YOKOGAWA WT310 User Manual

2-34
IM WT310-02EN
Connecting to the WT310/WT310HC
In the wiring examples that follow, the WT310/WT310HC input elements, voltage input terminals, and
current input terminals are simplified as shown in the following figure.
WT310/WT310HC
Voltage input
terminals
C
±
V
±
External current sensor
input connector
(EXT)
EXT
Wiring Example
The following figures show how to connect to the WT310/WT310HC.
SOURCE
LOAD
Earth side
OUT L OUT H
Shunt-type current sensor
SOURCE
LOAD
Earth side
Clamp-type current sensor
that outputs voltage
C
±
V
±
EXT
C
±
V
±
EXT
When You Are Using a Clamp-type
Current Sensor That Outputs Voltage
When You Are Using a Shunt-Type
Current Sensor
When you use a shunt-type current sensor in the wiring configuration shown at the bottom of page
2-21, the configuration changes as shown in the figure below.
Shunt-type current sensor
B9284LK
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