YOKOGAWA WT310 User Manual

2-36
IM WT310-02EN
Wiring Example of a Single-Phase, Three-Wire System (1P3W)
with Shunt-Type Current Sensors
The wiring is connected to input elements 1 and 3.
SOURCE LOAD
N
OUT LOUT H
OUT LOUT H
Element 3
Element 1
EXT EXT
C
±
±
V
C
±
±
V
Wiring Example of a Three-Phase, Three-Wire System (3P3W) with
Shunt-Type Current Sensors
The wiring is connected to input elements 1 and 3. Measure the line voltage using S-phase power as
the reference.
SOURCE LOAD
R
S
T
OUT LOUT H
OUT LOUT H
Element 3
Element 1
EXT EXT
C
±
±
V
C
±
±
V
Wiring Example of a Three-Phase, Four-Wire System (3P4W) with
Shunt-Type Current Sensors
Model: Applies to the WT333.
The wiring is connected to input elements 1, 2, and 3.
SOURCE LOAD
OUT LOUT H
R
S
T
N
OUT LOUT H
Element 3
Element 1
Element 2
OUT LOUT H
EXT EXT EXT
C
±
±
V
C
±
±
V
C
±
±
V
2.10 Wiring the Circuit under Measurement When Using Current Sensors

YOKOGAWA WT310 Specifications

General

Model	WT310
Category	Digital Power Meter
Current Measurement Range	0.5 mA to 20 A
Weight	Approx. 3.5 kg
Voltage Measurement Range	15 V to 600 V
Frequency Range	100 kHz
Basic Accuracy	0.1%
Power Accuracy	0.1%
Display	LCD
Interfaces	USB, RS-232, GP-IB
Input Elements	1
Dimensions	213 mm x 88 mm x 346 mm