VALUE SERIES POWER ANALYZER WT300

The WT300 series of digital power meters are the fifth generation of Yokogawa's best-selling compact power meters: instruments that play a key part in ensuring optimum standards of energy efficiency and conservation by measuring the power consumption of electrical equipment. Combining accurate and reliable power measurement over a wide power range with flexibility, ease of use and a choice of communication interfaces, these instruments will help developers, engineers and manufacturers of electrical equipment to ensure that their products comply with emerging IEC and EN standards and increasingly complex and stringent specifications on energy efficiency. They provide ideal measurment solutions for various applications ranging from stand by power measurement to Energy star for various manufacturers such as domestic "white goods", battery chargers, lighting systems.

What's New: The WT310 is approved by Standard Performance Evaluation Corporation (SPEC) for power efficiency benchmarking.

 

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The WT300's wide range of funcations and enhanced specifications allows to handle all the measurement applications from low-frequency to high frequency inverters using a single power meter.

Accuracy with fast display and update rate:
The WT300 series with the fast display and date update rate of Max. 100ms offers the customer a short tact time in their testing procedure. The basic accuracy for all input ranges is 0.1% rdg + 0.1% rng (50/60Hz) and DC 0.1% rdg + 0.2% rng (0.2% + 0.2% for 40A).

Simultaneous Measurement:
U/I/P/Freq/Integ(+/-)/Harmonics components/ THD with max. 100ms cycle.

In addition to standard power measurements, the WT300 offer a wide range of harmonic measurement capabilities, including the ability to carry out simultaneous measurement of normal power parameters such as RMS, mean or DC power along with measurement of harmonics up to the 50th order. As a result, overall measurement times are reduced, allowing users to allocate their effort and time to other tasks.

First in Class:

Auto ranging function available in selected ranges.

The auto-range function is used to select or change the range automatically in specific ranges. This results in shorter range changing times, allowing more quick and efficient testing.

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First in Industry:

Auto Ranging Function For Integration Measurement.

Typically, when power meters operate in an integration mode to measure power consumption and standby power, the measuring ranges need to be fixed. However, if the level of the input exceeds the maximum of the selected range, the test will need to be repeated. The WT300 Series has a high speed automatic ranging capability in integration mode, which removes the need to repeat any test.

Bandwidth: DC and 0.5Hz to 100 kHz (WT310HC is up to 20 kHz for 40A).


Direct Input:
Maximum direct input up to 600V and 20A, or 40A (incase of WT310HC). The wide current input range gives the customer options to use the WT300 series from as low as 50 micro-Amps to 40Arms.


High-speed data update (up to 10 readings per second.)



Comparison of WT210/230 with WT310/330

 
WT310/WT332/WT333
WT310HC
WT210/WT230
DC power measurement accuracy
0.1% of reading+0.2% of range
0.3% of reading+0.2% of range
0.3% of reading+0.2% of range
Current range (Crest factor=3)Voltage and current
basic accuracy
Direct Input
5m/10m/20m/50m/100m/200m/
0.5/1/2/5 /10/20[A]( WT310) 0.5/1/2/5/10/20[A](WT332/WT333
1/2/5/10/20/40[A]
5m/10m/20m/50m/100m/200m/
External current input
EX1: 2.5/5/10[V]
EX2: 50m/100m/200m/500m
/1/2[V] (OP.)
EX1: 2.5/5/10[V]
EX2: 50m/100m/200m/500m
/1/2[V] (OP.)
EX1: 2.5/5/10[V]
EX2: 50m/100m/200m[V] (OP.)
Effective input range for voltage & current (CF=3)
1% to 130%
1% to 100% (40A range only)
1% to 130%
Maximum displaying value for voltage & current (CF=3)
1% to 140%
1% to 110% (40A range only)
1% to 140%
Effect of Power Factor (CF=3) 0<PF<1
Power reading x {power reading error + (power range / apparent power reading) + tanφ x (influence when PF = 0)} %
Power reading x {power reading error + (power range / apparent power reading) + tanφ x (influence when PF = 0)} %
Add the power reading x {tanφ x (influence when PF = 0)}%.
Simultaneous measurement of RMS, Voltage MEAN & DC
Yes
Yes
No
Frequency measurement

