Hioki 3196 - Connection Methods

4.2 Connection Methods
46
Quick Start Manual
4.2 Connection Methods
• To measure 3-phase lines, the instrument channels (CHs 1 to 3)
should be connected in corresponding phase order.
• The instrument can measure from single-phase 2-wire to three-
phase 4-wire circuits, but voltage measurement at three points in
single-phase circuits is not supported.
• For voltage and current measurements in which power values
are not needed, the measurement mode can be set to three-
phase 4-wire to enable the input terminals of all four channels
for voltage or current measurements. However, be aware that
channels 1 to 3 are not isolated from one another.
• To ensure correct measurement results, follow the instrument
setup and connection 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)
Clamping a Sensor to a Line to be Measured
The arrows on the
clamp indicating the
direction of current
flow should point
toward the load
side.
(Example: 9660)
Conductor
L
O
A
D
S
O
U
R
C
E
Current flow
direction arrow
L
O
A
D
S
O
U
R
C
E
(Example: 9661)
Conductor
Current flow
direction arrow