Fluke , 9 Hz thermography camera, , 80 x 80 pix bolometer matrix 4484843 사용자 설명서
제품 코드
4484843
Thermal
Imagers
Menus
25
Emissivity Adjustment
The correct emissivity values are important for you to make the most accurate
temperature measurements. Emissivity of a surface can have a large effect on
the apparent temperatures that the Imager observes. Understanding the
emissivity of the surface being inspected can, but may not always, allow you to
obtain more accurate temperature measurements.
temperature measurements. Emissivity of a surface can have a large effect on
the apparent temperatures that the Imager observes. Understanding the
emissivity of the surface being inspected can, but may not always, allow you to
obtain more accurate temperature measurements.
If you set a value that is <0.60, shows on the Imager display with this
caution:
Caution:
Emissivity <0.6
(see Manual)
Note
Surfaces with an emissivity of
<0.60 make reliable and consistent
determination of actual temperatures problematic. The lower the
emissivity, the more potential error is associated with the Imager's
temperature measurement calculations. This is also true even when
adjustments to the emissivity and reflected background adjustments
are performed properly.
emissivity, the more potential error is associated with the Imager's
temperature measurement calculations. This is also true even when
adjustments to the emissivity and reflected background adjustments
are performed properly.
Emissivity is set directly as a value or from a list of emissivity values for some
common materials.
common materials.
Note
If the Display is set to Display All, you see the information about
current emissivity as
current emissivity as
ε = x.xx.
Adjust by Number
To set the emissivity value:
1. Push .
2. Push / to highlight Measurement.
3. Push or to view the menu.
4. Push / to highlight Emissivity.