Posture the Clamp: Open up the clamp on the tester and placement it within the grounding conductor or electrode. Be sure that the clamp is securely closed for getting an accurate measurement. Vertical electrical sounding (VES) .It is analogous to the method of electrical profiling is based on the four-electrode https://finnyqfs404.blogdigy.com/the-greatest-guide-to-soil-resistivity-measurement-bangladesh-49750010