Campbell Scientific CS300 CS300 Silicon Pyranometer - Page 6

CS300 Pyranometer 3. Installation The CS300 should be mounted such that it is never shaded by the tripod/tower or other sensors. The sensor should be mounted with the cable pointing towards the nearest magnetic pole, e.g., in the Northern Hemisphere point the cable toward the North Pole. Mounting height is not critical for the accuracy of the measurement. However, pyranometers mounted at heights of 3 m or less are easier to level and clean. To ensure accurate measurements, the CS300 should be mounted using PN 18356 base/leveling fixture, which incorporates a bubble level and three adjustment screws. The CS300 and base/leveling fixture are attached to a tripod or tower using one of three mounting configurations (see Figures 3-1 and 3-2). CAUTION Newer CS300 pyranometers have a bulge in their cable that contains a circuit board (located 18" from the sensor head). The bulge should be mounted on the underside of the mounting arm to give some protection from direct sunlight. To prevent the circuit board from being moved or stressed, cable tie each side of the bulge to the mounting arm. Tools required for installation on a tripod or tower: Small and medium Phillips screwdrivers 1/2" open end wrench for CM225 or 015ARM (Figures 3-1, 3-2) Tape measure UV-resistant cable ties Side-cut pliers Compass Step ladder NOTE Remove the red cap after installing the sensor. Save this cap for shipping or storing the sensor. 2