Appliances & Lighting

Yokogawa has been providing instrumental service to industry giants as part of our core business since our early beginnings. We continue to provide critical tools such as the WT3000E and the SL1000 and a wide variety of precision power analyzers to industry leaders for use in compliance testing. Yokogawa is dedicated to protecting the global environment. One way we do this is through our partnerships with industry leaders who are also dedicated to the global environment and providing channels for superior energy efficiency. Yokogawa designs products specifically to test such industry standards as Energy Star and UL.

What Is An Electrical Appliance?

An electrical appliance is an electrical device or instrument that performs a specific function for industrial or household use. Appliances can use current electricity and store electricity in batteries to convert it into other forms of energy such as heat, light, and movement.

Uses Of Electrical Appliances

  • Lighting
  • Heating
  • Cooling
  • Mechanical Work
  • Information Processing

In the test of new washing machine, voltage, current, power, and the control signal on the time control panel need to be recorded.


Detailed measurement methods, supply voltage settings, and others are specified for the harmonic/flicker standard test.


Evaluation of high efficiency motors in large air heaters


【search key】 WT1, WT18, WT180, WT3, WT30, WT5, WT50, WT500, WT


Energy consumption in low-power and standby modes is an important issue due to increased awareness that energy resources are becoming limited and demand for energy-saving household electrical appliances continues to grow. IEC62301 Ed2.0 (2011) and EN 50564:2011 define standby mode as the lowest energy consumption of an appliance not performing its main function, when connected to the mains. IEC62301 Ed2.0 (2011) defines test methods and requirements for both the mains supply and the test equipment. It is crucial that design and test engineers choose highly accurate power measurement tools to confirm that their devices meet these requirements.


Measuring efficiency with high precision: simultaneous measurement of input and output

  • IS8000 Integrated Software Platform
  • Measure current waveform using oscilloscope

Observation of Inverter Switching Waveforms


Using the OR trigger and Dual Capture, it is easy to trap and record failure conditions on electrical harnessses (wiring interconnects) over a long duration test.


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.




Measuring Conversion Efficiency of Power Conditioner


Capture and recreate waveforms with a DLM2000 and FG420


Surge Waveform Recording & Power Monitoring

  • Yokogawa WT310 Digital Power Meter
  • Lighting products need to evaluate power parameters, temperature

Evaluation of Wireless Charging System for EV/PHV


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.


Reference equipment for power calibration

Application Note

Evaluation of vacuum cleaner requires to measure distorted waveform.


Evaluating Magnetic Components

  • Power consumption/quality measurements for product design and test
  • Design, compliance, and customer information
  • Best practices
  • Instruments and components

Characteristics of Transient Response from Industrial Robots


One of the main responsibilities of engineers and technicians is data analysis, and this article will show how multi-touch technologies can be used to improve the performance of this and other related tasks.


This white paper describes the WT1600 precision power analyzer, a model that has been discontinued and replaced with the WT1800E. Please visit the WT1800E product page for more information regarding the WT1800E.

We have developed the WT1600, a high-precision, wide-bandwidth power meter. The WT1600 can measure DC and AC signals from 0.5 Hz to 1 MHz with a basic power accuracy of 0.1%. With the maximum of six input elements installed, a single WT1600 can measure the efficiency of a three-phase inverter. In addition to the functions of conventional power meters, it has wider ranges and various functions including waveform display. This paper gives an outline of the WT1600. 


This white paper describes the WT1800, a precision power analyzer that has been replaced by the WT1800E, a unit with numerous improvements including better accuracy. Please visit the WT1800E product page to learn more about the WT1800E.

To keep pace with the increasing speed of switching devices in inverters, Yokogawa has developed the WT1800 precision power analyzer with 10 times faster sampling speed and 5 times wider frequency bandwidth compared with previous models. Its basic accuracy is 0.15% and the frequency bandwidth of voltage and current is 0.1 Hz to 5 MHz (-3 dB, Typical) including the DC component. With up to six inputs, a single WT1800 unit can measure the efficiency of three-phase inverters. In addition, the high-speed data capturing mode allows the WT1800 to measure transient power. This paper describes the high-speed, real-time power measurement technologies underlying these functions.

