Continuity Test; 3-Pole Earth/Ground Measurements & Coupling; 3-Pole Earth/Ground Measurements; Earth/Ground Coupling Measurements - AEMC 6470-b User Manual

6.3.1
The 2-wire mΩ measurement gives a quick measurement result, accompanied by
an audible beep, during a continuity check.
The display is in the sensitivity range (0.5Ω to 1.99kΩ) and the terminal check is
limited to terminal H (Z) (a cable must be connected to it), making it possible to
start the measurement with an open circuit.
For a continuity check, the following settings are mandatory:
• The 2-wire mΩ measurement function must be selected.
• The device must be in manual mode.
• The alarm function must be active (On).
• The alarm threshold must be low (<).
• The buzzer must be activated (bEEP On).
6.4 3-Pole Earth/Ground Measurements & Coupling
6.4.1
Pressing on Hz/OPTIONS in MANUAL mode allows the following parameters to
be changed using the ► button:
• EARTH blinks
• 128 Hz blinks
• Test voltage blinks  Test Voltage Selection
6.4.2
This measurement calls for making and storing three intermediate measurements
(at the same frequency). It is available only in MANUAL mode.
Connection diagram:
Ground Resistance Tester Model 6470-B
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3-Pole Earth/Ground Measurements

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Earth/Ground Coupling Measurements

Earth 1
Measurement #1
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Earth 2
Measurement #2
R
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