YOKOGAWA CW140, User Manual, Page: 27 / 292

3-5
IM CW140-E
Precautions for Safe Measurement
3
3.4 Diagrams of Basic Wiring
This section explains the methods of basic wiring using illustrations.
(1) 1
φ φφ
φ
φ
2W
(2) 1
φ φφ
φ φ 3W
(3) 3 φ φφ φ φ 3W2i
TIP
In the case of a current-sensing clamp, the symbol of a current input terminal shown on the CW140 main
unit differs from that shown on the display, as indicated in the figures above.
1
N
N V1 CH1
I1
Voltage input terminals Current input terminals
On-screen symbol
Current-sensing clamp
S
O
U
R
C
E
L
O
A
D
2
V2 CH2
I2
1
N
N V1 CH1
I1
Voltage input terminals Current input terminals
On-screen symbol
S
O
U
R
C
E
L
O
A
D
3
R
S
T
V3 CH3
I3
1
2
N V1 CH1
I1
Voltage input terminals Current input terminals
On-screen symbol
S
O
U
R
C
E
L
O
A
D