FLIR i3 User Manual

μm. Thus, a very hot star such as Sirius (11 000 K), emitting bluish-white light, radiates
with the peak of spectral radiant emittance occurring within the invisible ultraviolet
spectrum, at wavelength 0.27 μm.
10399403;a1
Figure 22.5 Wilhelm Wien (1864–1928)
The sun (approx. 6 000 K) emits yellow light, peaking at about 0.5 μm in the middle
of the visible light spectrum.
At room temperature (300 K) the peak of radiant emittance lies at 9.7 μm, in the far
infrared, while at the temperature of liquid nitrogen (77 K) the maximum of the almost
insignificant amount of radiant emittance occurs at 38 μm, in the extreme infrared
wavelengths.
Publ. No. T559580 Rev. a486 – ENGLISH (EN) – November 17, 2010 137
22 – Theory of thermography

FLIR i3 Specifications

General

Infrared Resolution	60 x 60 pixels
Thermal Sensitivity	< 0.15°C
Temperature Range	-20°C to +250°C
Field of View	12.5° x 12.5°
Focus	Fixed
Battery Life	5 hours
Operating Temperature	-10°C to +50°C
Storage Temperature	-40°C to +70°C
Display	2.8 in color LCD
Weight	0.34 kg