Fotric 340M Series, User Manual

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material emissivity table or unknown, please contact Fotric on how to set it.
4. Click on other areas of the thermal image screen, or click the back button to
complete the setting.
5. If the emissivity of the unknown material is not recorded in the material
emissivity table in the end of this manual, please refer to the text description
of how to set the emissivity of thermal imager in this manual for operation.
For partial emissivity, please refer to Section 4.8.5 ROI partial emissivity setting.
4.6.2 Setting Reflection Temperature
The reflection temperature set is used to compensate for the radiation from the
surroundings reflected by the measured object. The property of the object is
called “reflectivity”.
Note: If the emissivity is low and the ambient temperature is much lower than
target, it is important to set this parameter correctly for accurate temperature
measurement.