Product Manual

Display Menus

Measure Menu

3-33

Note

The thermal imager works with a wavelength

range of 7.5

m to 14

m. The influence of the

atmosphere on the measurement result can be

neglected during the majority of the

measurements in this range – therefore, the

transmission is set to 1.00 at the factory. Only in

the event of measurements over longer

distances (over approx. 100 m) and/or through

additional window materials, gases, and fog, will

the transmission decrease and the path

temperature, the relative humidity and/or

transmission (dew), and distance should be

defined and taken into consideration.

The "Material" option provides an alphabetically sorted

collection of the emissivity of different materials, within

the framework of which the different surface conditions

are partially taken into consideration. When material and

condition (status) are selected, the emissivity of the

selected material is accepted as global emissivity.

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Note

The factory setting of the emissivity is 1.00.

Therefore, it is assumed that 100 % of the

measured radiation is emitted by the measuring

object. The measuring object corresponds to the

"ideal black-body emitter" and is non-reflective.