8temperature of an object. The unit’s optics sense
emitted, reflected, and transmitted energy, which is
collected and focused onto a detector. The unit’s
electronics translate the information into a temperature
reading, which is display on the unit. In units with a'
laser, the laser is used for aiming purposes only.
Field of View
Make sure that the target is larger than the unit’s spot
size. The smaller the target, the closer you should be to
it. When accuracy is critical, make sure the target is at
least twice as large as the spot size.
Distance & Spot Size
As the distance (D) from the object increases, the spot
size (S) of the area measured by the unit becomes
larger. See: Fig: 1.
Locating a Hot Spot
of interest, then scan across with an up and down
motion until you locate hot spot.
6. NOTES:
How it Works
Infrared thermometers measure the surface
To find a hot spot aim the thermometer outside the area
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