WT300 SERIES DIGITAL POWER METERS

The WT300 Series Digital Power Meters are the 5th generation of Yokogawa’s highly recognized high performance low cost product group. They offer updated and innovative measurement functions which will benefit the engineer with basic electrical power measurements. They are the ideal measurement solution for doing Stand-by-Power measurements, Energy Star®, and IEC62301 testing, Battery Charger and other low level power measurements.

What's New: The WT310 is an Accepted Device by Standard Performance Evaluation Corporation (SPEC) used for Power Efficiency Benchmarking!

 

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The WT300 series digital power meters offer users the high performance and reliability customers have come to trust from Yokogawa.

  • Basic accuracy: 0.1% of Reading
  • DC measurement: 0.5 Hz to 100 kHz frequency range
  • Measures all AC and DC parameters
  • Compact design (half-rack size)
  • Standard USB, and GPIB or RS232 Interfaces
  • Low current measurements down to 50 micro-Amps (WT310 only)
  • High current measurements up to 40 Amps RMS (WT310HC only)
  • High-speed data update (up to 10 readings per second)
  • Simultaneous Normal and Harmonic measurements
  • Optional Ethernet interface
  • WTViewerFreePlus Software included
  • Single Phase measurements with the WT310 series
  • Split Phase and Three Phase measurements with the WT300 series
  • The WT300's enhanced specifications and its wide range of functions let you handle all your measurement applications from low-frequency to high-frequency inverters using a single power meter.

    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:

    Integration measurement auto ranging function.

    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.

    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)

    Wide current input range

    • Wide current input ranges: The WT300 series offers a wide range of current inputs from a few mA t
    • Simultaneous measurement of all parameters: The WT300 can measure all DC and AC parameters. The WT300 series can also measure harmonics and perform integration simultaneously without changing the measurement mode.
    • Fast display and data update rate: The fast display and 100 ms maximum data update rate of the WT300 series offers a short tact time in testing procedures. 0.1% of reading + 0.1% of range (50Hz/60Hz)
    • MAX hold function: The maximum values of RMS/PEAK voltage & current active power, reactive power and apparent power can be held.
    • Line filter and frequency filter capability: These filter functions will cut off unnecessary noise & harmonic components for fundamental waveform measurements.
    The WT300 series offers a wide range of communication interfaces such as USB, GP-IB or RS-232 (selectable) and Ethernet (Optional)

    Allows users to have the flexibility to choose according to applications needs. Using the WTViewerFreePlus software to set up all kinds of measurements. Additionally, the numeric values, waveform display, and trend graphs of the measurement data can be displayed and saved.

    Communication Interface

    D/A output for measurement recording

    The D/A option is used to output Voltage, Current, Power, and other measured data for recording to data loggers (+/-5Vdc outputs).

    DA Output

    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

    Testing To International.fw

    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.

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    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

    366924 BNC cable

    366924 BNC cable

    A 1 m long (366924) and

    366925 - BNC cable

    366925 - BNC cable

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

    758917 Measurement lead set

    758917 Measurement lead set

    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.

    758921 Fork terminal adapter

    758921 Fork terminal adapter

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

    758922 Small Alligator-clip Adapter

    758922 Small Alligator-clip Adapter

    Rated at 300 V. Attaches to the 758917 test leads. Sold in pairs.

    758923 Safety Terminal Adapter Set

    758923 Safety Terminal Adapter Set

    Safety Terminal Adapter Set

    758924 Conversion Adapter

    758924 Conversion Adapter

    For conversion between BNC and female banana plug

    758929 Large Alligator-clip Adapter

    758929 Large Alligator-clip Adapter

    Rated at 1000V. Attaches to the 758917 test leads. Sold in pairs.

    758931 Safety Terminal Adapter Set

    758931 Safety Terminal Adapter Set

    Safety Terminal Adapter Set

    B9284LK External Sensor Cable

    B9284LK External Sensor Cable

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

    705926 Connection Cable

    705926 Connection Cable

    Applicable for DL850 and WT300 series.

     

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