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ECFk20 Probe User's Manual <br />3. Installing the Probes <br />When selecting a site for installation, it is important to <br />remember that the soil adjacent to the probe surface has <br />the strongest influence on the probe reading and that the <br />probe measures the vicar ni water content. Therefore any <br />air gaps or excessive soil compaction around the probe <br />can profoundly influence the readings. Also, do not install <br />the probes adjacent to large metal objects such as metal <br />poles or stakes. This can attenuate the probe's electromag- <br />netic field and adversely affect output readings. Because <br />the EG5 has gaps between its prongs, itis also important <br />to consider the size of the media you are inserting the <br />probe into. It is possible to get sticks, bark, roots or other <br />material stuck between the probe prongs, which will <br />adversely affect readings. Finally, be careful when insert- <br />ing the probes into dense soil, as the prongs will break if <br />excessive sideways force is used when pushing them in. <br />When installing the ECH20 probe, it is best to maximize <br />contact between the probe and the soil. There are two <br />methods to accomplish this. <br />Forthe EG10/EG20: <br />1. (Recommended) Use Decagon's Probe Installation <br />Kit to install the probe. This kit has a custom -shaped <br />blade to make the insertion in the soil, then another <br />tool to place the probe into the insertion. For deeper <br />installations, use an augur to reach the desired depth, <br />0 <br />u <br />F <br />[1 <br />J <br />0 <br />J <br />u <br />n <br />u <br />l� <br />L <br />