Standard FeaturesOptional Features

1. External Media Slot
2. Element Setting
3. U/I range display
4. Display Settings
5. Measurement item selection
6. Integration Settings
7. Data Saving
8. Built-in Printer (/B5 Option)

Current Sensor Power (/PD2 Option)

DETAILS

Provides Complete System Measurement Needs

• Simultaneous Electrical Power Measurements of up to 6 Voltages and 6 Currents at 2MS/s (16 bits)
• Mechanical parameters such as Rotational Speed & Direction, Torque, Slip, Electrical Angle, Mechanical Power, and Motor efficiency

 Guaranteed Accuracy

• Basic Power Accuracy of 0.05% of reading +/- 0.05% of range, guaranteed from 1% to 110% of the selected range
• Direct Inputs for Voltage & Current, plus an External Input for Sensor connections

Independent Range Configuration with Selective Auto-ranging for repetitive production testing

No Unwanted Harmonics

• Analyze up to 500th order of Harmonics for 50/60Hz fundamental signals
• Multiple harmonic parameters such as THD, HDF, THF, and Impedance
• Dual Harmonic feature to analyze both input and output of inverters
• Basic power accuracy:
  • 05% of reading
  • 05% or range
• Up to 6 input channels at 2 MS/s (16 bits)

6 inputs on a high-resolution display

Make simultaneous measurements on up to 6 inputs at 2 MS/s (16 bits). The high-resolution 8.4-inch XGA display of the WT1800E Yogokawa  allows split screen viewing of up to 6 waveforms and can display up to 12 pages of diverse measurement parameters making it ideal for efficiency tests of inverter-driven motors, renewable energy technologies, and traction applications like pumps, fans, and hybrid/electric vehicles. The unit can also display measurements in vector format or trending in time.

Guaranteed accuracy across a wide range

Measure accurately at a wide range of voltage, current, and frequency conditions. The basic power accuracy of the WT1800E Yogokawa power analyzer is between 1% to 110% of the selected voltage and current range. This equates to voltages from 15 mV to 1100 V RMS and currents from 0.1 mA to 5.5 A RMS (for a 5 A input element) and 10 mA to 55 A RMS (for a 50 A input element). The unit is also accurate during large phase shifts and high frequencies thanks to the minimized influence of the low power factor error (±0.07% of apparent power).

Range configuration

Track signal changes faster by eliminating unnecessary range changes. The WT1800E’s range configuration function allows users to select input ranges based on their specific use cases so that optimal range settings are achieved quicker. This reduces the time during repetitive production tests, such as setting to OFF, 100 V, OFF, and so on, which are performed frequently on the production line.

Harmonic analysis

Analyze harmonics up to the 500th order for a 50/60 Hz fundamental even at a data update interval of 50 milliseconds. The WT1800E features two options for analyzing harmonics in addition to power parameters.

• Harmonic measurement mode (/G5 option) for fundamental wave, harmonic components, and total harmonic distortion (THD)
• Dual Harmonic option (/G6 option) for side-by-side measurement of harmonics on two different sources for example input and output of inverters, variable speed motors, lighting ballasts, UPS, etc.

Power integration and auto ranging

• Measure energy bought/sold grid connections or charged/discharged in batteries. The WT1800E’s Power integration function integrates instantaneous values for both positive and negative readings. It also measures total energy (Wh) and current (Ah) when load conditions vary widely such as in devices transitioning from standby to operation mode. Should an input signal start to fall out of the expected range, this function can automatically adjust the range while continuing to integrate the measured values.

High-speed data capture

The high-speed data capturing function can measure Sigma-Urms, Sigma-Irms, and Sigma-P from DC signal and three phase devices every 5 ms when External Synchronization is OFF. It can also update at 1 ms to 100 ms when External Synchronization is ON depending on the frequency of the clock signal.

Flexible & automatic data updates

Manually or automatically set measurement intervals. The WT1800E Yogokawa Power Analyzer offers 9 data update intervals between 50 ms to 20 s but can also follow fluctuating input frequencies by changing the data update rate automatically. This is useful when measuring devices like motors whose input signal frequency varies with RPM.

DC power supply for AC/DC current sensors (/PD2 option)

• The WT1800E yogokawa power analyzer can be equipped with a DC power supply for the CT series of AC/DC current sensors. By using dedicated connection cables and shunt resistors, the WT1800E can measure large currents. Improved S/N ratio and noise immunity is achieved by connecting the sensors in this way.
• /EX1 to /EX6 option must be installed in the WT1800E to be able to use the Shunt Resistor Box.

Motor evaluation function

Measure more than just electrical parameters. The motor evaluation function enables the measurement of rotation speed and direction, torque, mechanical power, synchronous speed, slip, electrical angle, motor efficiency, and total system efficiency from the analog or pulse outputs of rotation and torque sensors.

761941 WTViewerE Application Software for Yokogawa Power Analyzer WT3000E/ WT3000/ WT1800E/ WT1800/ WT500/ WT300E/ WT300

WTViewerE software enables PC connectivity for Yokogawa power analyzer such as the WT3000E, WT1800E, WT500, and WT300E through Ethernet, USB, GPIB, or RS232. This connectivity allows users to easily control, monitor, collect, analyze, and save measurements remotely.

