Apogee SP-214 Gebruikershandleiding - Pagina 9

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DEPLOYMENT AND INSTALLATION

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

horizontal surface, the sensor must be level. An Apogee Instruments model AL-100 Leveling Plate is recommended to level

the sensor when used on a flat surface or being mounted to surfaces such as wood. To facilitate mounting on a mast or pipe,

the Apogee Instruments model AL-120 Solar Mounting Bracket with Leveling Plate is recommended.

Pyranometer model SP-230 comes with a plastic standoff which should be placed between the sensor head and the leveling

plate. The standoff allows for more efficient use of the internal heaters by minimizing possible heating losses through

conduction.

Nylon Screw: 10-32x3/8

Model AL-120

Model AL-100

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.

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.