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Voyager III Firefighter Mode and Tracking
Caution: A number of factors can affect the accuracy of the Voyager III
temperature reading such as the distance to the target, humidity, and other
atmospheric conditions. While the Firefighter Mode features of your Voyager III
system provide an important reference point in understanding temperatures in a
target environment, you should never rely on camera data as your primary
source of information. The Voyager III system should always be used in
conjunction with other appropriate tools.
Enabling firefighter mode modifies a number of aspects of the video display. The
following figure uses numbers to annotate four significant differences.
Upper isotherm
Lower isotherm
All icons other than Scene, Azimuth, and Elevation are removed from the
1.
screen.
A vertical temperature scale displays along the left edge of the video display
2.
with a range of 0 to 150 degrees centigrade. The scale is divided into three
sections distinguished by colors: green, yellow, and red. The points on the
scale where the colors change are determined by the values you specify for
upper and lower isotherm values:
• Upper isotherm marks the change between red and yellow.
• Lower isotherm marks the change between yellow and green.
A spot meter displays in the center of the video display indicating the target for
3.
the temperature reading. This target is set by the camera and cannot be
changed.
A pointer on the left of the temperature scale indicates the real-time
4.
temperature measured by the Voyager III camera at the spot meter. The
temperature in degrees displays next to the pointer. The system continually
updates temperature readings at a rate of 2 times per second and updates the
spot meter information at the same rate.
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432-0005-00-10 Rev 100 — Voyager III Operator's Manual
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