WTViewerEfree application software

• Easily view, control, and download measurements from your PC. The WTViewerEfree is free software that connects the WT1800E Yogokawa Power Analyzer to a PC via a communications interface making numeric, waveform, trend, and harmonic data easily accessible via PC.

User-defined events and computations

• The event trigger function of the Yokogawa Power Analyzer WT1800E allows users to set limits for the capture of readings that fall into or out of a specific range of power, current or other parameters. Data that meets the trigger conditions are stored, printed, saved to a USB memory device, etc. Users can also define and use up to 20 expressions for custom calculations.

Two types of Input Elements of  Yogokawa Power Analyzer

Basic Power Accuracy: ±(0.05% of reading + 0.05% of range)*1
Measurement Bandwidth: DC, 0.1 Hz to 1 MHz
Low Power Factor Error: Power factor influence when cosø = 0

1. 07% of S
   S is reading the value of apparent power
   ø is the phase angle between voltage and current

Temperature range: 23 ±5˚C
Current Range:

• Direct Input: 1/2/5/10/20/50 A^*2
  • 10/20/50/100/200/500 mA, 1/2/5 A^*2(50 A and 5 A input elements can be installed together)
• External Input: 50/100/200/500 mV, 1/2/5/10 V^*2

Voltage Range: 1.5/3/6/10/15/30/60/100/150/300/600/1000 V^*2
Effective input range: 1% to 110%
Data Update Interval: 50 ms to 20 s or Auto

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CW500 – Confirms to IEC61000-4-30 Class S.

Portable Yokogawa Power Analyzer CW500, Current Measurements with clamp-on probes, Navigation screens, Bluetooth, and SD cards for communication and data logging.

Applications: Utilities, Substations containing large arrays of transformers, generators, and electrical distribution networks. Measure Voltage Sags, Swells and dips, Flicker, Inrush current, and Demand changes.

CW500 power quality monitor:

Basic Features:

Data Loggers from single phase two wire to three phases four-wire systems, All Electrical Parameters, With 50^th Orders of Harmonics, Small form factor, and battery inputs allow the user to take this unit anywhere, anytime, Use the free yokogawa power analyzer Quality CW500 viewer to connect remotely to the unit to log data or view events in real-time,

• Quickly and easily shift between setting up the unit or viewing logged variables and waveforms
• Supports USB and Bluetooth
• Set a predetermined record length or schedule or a start time and duration for logging data

DETAILS

Main Features

• Power Measurement and Logging
• Power Quality Measurement
• User Support
• Analysis of Data and Report Generation

Power Measuring and Logging

• Simultaneously measures 3 CH Voltage input, 4 CH current clamp probe input, and 2 CH DCV input.
• Instantaneous/Average/Maximum/Minimum value list or trend graph screen of Voltage/ Current/Power/Power factor/Phase Angle/Phase Advanced Capacitance Calculation.
• Integration Value of Active/ Reactive/Apparent Energy is each displayed consumption and generation.
• Demand monitoring displays screens of present power consumption compared to aimed demand power values

Quick Start Guide Function:

• The Quick Start Guide Function supports correct wiring and setting before measuring.
• The Quick Start Guide Function automatically recognizes the type of current clamp probe.

Vector Display:

• The Vector Display indicates Voltage and Current phase differences and values between input channels of voltage and current.
• The Vector Display checks whether the wiring is correct or not.

Power Quality Measuring

Measure Temporary Malfunctions of the Power Line

• The Yokogwa Power Analyzer Quality CW500 captures temporary malfunction phenomena of the power line that can cause malfunction or destruction of devices due to voltage swell, voltage dip, interruption, the transient voltage over, and inrush current by using a high sampling rate of 24 µs and RUS calculation.
• Event data contains the type of malfunction, occurred time or occurrence finish time, measured value, and waveform of voltage and current of all channels for approx. 200 ms period.
• This measurement method conforms to IEC standard  61000- 4-30 Class S

Measure Continuous Malfunction of the Power Line

Harmonics

• Measure and display graphs and lists of up to the 50th  Harmonic components of voltage, current, and power for each phase and total.

Flicker

• Measures 1-minute flicker (Pst, 1 min), short flicker, (Pst), and long flicker (Plt).

Unbalance rate

• Displays voltage and current unbalance rate on 3-phase wiring.

Portable Yokogawa Power Analyzer Quality CW500

Viewer (Included PC software)

• Automatically display the graphical and report data by clicking on the file on the PC display.
• Manage multiple settings of the unit.
• Measure in real-time using USB communication.

Types of data

• Integrated power data, power quality event data, main unit setting data, and screen capture data

More Yokogawa Power Analyzer

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The WT500 Yokogawa Power Analyzer can be used for single- as well as three-phase power measurements. It includes a color TFT display and USB interface for communications and memory. having basic power accuracy of 0.1%, maximum inputs of 1000 V, 40 A, and a measurement bandwidth of DC to 100 kHz.

