Application Note
From the Fluke Digital Library @ www.fluke.com/library
Application Note
How hot? Use the spot.
Temperature is the second most common measurement in
the world (the first is time). For something that is measured
so often, wouldn’t it be great to have a thermometer that’s
as easy to carry and as fast to read as your wristwatch?
Fluke’s family of infrared (IR)
thermometers gives you speed
and convenience. Point. Squeeze.
Read the results. It’s quick and
easy, and helps you get your job
done faster.
In addition, Fluke’s newest
infrared thermometer adds
another element—improved
targeting for increased accuracy.
The Fluke 62 MAX+ provides
two targeting lasers to help you
better see “the spot.” To better
understand how the 62 MAX+
will help you, let’s take a look at
what the spot means.
For anyone who uses an IR
thermometer, understanding
the measurement spot is key
to getting accurate measure-
ments. Think about using the
spot in the same way you see
things with your eyes. If you’re
up close to an object, you can
see only the things directly in
front of you. As you move farther
back, your field of view expands
and you see a much wider
perspective.
The formal name for this is
“distance to spot ratio.” If your
thermometer has a 10:1 distance
to spot ratio, and you are 10
inches away from your target,
you will measure the tempera-
ture of a one-inch circle. If you
are 10 feet away, your measure-
ment spot will be a one-foot
circle.


