YOKOGAWA WT310 User Manual

App-3
IM WT310-02EN
Appendix
1
2
3
4
5
6
7
App
Index
Appendix 1 How to Make Accurate Measurements
Because the WT310/WT310HC/WT330 measures high frequencies, the effects of i
C
s cannot be
ignored.
If you connect the WT310/WT310HC/WT330 current input terminal to the side of the power supply
(SOURCE) that is close to its earth potential, the WT310/WT310HC/WT330 current measurement
circuit positive and negative terminals are close to the earth potential, so V
C
s becomes approximately
zero and very little i
C
s flows. This reduces the effect on measurement accuracy.

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