DeWalt DCT416 Instruction Manual page 14

3. Press the select button (I) to confirm selection.
4. Press the forward (J) or back (H) arrow to scroll through saved
images.
5. Press the select button (I) to go to the delete sub-menu.
6. Press the forward (J) or back (H) arrow to highlight save to SD
card or delete.
7. Press the select button (I) to confirm selection.
8. After completion of save or delete, the imaging thermometer will
automatically return to the next sequential image.
Emissivity
Emissivity describes the energy-emitting characteristics of materials.
Most organic materials and painted or oxidized surfaces have an
emissivity of about 0.95 which is the default setting. It is recommended
to compensate for inaccurate readings that may result from measuring
materials with low emissivity values such as shiny metal surfaces. Cover
these surfaces with masking tape or flat black paint (< 148 ˚C/300 ˚F)
and use the default (0.95) setting. Allow time for the tape or paint
to reach the same temperature as the surface beneath it and then
measure the temperature of the tape or painted surface.
If you cannot paint or use tape, then you can compensate your
measurements with the emissivity selector. Even with the adjustable
emissivity, it can be difficult to get a completely accurate infrared
measurement of a target with a shiny or metallic surface. Experimentation
may be required to benchmark temperatures, and experience will help
you choose the best setting for specific measurements.
The imaging thermometer has emissivity adjustable from 0.1 to 1.0
in increments of 0.01. Refer to the Nominal Emissivity Table in
this manual. The reference to emissivity settings in the table are
suggestions for typical situations and your particular situation may
differ.
NOTE: Calibration of this product was performed at 0.95 emissivity.
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