HT Italia GSC53N, Instruction Manual

Page: 58 / 152

GSC53N - GSC57 - ZG47
EN - 56
6.5.1. 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).
B2 B3 B4 B1
I1 I2 I3
1
3
N
Connection for 3 point Earth resistance
measurement
B2 B3 B4 B1
I1 I2 I3
1
1
3
3
N N
Transf
Connection for 2 point Earth Resistance
measurement
B2 B3
B4
B1
I1 I2 I3
1
3
N
Connection for measuring the resistance between an extraneous conductive part and the earth system
3. Press the START key. The instrument starts the test.
START
STOP