Manual

GSC53N - GSC57 - ZG47
EN - 55
6.5. EARTH: SOIL RESISTANCE AND RESISTIVITY MEASUREMENTS
Turn the switch on EARTH position.
The F1 key permits to select one of the following measuring modes (which
can be shown cyclically when pressing the key):
 Mode "2-W" (the instrument measures the resistance between 2 points).
 Mode "3-W" (the instrument measures the resistance using two auxiliary
earth rods).
 Mode " " (the instrument measures the ground resistivity).
WARNING
Never disconnect the test leads from the circuit under test when the
message " MEASURING " is displayed.