Emissivity
Testboy
®
TV 325 39
ENGLISH
Emissivity
The emissivity is a value that is used to describe a material's energy
radiation characteristic. The higher this value, the higher the ability of the
material is to send out radiation. Many organic materials and surfaces have
emissivity of approximately 0.95. Attached is a list of the emissivity values of
several materials. Metallic surfaces or shiny materials have low emissivity.
Therefore, the Testboy
®
TV 325 is fitted with an emissivity-setting feature.
Despite this adjustable emissivity setting feature, we do not recommend
taking measurements of shiny surfaces such as stainless steel. You will get
more precise measured values if you blacken or tape over the surface to be
measured. Measurements cannot be made through transparent surfaces,
like through glass for example. You will actually measure the surface
temperature of the glass instead.
Setting the emissivity
Press the MODE key until "IEI" appears in the lower display row. The
required emissivity value can now be set using the up and down keys.
Press the MODE key to go back to the normal measuring mode.
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