Apogee Instruments SI-121 Manual del usuario - Página 8
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DEPLOYMENT AND INSTALLATION
The mounting geometry (distance from target surface, angle of orientation relative to target surface) is
determined by the desired area of surface to be measured. The field of view extends unbroken from the sensor to
the target surface. Sensors must be carefully mounted in order to view the desired target and avoid including
unwanted surfaces/objects in the field of view, thereby averaging unwanted temperatures with the target
temperature (see Field of View below). Once mounted, the green cap must be removed. The green cap can be
used as a protective covering for the sensor, when it is not in use.
An Apogee Instruments model AM-220 mounting bracket is recommended for mounting the sensor to a cross arm
or pole. The AM-220 allows adjustment of the angle of the sensor with respect to the target and accommodates
the radiation shield designed for all SI series infrared radiometers.