Basic Features

• Measurement of DC and AC signals simultaneously and calculate input-to-output efficiency
• Separate integration functions for charge/discharge and bought/sold power.
• Can Save measured data directly to USB memory.
• Easy setup with cursor keys. measurement of normal data and harmonic data with the harmonic measurement, /G5 option simultaneously.
• WT500 Yokogawa power Analyzer series for power evaluation of energy-saving equipment.

Details of WT500 Yokogawa Power Analyzer

Newly Designed Architecture

Intuitive control by using cursor keys in four different directions.
To reduce setting errors, menus display settings in order of relative importance in order.

Measured Value Direct Save Function

Two USB ports for peripherals are installed for direct data saving (up to 1 G byte) in USB memory at the shortest intervals.
The saved data can be opened in applications such as Excel.

WT500 Yokogawa Power Analyzer A Variety of Display Formats

In addition to numerical data, the WT500 Yokogawa Power Analyzer can display input signal waveforms and trends (time variation of numerical data).
Bar graph display and vector display are also available with the harmonic measurement (/G5) option.

*1 Waveform of up to approximately 5kHz can be displayed.
*2 Excludes single-phase models.

A split screen display for numerical values and waveforms is not available.

Simple Setting and Display of Efficiency

Two efficiency calculations can be set by selecting input elements or output elements from a list.

USB Memory Storage Function

Only necessary items within the measured data like the voltage, current, and power can be saved in USB memory in binary or CSV format (up to 1 GB).

Files saved in CSV format can be opened in general-purpose applications such as Excel to allow displaying of data in graphs.

Variety of Integration Functions

In addition to integration functions of active power (WP), current (q), reactive power (WQ), and apparent power (WS), a new feature provides a measurement of bought and sold watt-hours. Also, average active power can be calculated over an integration interval.
This feature is useful for evaluating the power consumed by intermittent-control instruments in which the power value fluctuates. Average active power is calculated by using user-defined settings.

GP-IB Communication (/C1)

GP-IB communication enables you to control the WT500 or transfer data from a PC.

Ethernet Communication (/C7)

Data can be transferred via Ethernet* communication.
It enables file transfers using an FTP server.

* 100BASE-TX

External Current Sensor Input (/EX1, /EX2, /EX3)

Current can be measured by using current clamps without disconnecting power supply wiring (voltage output type). By setting an external current sensor conversion ratio, it can support various types of current clamp-on probes.

VGA Output (/V1)

By connecting to a monitor, you can create large displays of numerical values and waveforms. This function is convenient for simultaneously confirming data on multiple monitors, or checking data remotely.

Harmonic Measurement (/G5)

This function enables simultaneous measurement of normal and harmonic data. Harmonic components of up to the 50th order can be measured. With the Yokogawa Power Analyzer WT500 you can simultaneously confirm voltage, current, and the distortion factor (THD) as well as measure the distortion factor without switching modes.

Delta Computation (/DT)

This function allows you to calculate individual phase voltages and phase currents from the line voltages and phase currents measured in a three-phase, three-wire (3P3W) system. The phase voltage can be calculated from the line voltage measured with the three-phase, three-wire (3V3A) method. This is useful when you want to determine the phase voltage in a DUT with no neutral line by using the three-phase, three-wire (3V3A) method.

Note: This function cannot be installed on products with only one element.

Added Frequency Measurement (/FQ)

In addition to the standard two channels of frequency measurement, an option is available for frequency measurement on all channels. This option provides frequency measurement of voltage and current on all channels with input elements 1 through 3 installed. This is necessary when you want to measure voltage and current frequency from the instrument’s I/O as well as voltage and current frequencies of multiple items under test at the same time.

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WT310(1ch),WT310HC(1ch,MAX 40A),WT332(2ch)/WT333(3ch) Yokogawa Digital Power Meters

Important Features of WT310 and WT330 Series Yokogawa Digital Power Meters

1. High-speed simultaneous measurement

Ordinary power meters need to switch measurement modes depending on what is being measured, from voltage, current, and
power to items such as integral power consumption and harmonics analysis that require calculation. The Yokogawa Digital Power  Meters WT310 and WT330 series can measure all these in just a single measurement mode. Moreover, the short measurement interval of just 100 ms improves measurement efficiency.

2. Automatic range switching during integral power consumption measurement – an industry first

When measuring integral power consumption, two power meters are usually needed, one for higher loads and the other for lower loads. For the first time in this industry, an automatic range switching function is available that allows a single meter to continuously measure both load ranges. An additional feature of this function is range skipping. Rather than changing one step at a time, the device can change directly to the
target range. The Yokogawa Digital power Meters WT310 and WT330 series thus reduce switching time, improving both operational efficiency and measurement accuracy.

3. PC software

Bundled together with the WT310 and WT330 series is WTViewerFreePlus, a PC utility program that can be used to configure the instrument and to display and record measurement data. This includes a communication function that automatically searches for instruments that are connected to the PC.

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