Davis Instruments Daytime Fan-Aspirated Radiation Shield DAV-7747 Wireless Sensor DAV-7747 Scheda Tecnica

Installing the Daytime Fan Kit

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9. Connect the wire coming from the top solar panel on the SIM cover 

included in the components of the fan-aspirated unit to the SIM board.

Note: 

This wire is not needed on cabled Vantage Pro2. For cabled systems, you should 
secure it where it will not interfere with the SIM box.

10. Connect the wire coming from the bottom solar panel to power cable 

assembly in the SIM Box.

11. Reinsert the foam into the cable access port in the SIM box.
12. Close the SIM box.
13. Use cable ties to secure cables.
14. Make sure the fan blades are rotating by directing the connected SIM cover 

to sunlight or by shining a bright incandescent light on the solar panel. 
You should hear a slight whir if the fan is running.

Guidelines for Securing Cables
• Secure cables so they will not whip in the wind.
• Secure cables to metal poles by using a cable tie or 

by wrapping electrical tape around them both. 

• Place clips or ties approximately every 3 to 5 feet 

(1 to 1.6 m). 

• If needed, additional cable ties, cable tie mounts, 

and other hardware can be obtained at a hardware or electronics store.

Note: 

Do not use metal staples or a staple gun to secure cables. Metal staples—especially 
when installed with a staple gun—have a tendency to cut the cables.

Cable Clip

Cable Tie