Hioki 3169-20 - Connection to a Line to be Measured

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4.2 Connection Methods
4.2.4 Connection to a Line to Be Measured
Connect the voltage cables and clamp-on sensor to the line to be
measured, while referring to the wiring diagram.
To ensure correct measurement results, follow the instrument
setup and wiring instructions precisely.
Clip securely to metal parts such as connection
screws or bus bars at the power side.
Connecting the Voltage Cords to the Lines to be Measured
(Example)
OK
Clamp around only one con-
ductor. Measurement is not
possible if the clamp is placed
around two lines in a single-
phase circuit, or three lines in a
three-phase circuit.
(Example: 9660)
Current flow
direction arrow
L
O
A
D
S
O
U
R
C
E
(Example: 9661)
Conductor
Current flow
direction arrow
(Example: 9660)
Conductor
L
O
A
D
S
O
U
R
C
E
The arrows on the
clamp indicating the
direction of current
flow should point
toward the load
side.
Clamping a Sensor to a Line to be Measured