Klein Tools IR2000 - Manual (Page 6)

Emissivity
Emissivity is the relative ability of a surface to emit energy by radition. Each
type of surface (metal, brick, wood, etc.) has a different emissivity level
which must be accounted for when taking a measurement with an infrared
thermometer.
The IR2000 has a variable emissivity from 0.10 to 1.00 which allows
accurate measurement of most types of materials. Shiny bright surfaces
(i.e. chrome, new copper, white boards) have a much lower emissivity
than flat black materials. The emissivity of the IR2000 should be set
manually according to the chart below in order to obtain the most accurate
measurements. The chart is for guidance only, as the emissivity of objects
varies depending on surface finish, measurement wavelength, field of view,
temperature, and the shape of the object.
material Emissivity
Asphalt 0.93
Red Brick 0.93
Gray Brick 0.75
Porcelain Ceramic 0.92
Fired Clay 0.91
Rough Concrete 0.94
Cotton Cloth 0.77
Smooth Glass 0.92-0.94
Granite 0.45
Gravel 0.28
Smooth Ice 0.97
Smooth White Marble 0.56
Black Paint 0.96
Hard Rubber 0.94
Wood 0.80-0.90
Matte Copper 0.22
Commercial Sheet Aluminum 0.09
Cold Rolled Steel 0.75-0.85
Find a comprehensive list of emissivity values at
www.kleintools.com/content/instructions
AccurAcy
Ambient
temperature
target
temperature Accuracy
77°F 59~95°F(15~35°C) ±1.8°F (1.0°C)
68~79°F (20~26°C) 32~1022°F
(0~550°C)
±4°F (2°C)
68~79°F (20~26°C) -76~32°F
(-60~0°C)
±(4°F+0.1 degree/degree)
±(2°C+0.05 degree/degree)
ENGLisH