ADInstruments AD4234 User Manual page 18

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Earth electrode
(rod) under test
b. Select testing type: "2P", "3P" or "4P" and press button. c. Press
"TEST/STOP" button to test and take a reading.
*When you make the "4P measurement", LCD shows
"Vp Error", short circuit Cl (black) and P1 (green).
4Stick the three Auxiliary Earth Spikes into the ground deeply. The distance
must be 5—lOm between theAuxiliary
Earth Spikes.
Notes:
Check the following prior to proceeding with measurement:
1. Checking if Auxiliary Earth Spikes connect correctly when
the 'Rc' LED lit.
2. Indication for 'Rc' & 'Rp'
Rc: When the 'Rc LED lit, this means there is no test current output.
Stop testing and check relevant testing point.
Rp: When the 'Rp" LED is lit, the 'R' value on the LCD
will displayed '>2k0', this means testing Earth
Resistance value is over 2k0.
©Copyright Abacanto Digital SA.
Potential Current
spike spike
Two-terminal earth resistance measurement
Earth electrode (rod) under test
Manual de usuario AD4234
AD Instruments
Potential spike
18