2 channels (voltage & current)

2 channels (voltage & current)
selected voltage or current (one)
Number of display items
4 items
4 items
3 items
Sampling rate
Approximately 100 kS/s
Approximately 100 kS/s
Approximately 50 kS/s
Harmonic measurement
Yes (OP, /G5)
Yes (OP, /G5)
Yes (OP, /HRM)
THD calculation maximum order setting
Yes (OP, 1-50th)
Yes (OP, 1-50th)
No
Auto ranging of integration
Yes
Yes
No
Communication interface USB
Yes
Yes
NO
GP-IB
Yes GP-IB or RS-232
Yes GP-IB or RS-232
Yes (OP) GP-IB or RS-232C
RS-232
Yes RS-232 or GP-IB
Yes RS-232 or GP-IB
Yes RS-232 or GP-IB
Ethernet
Yes (OP)
Yes (OP)
NO
IEEE standard for GP-IB
IEEE488.2
IEEE488.2
IEEE488.1 and IEEE4882.
Comparator function
No
No
Yes
Viewer software
Free (included)
Free (included)
Free (download)

The WT300 series power meters are easy to use, cost effective, and accurate for a wide range of applications, such as production, testing, evaluation, and research and development.

For home appliances and office equipment

Production line or QA testing of electric devices

-Multiple communication interfaces such as USB, RS-232 or GP-IB and Ethernet capable.

-The compact half rack mount size helps users build smaller test systems with a better return on investment.

-D/A output function for data recording
 
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Development and evaluation tool for home appliances

-5mA range helps small current measurement (WT310)

-Range skip function provides the ability to select usable ranges in advance, while auto ranging adapts rapidly to changing input conditions. [PIC]


Testing to international standards such as IEC62301, Energy Star, and SPECpower

-The WT310 has a high measurement resolution of Max. 100µW under the 5mA range setting.

-Simultaneous measurement of normal power parameters, harmonic components, and THD.

-Free PCM software for IEC62301 testing

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Evaluation of large current equipment

-Direct high current measurement up to 40Arms without using external sensors

-Auto ranging function for Integration mode.

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For industrial equipment and transportation

Automotive- Battery or DC driven device evaluation

-Accurate DC measurement: 0.3% total

-Direct high current measurement up to 40A without any external current sensor.

-Charge/Discharge energy measurement for batteries

Duration testing and efficiency measurement for industrial motors and rotating machinery

The WT300 series provides reliable current integration (Ah) and Energy (Wh) measurement for up to 10,000 hours. The D/A option is used to save and monitor the measurement results. An external recorder or data logger, such as a ScopeCorder, can be used to save this D/A function data along with other parameters, such as temperatures, torque, and rotation speed.

Current Sensor Input

Conformance and evaluation testing of uninterruptable power supplies (UPS)

-Maximum order setting for THD calculations

-Efficiency measurements using a single power meter

Multiple units for parallel testing of product evaluation of electrical equipment

New version of the WTViewerFreePlus , measurement data can be collected from multiple WT300 units
(same model maximum 4 units).

-Various communication interfaces such as USB, RS-232 or GP-IB and Ethernet are available.
-Data update rate can also be measured simultaneously as fast as 100ms.
- power parameters can be measured up to the 200 items simultaneously.
-D/A output function for data recording is available.

WtViewerSyncSy 1



Life Cycle Assessment

LCA

[WT310/WT310HC]
Reduced energy, emission of CO2, NOx and SOx about respectively 20%, 18%, 22% and 11% compared to the previous model.

PDF Results of Life Cycle Assessment.

[WT332/WT333]
Reduced energy, emission of CO2, NOx and SOx about respectively 41%, 38%, 43% and 30% compared to the previous model.

PDF Results of Life Cycle Assessment.

