Suntrackers − Direct & Diffuse Irradiance

A Suntracker provides a stable mounting for a pyrheliometer and other solar instrumentation as it moves horizontally (azimuth) and vertically (zenith) to follow the solar arc throughout the year. A solar sensor can also be used to provide active tracking of the Sun to account for any inaccuracies in the internal clock and any movements of the trackers mounting base, A pyrheliometer is used to take accurate direct solar radiation from the Sun, whilst the suntrackers can be fitted with, or without, shading balls to allow pyranometers to take diffuse or total solar radiation measurements. The CM121 Shadow Ring can also be used to shield a sensor from direct radiation for diffuse irradiance measurements.