button for
approximately three (3) seconds, until a red circle appears on the left side of the
display. This indicates recording to the unit's internal memory. To deactivate the
DVR, press and hold the right button until the red circle disappears. To download
recorded video, connect the imager to a computer via the Micro USB port on the
bottom of the imager. When connected in this manner and powered ON, the internal
Secure Digital (SD) card will behave as any other USB mass storage device (i.e.
flash key, hard drive, etc).
NOTE:
Upon initial imager startup, the SceneCatcher DVR will not be available for 8
seconds while it initializes. During this time, the red dot will be displayed with
an "X" crossing it.
The SceneCatcher DVR has 8 GB of solid state memory, which will store more than
5.5 hours of video. When storage is full, the unit automatically overwrites the oldest
file available. Video files are recorded for a maximum of 3 minutes each. That is, if a
video being recorded is longer than 3 minutes, it will be stored in 3-minute segment
files. To make it easier to manage multiple videos from different Thermal Imagers,
the video file names have the following format: AANNNNNN.avi, where AA is an
alphabetic combination and NNNNNN is a numeric pattern.
Charging the Battery
Your Bullard NXT's battery can be charged with one of three charging systems: the
included Wireless Desktop Charger, the included USB Wall Charger, or the optional
Wireless Truck Mount Charger. To charge a battery in the Desktop or Truck Mount
chargers, place the imager on the charger. When seated correctly, a BLUE LED
on the right side of the charger indicates a connection with the imager. When the
connection has been verified and the battery is charging, the Bullard NXT's power
button LED will pulse RED. When fully charged, the same LED will change to steady
GREEN. Note: more detailed information is available in the user's manual for these
charging devices.
To charge with the USB Wall Charger, open the USB cover located on the rubber
boot at the bottom of the display side of the imager. Plug the USB power cord into a
dedicated wall outlet using the included AC adapter. When the connection has been
verified and the battery is charging, the Bullard NXT's power button LED will pulse
RED. When fully charged, the same LED will change to steady GREEN.
With any charging system, if the Bullard NXT's internal control software determines
that internal temperatures are too high or too low for battery charging, then the
power button will flash YELLOW until the imager's internal temperature stabilizes
to a range appropriate for charging. This is normal operation as the battery pack
must be at moderate temperatures to support charging. Upon and while charging,
the imager's power button pulses RED, and when fully charged, the LED displays
solid GREEN.
NOTE:
If your Bullard NXT has been stored in extremely cold temperatures for
an extended period of time, especially with a depleted battery, it may
take approximately one minute to start up. To avoid this behavior, Bullard
recommends leaving the unit attached to a charging system when not in use.
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Bullard NXT Thermal Imager
User Manual
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