Amprobe GP-1 Earth-Tester-Ground-Probe - Manual (Page 8)

Soil Resistivity Test
Test A
(cont’d.)
Function
selector switch Control Panel
SAVE
button
RECALL
button
CLEAR
button
DISTANCE
SELECTOR
button
METER/
FEET
SELECTOR
button
Page 8
4) Referring to Table 1 or 2 (on previous page), press the DIST button to scroll
through the preset values until the appropriate distance is displayed. Each
time you perform a test and change the distances, you must go through the
same steps.
5) To change distance in meters, or feet, press the m/ft button.
“m” will be displayed if meters are selected.Then press the
DIST button to scroll through the values until the appropriate
distance is displayed. Repeat process above if distance is
being measured in feet.
6) Push and hold START button until a result is
displayed, then release. Whether you select the
distance in meters or feet, the value will be displayed
in ohmmeters. Record the value on paper, or save it to
memory by pressing the SAVE button.
7) To view the measured resistance from which the
GP-1 calculated resistivity from, turn the selector
switch to TEST D: SOIL RESISTANCE, and push and
release the START button. Record the value on
paper or save it to memory by pressing SAVE button.