YOKOGAWA WT310 User Manual

2-35
IM WT310-02EN
Making Preparations for Measurements
1
2
3
4
5
6
7
App
Index
Connecting to the WT330
In the wiring examples that follow, the WT330 input elements, voltage input terminals, and current
input terminals are simplified as shown in the following figure.
VOLTAGE
±
±
CURRENT
EXT
EXT
C
±
±
V
Input element
Voltage input
terminals
Current input
terminals
WT330
Also, the wiring example is for when a shunt-type current sensor is connected. When connecting
a clamp-type current sensor that outputs voltage, substitute the shunt-type current sensor with the
clamp-type current sensor.
Shunt-type current sensor
±
I
OUT LOUT H
Input element
Input element
Clamp-type current sensor
that outputs voltage
EXT
C
±
±
V
EXT
C
±
±
V
Wiring Example of a Single-Phase, Two-Wire System (1P2W) with
a Shunt-Type Current Sensor
The following wiring example shows how to configure the wiring to connect to input element 1. To
configure the wiring for other input elements, substitute the numbers in the figures with the appropriate
element numbers.
SOURCE
LOAD
Earth side
OUT L OUT H
Element 1
EXT
C
±
±
V
Shunt-type current sensor
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