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8.
Configuration and Setup
8.1
Signal Conditioning
Emissivity and Transmittance
Besides the emissivity correction (mentioned in Chapter 6.4), a pyrome-
ter must be adjusted for the transmission properties of any supplemen-
tary lens and/or protective window screwed onto the pyrometer. Set the
pyrometer for the specific transmission factor (a percentage value) which
is indicated either in the products's data sheet or on the lens itself. This
is parameter
TAU.1
C001
. If you are not using any auxiliary lens or protective window, set
the parameter to 100.0.
Ambient Temperature Compensation
Under normal conditions, ARDOMETER MPA should produce highly ac-
curate temperature readings once you have set the emissivity and
transmittance factors. Certain conditions, however, will require that you
make an additional correction. Object surfaces which have very low
emissivity will reflect thermal radiation from their surroundings. If your
target object is in surroundings which are hotter than the target itself,
and the infrared radiation coming from extraneous sources reflects off of
the object, the sensor will collect this additional energy. To ensure that
the measurement is not distorted and that temperature readings are
completely accurate, you should activate „Ambient temperature com-
pensation" (switch on
Now enter the temperature value of the ambient source of radiation and
its influence as a percentage. You will have to determine these variables
first.
and can be accessed at configuration layer
C002/C003 / BAC.1)
15
Operating Manual MPA
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