2-13
Using the SunEye
Capture a Skyline
N O T E
For panel azimuth; 0° is north, 90° is east, 180° is south, and 270° is west. For panel tilt, 0° is flat,
90° is vertical.
Tap the
Set Tilt = latitude, Azim = 180°(S)
button to set the orientation to the default, which is
tilt = latitude, azimuth = 180° (in northern hemisphere) or 0° (in southern hemisphere).
N O T E
When the first skyline in a new session is created, the skyline’s panel orientation is set to the
default skyline panel orientation. The panel azimuth and panel tilt of a skyline can later be
changed from
Skyline > Properties
. When a new skyline is created, the panel orientation always
defaults to the orientation of the last skyline. To measure orientation and tilt with the SunEye
built-in inclinometer and electronic compass,
See “Orientation” on page
2-32.
N O T E
Each time a new Session is created, the default panel azimuth and tilt is normally set to south (in
the Northern Hemisphere) and latitude tilt. If you prefer to have the SunEye use a different
default, then you can configure the SunEye to use the last value entered as the default. This is
helpful if you normally use the same azimuth and tilt, such as for racked systems on flat roofs.
This can be set in the SunEye Setup in the Tools menu.
2
Set the default skyline panel azimuth and panel tilt, then select
OK
.
You will now see a live preview of the skyline through the fisheye lens with the correct sunpaths
for that location superimposed on top.
Figure
2-21.
Preview Mode
For the northern hemisphere orient the SunEye toward the south by lining up the compass nee-
dle with
S
. This orientation is for a location in the northern hemisphere. For a location in the
southern hemisphere, line up the compass needle with
N
to orient the device true north.
N O T E
The SunEye automatically accounts for the magnetic declination based on the location you
entered for the session.
3
Hold the instrument level by adjusting the position and observing the electronic bubble level. It
is level when the green dot is inside the center circle
4
Click the Snap button or press the center navigation button (thumb works best).
The SunEye performs the following tasks:
• Captures the entire horizon with the built-in fisheye lens and digital camera.
• Plots the sunpaths on top of the captured digital image of the skyline.
• Acquires the location using the GPS if this property is set.
• Analyzes the image and attempts to identify unobstructed open sky and shade-causing ob-
