Grounding
Earth grounding is recommended when sensors are installed at distances greater than 10 meters (33 feet) from the Aspen 10. This helps to stabilize the ground potential of the Aspen 10 and divert electrical transients away from its electronics. For this purpose, Campbell Scientific recommends using 14 AWG wire.
Install a ground rod near the Aspen 10. If there is a hard-pan layer that cannot be penetrated, insert the rod at an angle. Attach one end of the ground wire to the insulated push-on ground terminal by crimping it, and then slide it onto the ground spade. Secure the other end of the ground wire to the ground rod.
Contact local utilities for the location of buried utility lines before digging or driving ground rods.
Ensure all local electrical codes are followed by having electrical equipment and grounding installed by a licensed electrician.