Amprobe Multitest-1000 Continuity-Tester Instrukcja Użytkownika Pobierz pdf (Strona 31)

4.4. EARTH ρ: EARTH RESISTANCE AND RESISTIVITY MEASUREMENT

Turn the rotary knob to the EARTH ρ position.

Switch on the instrument.

The FUNC key permits to select one of the following measuring modes

(which can be shown cyclically when pressing the key):

FUNC

) Mode “2P” (the instrument measures earth resistance between 2 points).

) Mode “3P” (the instrument measures earth resistance using two auxiliary

earth rods).

) Mode “ρ“ (the instrument measures earth resistivity).

The resistance is measured with a 4-cable voltamperometric method, so the value

measured is not dependant on the utilized cables. For this reason this method doesn’t

need any cable calibration.

If the cables aren’t long enough, lengthen them or utilize cables longer than the standard

ones.

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Amprobe Multitest-1000 Continuity-Tester Instrukcja Użytkownika Strona 31