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
is used for aiming purposes only.
z
re the target is at
e spot size.
z
a measured by the unit becomes
z
ith an up and down
ou locate hot spot.
z
①
es ( stainless steel, aluminum,
②
laser, the laser
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 su
least twice as large as th
Distance & Spot Size
As the distance (D) from the object increases, the spot
size (S) of the are
larger. See:
Fig: 1
.
Locating a hot Spot
To find a hot spot aim the thermometer outside the area
of interest, then scan across w
motion until y
Reminders
Not recommended for use in measuring shiny or
polished metal surfac
etc.).See
Emissivity
The unit cannot measure through transparent surfaces
13
