Figure 6
Model UT232: OPERATING MANUAL
19
Black
Red
Blue
Yellow
Insert red test leads to
V1
input terminal.
Insert blue test leads to
V2
input terminal
Insert yellow test leads to
V3
input terminal and
connecting it to every live wire of the 3 phase.
Insert black test leads to
COM
input terminal and
connect it to the neutrual wire of the 3 phase.
You must specify that this connection is used only
when the main transformer have STAR connection.
