YOKOGAWA WT310 User Manual

2-23
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
Input element
C
±
V
±
U1
I1
C
V
±
±
Voltage input
terminals
Current input
terminals
The voltage input terminals
and current input terminals of
input element 1 are labeled
as U1 and I1, respectively.
V: VOLTAGE terminal
C: CURRENT terminal
WT330
Note
The thick lines on the wiring diagrams are the parts where the current flows. Use wires that are suitable for
the current levels.
Wiring Examples of Single-Phase, Two-Wire Systems (1P2W)
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.
C
±
V
±
C
±
V
±
C
±
V
±
SOURCE
LOAD
U1
I1
C
V
LOAD
U1
V
I1
C
SOURCE
SOURCE
LOAD
Input element 1
SOURCE
LOAD
Input element 1
±
±
±
±
SOURCE
LOAD
Input element 1
SOURCE
LOAD
Input element 1
SOURCE
LOAD
U1
I1
C
V
SOURCE
LOAD
U1
I1
C
V
±
±
±
±
C
±
V
±
2.9 Wiring the Circuit under Measurement for Direct Input

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