(10)Key of MAX/MIN/AVG
It is used to switch between the measurement of maximum, minimum and average.
(11)Key of ENTER
It is used to confirm a storage or reading of data.
(12)REL
It is used to select relative measurement.
(13)Key of
It is used to select a memory for storage of data obtained.
(14)E socket
It is used to connect with the grounding pole.
(15)P/S socket
It is used to connect with the auxiliary grounding pole.
(16)C/H socket
It is used to connect with the auxiliary grounding pole.
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Users’ Guide for Earth Ground Resistance Tester