Delta MS 300M - Display Solar Power Calculator Specifications download pdf (Page 2)

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Precision Power Analyzer WT3000

Yo kogawa’s highest-precision power meter

The WT3000 has the highest precision of the Yokogawa power

meters in the WT Series. The models in the WT Series are

designed to meet a wide variety of user needs. The WT200

Series is a high price-performance series which is very popular

in production line applications. The WT1600 allows

measurement data to be viewed in a variety of ways, including

numerical value display, waveform display, and trend display

capabilities.

WT3000

±0.02%

WT1600

±0.10%

WT210/WT230

±0.10%

*reading error

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Yokogawa’s power measurement technology provides best-in-class

precision and stability

Features

Option

Standard feature

Software (sold separately)

PCcard

slot

Internal

Memory

DAoutput

VGA

Comm

Printer

Voltage

range

Current

range

External

sensor

range

Frequency

power

range

Inputs

4 input

elements

Basic

Power

Accuracy

Crest

factor

Display

Data

updating

interval

As fast as

50 ms

Delta

calculation

Frequency

measurement

Motor

evaluation

Comm

USB

Software

USB

memory

Cycle Fricker

Wideband

harmonics

IEC

harmonics

Waveform

computation

FET

computation

Sampling

data saving

Normal

harmonics

Software Software

With basic power accuracy of ± 0.02% of reading, DC and 0.1

Hz–1 MHz measurement bandwidths, and up to four input elements,

the WT3000 provides higher-accuracy measurement for inverter I/O efficiency.

More Precise. More Bandwidth. More Features.

• The WT3000 is a truly innovative measurement solution, combining top-level measurement accuracy

with special functions.

• 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 standard-

equipped 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.

夹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

夹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

夹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] *

夹Voltage Range

15/30/60/100/150/300/600/1000 [V] *

*Voltage range and current range are for crest factor 3

夹Continuous Maximum Common Mode

Voltage (50/60 Hz)

1000 [Vrms]

夹Data Update rate: 50 ms to 20 sec

夹Effective input range: 1% to 130%

夹Simultaneous measurement with 2 Units

夹Standard PC Card Slot

夹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.

夹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.

For answers to these questions, see page 6.

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Delta MS 300M - Display Solar Power Calculator Specifications Page 2

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