Date And Time; Emissivity - TESTBOY TV 291 Bedienungsanleitung

Operation

Date and Time

In the menu Set date and time, the date and time can be set.
Using call up the main menu and, using
,
press in order to call up the time interface and, using the buttons
Using , the indicated value can be changed. Using
1 Year
2 Month
3 Day
4 Hour
5 Minute

Emissivity

Using , call up the main menu and, using
degree of emission, press
Using , you can exit the selection.
Notes
Infra-red energy is radiated from all objects. How much energy is radiated depends on the actual surface
temperature and the degree of emission at the surface. The measuring instrument records the infra-red energy
radiated from the surface and, based on this data, calculates an approximate temperature value. Many objects and
materials frequently occurring, for example, painted metal, wood, water, skin and fabric, radiates energy very good
and readily enables very good measurements. For surfaces that feature good radiation characteristics (a high
degree of emission), the degree of emission is ≥ 90 % (0.90). Shiny surfaces or unpainted metals only have
a degree of emission of < 60 % (0.60). These materials do not have good radiation characteristics and, thus,
only a low emissivity. In order to be able to more accurately measure materials with low emissivity, the degree of
emissions must be accordingly corrected. By adapting the degree of emission, the actual temperature can normally
be calculated more accurately.
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, select the menu for setting the date and time. Subsequently,
, select the degree of emission module. In order to set the
and then, using select the value required.
,
and
, you can exit this menu.
, set the date and time.
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Testboy TV 291