Sonel DIT-130 Manual De Uso página 36


Reminders
① Not recommended for use in measuring shiny or polished
metal surfaces (stainless steel, aluminum, etc.). See Emissivi-
ty.
② The unit cannot measure through transparent surfaces such
as glass. It will measure the surface temperature of the glass
instead.
③ Steam, dust, smoke, etc., Can prevent accurate measure-
ment by obstructing the unit's optics.

Emissivity
Emissivity is a term used to describe the energy-emitting char-
acteristics of materials.
Most (90% of typical applications) organic materials and painted
or oxidized surfaces have an emissivity of 0,95 (pre-set in the unit).
Inaccurate readings will result from measuring shiny or polished
metal surfaces.
To compensate, cove the surface to be measured with masking
tape or flat black paint. Allow time for the tape to reach the same
temperature as the material underneath it. Measure the tempera-
ture of the tape or painted surface.
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DIT-130 – USER MANUAL