General IRTC40 Manual Del Usuario página 5

display indication of LOW, targets hotter
than the reference temperature ± T
produce fast beeping and a display
indication of HIGH, and targets within the
"Goldilocks" zone—not too hot and not too
cold—yield silence and a display indication
of NORMAL.
The IRTC40 automatically enters
conventional (non-scanning) IRT mode
when you squeeze and hold the trigger for
three seconds. To enter scanning mode, you
set a reference temperature and a "setpoint
bandwidth" representing twice the value of
T. In practice, what most professionals use
as a reference is something they consider
at "normal" temperature—an interior wall
of a room, for example. Setting the IRTC40's
reference temperature to this value requires
that you point the gun at the reference
object and press a button on the front
panel. Doing so causes that temperature to
appear at the right of the term REF on the
LCD.
In scanning mode, the setpoint bandwidth
can be set to any of three values—
1°F (0.5°C), 5°F (3°C) or 10°F (5.5°C).
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