LaserLiner ThermoSpot Plus Mode D'emploi page 8

5
Setting the emission coefficient
A built-in sensor head detects the material/surface-specific infrared rays emitted by every object. The level of
these emissions is determined by the material's emission coefficient (0.01 to 1.00). After switching on for the
first time, the device is preset to an emissivity coefficient of 0.95, which is suitable for most organic materials
as well as plastics, ceramics, wood, rubber and stone. For materials with different emissivity coefficients,
please refer to the table under point 6.
Unknown emission coefficient:
Apply masking tape or black matt paint to the surface of the area whose temperature you wish to measure.
Wait until the tape/paint has heated up. The temperature of the surface can then be measured with an
emission coefficient of 0.95.
!
The emissivity coefficient last selected is set after the device is switched on. Check the emissivity
coefficient setting before each measurement.
6
Table of emission coefficients
Alloy A3003
Oxidised
Roughened
Aluminium
Oxidised
Polished
Brass
Polished
Oxidised
Copper
Oxidised
Elect. terminal strips
Haynes
Metal alloy
Inconel
Oxidised
Sandblasted
Electropolished
08
GB
...
E 0.01...1.00
Iron
0.3 Oxidised
0.1 - 0.3 With rust
With red rust
Iron, cast
0.2 - 0.4
0.04 - 0.06 Oxidised
Non-oxidised
Molten mass
0.3
0.5 Iron, forged
Matt
0.4 - 0.8 Lead
0.6 Rough
Oxidised
Molybdenum
0.3 - 0.8
Oxidised
0.7 - 0.95 Nickel
0.3 - 0.6 Oxidised
0.15
Button pressed briefly: Value +0.01
Keep button pressed:
Value runs through 0.01 ... 1.00
Metals
Platinum
0.5 - 0.9 Black
0.5 - 0.7
Steel
0.61 - 0.85
Cold rolled
Ground plate
0.6 - 0.95 Polished plate
0.2 Alloy (8% nickel,
0.2 - 0.3 18% chromium)
Galvanised
Oxidised
0.9
Heavily oxidised
Freshly rolled
0.4
Rough, flat surface
0.2 - 0.6
Rusty, red
Sheet, nickel plated
Sheet, rolled
0.2 - 0.6
Zinc
Oxidised
0.2 - 0.6
0.9
0.7 - 0.9
0.4 - 0.6
0.1
0.35
0.28
0.80
0.88
0.24
0.95 - 0.98
0.69
0.11
0.56
0.1