Amprobe GP-2 Geo-Test - Manual (Page 5)

GP-2 GeoTest
EN - 5
2. GENERAL DESCRIPTION
Thank you for purchasing a quality AMPROBE Test Instrument. This instrument will provide you
with accurate and reliable measurements provided that it is used according to this manual’s
instructions
The GP-2 GeoTest is able to measure:
F EARTH 2 WIRES:
2 wires earth resistance
F EARTH 3 WIRES:
3 wires earth resistance
F
ρρ
: 4 wires earth resistivity
The GP-2 GeoTest uses the "Fall of potential" method of measurement for all of the above
tests.