Apogee SQ-100 Series Manuel du propriétaire - Page 9

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DEPLOYMENT AND INSTALLATION

Mount the sensor to a solid surface with the nylon mounting screw provided. To accurately measure PPF

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.