Fluke Ti20 - Manual (Page 37)

Basic Operation
Reflected Temperature Compensation
2
2-13
Reflected Temperature Compensation
Targets that have low emissivities will reflect energy from nearby objects. This additional
reflected energy is added to target’s own emitted energy and may result in inaccurate
readings. In some situations objects near the target (machines, furnaces, or other heat
sources) have a temperature much higher than that of the target. In these situations it is
necessary to compensate for the reflected energy from those objects. The concept of
reflected temperature compensation is illustrated in Figure 2-5.
Note
The Reflected Temperature Compensation (RTC) feature is disabled when
the emissivity is set to 1.00.
Reflected Energy
Emitted Energy
dag006f.eps
Figure 2-5. Reflected Temperature Compensation