Campbell Scientific UT20 and UT30 Tower-based Weather Stations - Manual (Page 34)

UT20 and UT30 Tower-based Weather Stations
FIGURE 8-4. BPALK 12 volt power supply
8.1.5 SP10 Solar Panel
Solar panels purchased from Campbell Scientific are shipped with a charge
plug taped to the back of the panel. The charge plug is not used with the
PS100. Refer to the solar panel manual for installation instructions.
1. Mount the SP10 solar panel to the mast, facing south (northern
hemisphere) as shown in FIGURE 8-6. Position the SP10 at the top of the
1 1/4 inch diameter section of the mast. Install the U-bolt, muffler clamp,
and nuts as shown in FIGURE 8-6.
2. The solar panel should be oriented to receive maximum insolation over the
course of the year. Suggested tilt angles (referenced to the horizontal
plane) are listed below.
Site Latitude Tilt Angle
0 to 10 degrees 10 degrees
11 to 20 Latitude + 5 degrees
21 to 45 Latitude + 10 degrees
46 to 65 Latitude + 15 degrees
> 65 80 degrees
3. After determining the tilt angle, loosen the two bolts that attach the
mounting bracket to the panel. Adjust the angle, then tighten the bolts.
Secure the lead wire to the mast using wire ties.
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