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Yokogawa WT3000
Yokogawa WT3000
Yokogawa’s Precision Power Analyzer WT3000, High-end Power Meter with top precision
Yokogawa’s power measurement technology provides Best-in-Class precision and stability. With basic power accuracy of +/- 0.02 percent of reading, DC and 0.1 Hz-1 MHz measurement bandwidth, and up to four input elements, the WT3000 provides a high accuracy measurement solution for power electronics product testing. The Advanced Calculation Function (/G6 option) is now being released to support customer requirements for more advanced and complex power analysis capabilities
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Description
Yokogawa WT3000
More Precise. More Bandwidth. More Features.*2
• The WT3000 is a truly innovative measurement solution, combining top-level measurement accuracy
with special functions. *2
• The large, 8.4-inch liquid crystal display and the range indicator LEDs ensure good readability and
make the system easy to use.
Better Efficiency in Power Measurements
In developing the WT3000, Yokogawa focused on improving
efficiency in two basic areas. One goal was to obtain highly
precise and simultaneous measurements of the power
conversion efficiency of a piece of equipment. The other
objective was to improve equipment evaluation efficiency by
making simultaneous power evaluations and tests easier
and faster.
New Innovations to Enhance the Reliable
Measurement Technology
With the WT3000, we made further improvements to the
basic performance specifications for even better
functionality and reliability. We are confident users will
appreciate these improvements to power and efficiency
measurements thanks to the new power control
technologies we have introduced.
A Variety of External Interface Choices
The WT3000 is the first model in the
WT Series which is standardequipped with a PC card slot (ATA
flash card slot). The WT3000 is also
standard-equipped with a GP-IB port.
In addition, a serial (RS-232) port,
Ethernet port, USB port for peripheral,
and USB port for connection to PC
are available as options. The variety
of interface choices allows customers
to use the best interfaces for a wide
variety of equipment, media, and
network environments.
Select the model
most suited to your
measurement needs.
High Accuracy and Wide Frequency Range
Basic Power Accuracy
±(0.02% of reading + 0.04% of range)
Frequency Range
DC, 0.1 Hz to 1 MHz
Low Power Factor Error
Power factor influence when cosø=0
0.03% of S
S is reading value of apparent power
ø is phase angle between voltage and current
Current Range
Direct Input
0.5/1/2/5/10/20/30 [A] *
5m/10m/20m/50m/100m/200m/500m/1/2 [A] *
External Input
50m/100m/200m/500m/1/2/5/10 [V] *
Voltage Range
15/30/60/100/150/300/600/1000 [V] *
* Voltage range and current range are for crest factor 3
Continuous Maximum Common Mode
Voltage (50/60 Hz)
1000 [Vrms]
Data Update rate: 50 ms to 20 sec
Effective input range: 1% to 130%
Simultaneous measurement with 2 Units
Standard PC Card Slot
Storage Function (Approximately 30MB
internal memory)
Motor Version
Standard Version
*1 As of February 2007, for power accuracy in a three-phase power meter
(as investigated by Yokogawa)
*2 As compared to Yokogawa’s products
In addition to the functions of the standard version, the
models offer powerful motor/inverter evaluation
functions.
Motor Efficiency and Total Efficiency
Measurement
Analog or pulse signal from
rotating sensor and torque
meter can be input, and
allows calculation of torque,
revolution speed,
mechanical power,
synchronous speed, slip,
motor efficiency, and total
efficiency in a single unit.
APEX
Basic
Power
Accuracy:
±0.02%
The WT3000 is the answer to your measurement problems.
Have you had problems or questions such as these?
• When working with efficiency-improvement evaluation data for a high-efficiency motor, improvements cannot be seen
unless measurements are taken with very high precision.
• Measurement efficiency is poor during power measurements and power supply quality measurements.