Model Description
WT310 Single-input element model
WT310HC High current single-input element model
WT332 2-input element model
WT333 3-input element model
Name Description File Type  
WT300 Series Bulletin Digital Power Meters WT310/WT330 Bulletin pdf icon
1.81 MB
Download
WT210/230 Comparison Chart PDF Chart comparing the WT210/230 to the WT310/330 pdf icon
211 KB
Download
Name Description  
Precision Bearing Vibration Test (WT333/SL1000/MX100) The precision beaning testing system of the mechanical and electrical engineering company. Learn More
Lighting Test by WT310 & MX100 (for WT310/MX100) Lighting products need to evaluate not only power parameters but also temperature. Learn More
Cleaner Test (for WT310) Evaluation of vacuum cleaner requires to measure distorted waveform. Learn More
Washing machine Evaluation using D/A output (for WT310) In the test of new washing machine, voltage, current, power, and the control signal on the time control panel need to be recorded. Learn More
Performance Evaluation and Testing of Home Electronics (for WT310) Prevention of global warming has become an issue in recent year, and industry is turning more and more toward stricter energy savings policies and the use of renewable energy. Learn More
Evaluation of IH Cooking heater (for WT310HC) In recent years the buzzword “all electric” is becoming popular, which refers to kitchen appliances, water heaters, and other devices in the home all being supplied with electric power. Learn More
Current Distortion (THD) test for Production line (for WT310) Conventionally, measurement of the harmonic distortion required special modes or lengthy data acquisition times which impacted the processing time on manufacturing lines. Learn More
Name Description  
LabVIEW Drivers for WT300 Series LabVIEW drivers for WT300 Series y-Link
Power Consumption Measuring Software For use with WT3000, WT1800,WT1600*1, WT500, WT210*1 and WT310. Conforms to IEC62301 Ed2.0(2011) and EN 50564:2011 testing methods.   *1 The WT1600 and WT210 discontinued sales y-Link
TMCTL TMCTL is a DLL to support development of custom software. By using this DLL, users can write original programs to control instruments from a PC. y-Link
USB Driver The USB Driver is needed when required by the software. y-Link
WT300 Series Sample Program These are sample program of Visual Basic, Basic net and C# for Communication interface GP-IB, Ethernet and USB for WT300 Series. y-Link
WTViewerFreePlus for WT300 Series (included) The WTViewerFreePlus software can capture measured numeric values, harmonic values, and waveform data. The data can be transferred to a PC via a USB, GP-IB/RS-232 or Ethernet communication interface, and it can be displayed and saved onto the PC. Learn More

BNC Cable 366924

BNC Cable 366924

BNC-BNC 1m. For connection to simultaneously measurement with 2 units, or for input external trigger signal. 

BNC cable 366925

BNC cable 366925

BNC-BNC 2m. For connection to simultaneously measurement with 2 units, or for input external trigger signal.

Measurement lead set 758917

Measurement lead set 758917

A set of 0.8m long red and black test leads, used in combination with a pair of optional 758922 or 758929 alligator-clip adapters. Appliable for DL750/DL750P & SL1400.

Fork terminal adapter 758921

Fork terminal adapter 758921

Adapters for fitting a 4mm banana plug to a fork terminal. Set contains one black and one red clip. 1000 Vrms-CAT II.

Small Alligator-clip Adapter 758922

Small Alligator-clip Adapter 758922

Rated at 300 V. Attaches to the 758917 test leads. Sold in pairs.
Applicable for DL750/DL750P, SL1000, SL1400

Safety Terminal Adapter Set 758923

Safety Terminal Adapter Set 758923

Two adapters in a set (spring-hold type).

Conversion Adapter 758924

Conversion Adapter 758924

For conversion between BNC and female banana plug
Applicable for DL750/DL750P, SL1000 & SL1400.

Large Alligator-clip Adapter 758929

Large Alligator-clip Adapter 758929

Rated at 1000V. Attaches to the 758917 test leads. Sold in pairs.
Applicable for DL750/DL750P, SL1000, SL1400.

Safety Terminal Adapter Set 758931

Safety Terminal Adapter Set 758931

Screw-fastened adapters. Two adapters in a set. 1.5 mm Allen Wrench.

B9284LK External Sensor Cable

B9284LK External Sensor Cable

For connection the external input of the WT3000 to the current sensor.
Length: 50cm

Connection Cable 705926

Connection Cable 705926

Applicable for DL850 and WT300 series.

 

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