4
Measuring the Temperature
●
Do not hold the temperature sensor (1) into the
sun or other strong light sources (e. g. flood-
lights). The sensor may be damaged.
●
Do not hold the temperature sensor directly
onto the object to be measured, and protect it
against impurities as well as scratches.
1) Hold the temperature sensor (1) in the direc-
tion of the object. The distance towards the
object should not exceed 2 m.
2) Keep the red button “MEAS” (6) pressed for
approx. 1 second. The display (3) shows an
indication. If not, four 1.5 V batteries (size
AAA) must be inserted. If the symbol
is
displayed, replace the batteries – see chapter
6 “Replacing of Batteries”.
3) For better locating the object, the laser beam
can be switched on with button
(5). The
GB
11
Material
Infrared
Emissivity
Material
Infrared
Emissivity
Asphalt
0,90 – 0,98
Clothes, black
0,98
Concrete
0,94
Skin, human
0,98
Cement
0,96
Sweat
0,75 – 0,80
Sand
0,90
Powdered charcoal 0,96
Soil
0,92 – 0,96
Lacquer
0,80 – 0,95
Water
0,92 – 0,96
Mat lacquer
0,97
Ice
0,96 – 0,98
Rubber, black
0,94
Snow
0,83
Plastic
0,85 – 0,95
Glass
0,90 – 0,95
Tin
0,90
Ceramics
0,90 – 0,94
Chromium
0,81
Marble
0,94
Copper oxide
0,78
Gypsum
0,80 – 0,90
Iron oxide
0,78 – 0,82
Mortar
0,89 – 0,91
Paper
0,70 – 0,94
Brick, red
0,93 – 0,96
Texiles
0,90