Fluke TiX520, Руководство пользователя

Страница: 32 / 56

TiX520, TiX560
Users Manual
22
Table 7. Level and Span Settings
1
2
3
hwj011.eps
Item Description

Level

Span

Total Imager Range
To adjust the temperature span:
1. Push

or the touch screen to increase or widen the
temperature span.
2. Push

or the touch screen to decrease or narrow the
temperature span.
While you adjust the manual span, the scale along the
right side of the display shows the thermal span increasing
or decreasing in size.
Emissivity Adjustment
The correct emissivity values are important for the Imager
to make the most accurate temperature measurement
calculations. 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 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)