1. the final test is a three-wire ground stake or earth electrode resistance test
2. in the top of the unit there is a standard three wired ground stake simulator connected via our three wires
3. the earth rod is on the green a potential probe on the yellow and a current probe on the red so we can now start the test
4. last earth electrode test method the meter offers is stateless testing using the optional

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Website: www.uk.megger.com

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