Windy Nation Suntura Series Solar Tracker HD - Manual (Page 9)

SunTura HD Solar Tracker Kit Manual
Revision 1.0
Page 9 of 11 Windy Nation 08/09/2012
Next, mount the included screw sets into the three holes on the Photo Sensor. These screws can be used to
mount the Photo Sensor to the solar tracker.
Figure 6: Mounting Fasteners to Photo Sensor.
F INE T UNING THE LED’ S FOR O PTIMAL S OLAR T RACKING 3.3
This step is optional. The SunTura Solar Tracker should track the sun with an accuracy of +/- 7 degrees or
better with no fine tuning. Mounting the Photo Sensor slightly off angle (human error) with respect to the
solar tracker can lead to a slight tracking inaccuracy. If you wish, the LED’s can be adjusted to provide
optimal tracking accuracy. (Do NOT attempt to fine tune the LED’s until the Photo Sensor has been
fastened to the solar tracker and is in its final position) To do this, first mount an object on the solar
tracker that is perpendicular to the solar panels. This will be used to generate a shadow from the sun’s light.
Below is an example.
Figure 7: Bolt mounted perpendicular to solar panel angle.
The LED’s on the Photo Sensor circuit board can be slightly adjusted to fine tune the accuracy of the solar
tracking. The goal is to eliminate the shadow casted by the bolt in Figure 7. The LED’s can be moved slightly
up or down to accomplish this task. Warning: Do NOT bend the LED’s more than 15 degrees from the factory
set positions!