Apogee Instruments SP-230 Руководство пользователя - Страница 9
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DEPLOYMENT AND INSTALLATION
Mount the sensor to a solid surface with the nylon mounting screw provided. To accurately measure total
shortwave radiation incident on a horizontal surface, the sensor must be level. An Apogee Instruments
model AL-100 leveling plate is recommended for this purpose. To facilitate mounting on a cross arm, an
Apogee Instruments model AM-110 mounting bracket is recommended.
In addition to orienting the cable to point toward the nearest pole, the sensor should also be mounted
such that obstructions (e.g., weather station tripod/tower or other instrumentation) do not shade the
sensor. Once mounted, the green cap should be removed from the sensor. The green cap can be
used as a protective covering for the sensor when it is not in use.
To minimize azimuth error, the sensor should be mounted
with the cable pointing toward true north in the northern
hemisphere or true south in the southern hemisphere.
Azimuth error is typically less than 1 %, but it is easy to
minimize by proper cable orientation.
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