Infrared Thermometer
Product Operation
13
Field of View
For accurate measurements, make sure that the target is larger than the Product
spot size. The smaller the target, the closer you should be to it (see Figure 6).
Yes
No
hdp06.eps
Figure 6. Field of View
Emissivity
Emissivity describes the energy-emitting characteristics of materials. Most organic
materials and painted or oxidized surfaces have an emissivity of approximately
0.95, the default setting for the Product.
To compensate for inaccurate readings that may result from measuring shiny metal
surfaces, you can cover the surface to be measured with electrical tape or flat black
paint (<148
°
C/300
°
F) with emissivity set to 0.95. Allow time for the tape or paint to
reach the same temperature as the surface beneath it. Measure the temperature of
the tape or painted surface.
If you cannot paint or use tape, then you can improve the accuracy of your
measurements by either numerically adjusting emissivity or by using the Emissivity
Menu to access a table of some common materials. The Product has numerically-
adjustable emissivity from 0.10 to 1.00 that can be used in conjunction with the
emissivity in Table 3. Also, the Product has a built-in table of the most common
materials that can be set from the Emissivity menu. The built-in values are indicated
in Table 3.
HOLD
The display retains its last infrared measurement for twenty seconds when the
trigger is released, when
HOLD
is shown on the display. With the probe inserted,
the contact thermometer remains on. To freeze the infrared temperature when a
probe is not inserted, release the trigger until
HOLD
shows on the display.
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1.877.766.5412
www.
MyFlukeStore
.com
