YOKOGAWA WT310 User Manual

7-13
IM WT310-02EN
Specifications
1
2
3
4
5
6
7
App
Index
7.4.6 Display
Item Specifications
Display type 7-segment LED
Simultaneous display 4 items
Maximum display
(display range)
During normal measurement
Displayed item When the number of
displayed digits is 5
When the number of displayed
digits is 4
U, I, P, S*, Q* 99999 9999
λ* 1.0000 to –1.0000 1.000 to –1.000
Φ* G180.0 to d180.0 G180.0 to d180.0
fU*, fI* 99999 9999
WP, WP±, q, q±
When the unit is MWh or
MAh
999999 999999
(–99999 for negative watt hour and ampere hour.)
When the unit is other than
MWh or MAh
99999 99999
TIME Elapsed integration time
0 to 99 hours 59 minutes 59
seconds
100 hours to 9999 hours 59
minutes 59 seconds
10000 hours
Display A
indication
0.00.00 to
99.59.59
100.00 to
9999.59
10000
Display
resolution
1 s
1 minute
1 hour
Efficiency (WT332/WT333
only)
0.000 to 99.999 to
100.00 to 999.99%
0.00 to 99.99 to
100.0 to 999.9%
Crest factor 99999 9999
Four arithmetic operation 99999 9999
Average active power 99999 9999
Voltage peak 99999 9999
Current peak 99999 9999
Power peak 99999 9999
* The computation accuracy (the value calculated from the measured value) is one-half the
display resolution.
Maximum display
(display range)
During harmonic measurement
Displayed item When the number of displayed
digits is 5
When the number of displayed
digits is 4
U, I, P 99999 9999
λ 1.0000 to –1.0000 1.000 to –1.000
Uhdf, Ihdf, Phdf 0.000 to 99.999 to
100.00 to 999.99%
0.00 to 99.99 to
100.0 to 999.9%
Uthd, Ithd 0.000 to 99.999 to
100.00 to 999.99%
0.00 to 99.99 to
100.0 to 999.9%
ΦU,
ΦI
Phase angle of the
fundamental current with
respect to the fundamental
voltage
G180.0 to d180.0 G180.0 to d180.0
Phase angle of the 2nd
harmonic and higher
harmonics of voltage with
respect to the fundamental
voltage
–180.0 to 180.0 –180.0 to 180.0
Phase angle of the 2nd
harmonic and higher
harmonics of current with
respect to the fundamental
current
–180.0 to 180.0 –180.0 to 180.0
Unit symbols m, k, M, V, A, W
, VA, var, °, Hz, h±, TIME, %
7.4 Features

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