UNI-T UT305A, Руководство пользователя, Страница: 13 / 26

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Emissivity
Emissivity describes the energy-emitting characteristics
of materials. Most organic materials and painted or
oxidized surfaces have an emissivity of about 0.95.
If possible, to compensate for inaccurate readings that
may result from measuring shiny metal surfaces, cover
the surface to be measured with masking tape or flat
black paint (<150 / 302 ) and use the high emissivity
setting. Allow time for the tape or paint to reach the
same temperatures as the surface beneath it. Measure
the temperature of the tape or painted surface.
If you cannot use paint or use tape, then you could
improve the accuracy of your measurements with the
emissivity selector. Even with emissivity selector, it can
be difficult to get a completely accurate infrared
measurement of a target with a shiny or metallic surface.
User Setup
Press SET button to step through Emissivity Setup
Trigger Lock Switching / Normal Measurement.
Press
YELLOW button to save and exit Setup.
Emissivity Setup
This feature is to change the value of emissivity.
To adjust values for emissivity, follow the below
procedure:
1. Press
SET to select emissivity set up, icon E=0 on
the display is blinking.
2. Press to increase the value by 0.01 or press and
hold to access quick setting. The maximum value
is 1.00.
3. Press to decrease the value by 0.01 or press and
hold to access quick setting. The minimum value
is 0.10.