4-Pole Soil Resistivity - AEMC 6471 User Manual

The instrument should be strategically positioned so that the leads will not be too
short to perform all the measurements.
The Input Noise option allows the viewing of noise for Z or Y inputs.
8.4.5

4-Pole Soil Resistivity

When 4-Pole Test Resistivity is selected from the tool bar, you can select:
• With or without Auxiliary Rod Resistance.
• Test voltage 16 or 32V
• Auto frequency - selects the optimum frequency (from 41 to 128Hz), usually
128Hz, or select manually from the drop-down frequency list.
• Test Method - Wenner or Schlumberger.
• Distances - the distance "d" (for Wenner test method) or "d" and "a" (for Sch-
lumberger test method), between the test electrodes, needs to be entered
for resistivity calculation to read out directly in Rho.
Ground Resistance Tester Model 6471
Shop for AEMC products online at:
Figure 8-9
AC.
ShopAEMC
www. .com 1.888.610.7664
63