AMPROBE
6.4.1. Measurement procedure and results of "2-W"and "3-W" mode
1. Select "2-W" or "3-W" Earth measurement mode by means of the F1 key.
2. Connect the Black, Red, Green and Blue cables to the corresponding input terminals
of the instrument B1, B2, B3, B4 (see possible connections in the following pictures).
I1
B1
B2
B3
B4
Connection for 3 point Earth resistance
measurement
Connection for measuring the resistance between an extraneous conductive part and the earth system
1
3
N
I1
B1
B2
B3
I1
B1
B2
B3
Connection for 2 point Earth Resistance
measurement
1
3
N
B4
MULTITEST2000
Transf
1
1
3
3
N
N
B4