Product Overviews

    • Yokogawa DLM5000 mixed-signal oscilloscope
    • 4-to-8 channels
    • Easily navigate through a wealth of analysis features 

    The DLM5000HD Series High-Definition Oscilloscope is the latest addition to the Yokogawa Test&Measurement oscilloscope line-up that takes you beyond eight channels.

    Adaptability is key in the development of high-performance and intelligent power semiconductor technologies and mechatronics in modern electric vehicles, motor controls, and energy efficient electronic designs. With up to 16 bits high resolution, best-in-class startup speed, the ability to support measurements up to 16 channels, high noise immunity for harsh environments, and more, the four-to-eight channel DLM5000HD Series enables easy touch navigation through a wealth of analysis features.


    Introducing the new Yokogawa Test&Measurement AQ6380 Optical Spectrum Analyzer. This new OSA includes many sought-after features including:

    • An unprecedented 5 pm wavelength resolution
    • ±5 pm wavelength accuracy
    • 1200 nm to 1650 nm wavelength range
    • 65 dB wide close-in dynamic range
    • 80 dB stray light suppression
    • Automated wavelength calibration
    • Gas purging
    • DUT-oriented interface and test apps
    • Backward-compatible remote interface
    • 10.4in intuitive touchscreen
    • Up to 20x faster measurement
    • Remote operation capabilities


    The DLM3000 Mixed Signal Oscilloscopes Automotive Serial Bus features can display up to four simultaneous serial buses and decoded data.


    The Yokogawa DLM3000 Mixed Signal Oscilloscopes, oscilloscope features a brand-new computing platform and available power supply analysis functions. 

    • Yokogawa DL350 Scopecorder
    • Video: Features and Applications
    • Related Industries, Products, and Solutions
    • Values and key features of Yokogawa’s DL850EV ScopeCorder
    • Capture high-speed transient events and long-run trends
    • Widely used in automotive, power electric, mechatronics



    The Power Consumption Measuring Software from Yokogawa Test&Measurement provides a comprehensive solution for standby power testing and meets the requirements of:

    • IEC 62301:2011 Ed2.0 – Household electrical appliances (measurement of standby power)
    • EN 50564:2011 – Electrical and electronic household and office equipment (measurement of low power consumption)

    In this video, application engineer Kourtney Morrison demonstrates how to use the software for easy standby power measurement.


    A demonstration reading a 4 - 20 mA transducer into an analog channel on the Portable DL350 ScopeCorder.


    This video demonstrates how to measure transient phenomena on power signals using the Yokogawa Test&Measurement PX8000 Precision Power Scope.

    In several applications, especially those testing AC power to a standard such as IEC61000-3-11, the voltage and current signals must be monitored to confirm there are no major dips and/or swells in the signal. This can be done with instruments capable of reporting rms values, including power analyzers, traditional oscilloscopes, and some data acquisition systems.

    To test to a standard, however, the instrument must have an accuracy spec that is traceable back to a national standard of calibration such as ISO17025 or NIST.

    • Using the portable DL350 ScopeCorder Memory Recorder Mode Easy Setup
    • Combined with 16-channel thermocouple input
    • Record hours, days, or weeks of data

    Looking for a turnkey high-speed data transfer solution with better bandwidth and minimal manual overhead?

    The 10Gb Ethernet option on the Yokogawa Test&Measurement DL950 ScopeCorder fits that very role and makes capturing and recording high-speed data seamless and convenient.

    Record data at 50 times the speeds of traditional Ethernet and USB connections and automatically transfer data to your PC in a single step using the IS8000 Integrated Software Platform.


    CAN Bus communication is widely used in the transportation industry where reliable transmission of data is paramount. Monitoring and recording these communications can be easier when using the proper instruments. In this video, a Yokogawa Test&Measurement Applications Engineer demonstrates how to setup the DL950 ScopeCorder to read the temperature of a motor drive alongside its voltage and current output.


    Having multiple memory options allows engineering groups to optimize how data is stored, no matter if you need to record for a long time at slower sampling rates, do a fast capture at high sampling rates, or anything in between.

    The Yokogawa Test&Measurement DL950 ScopeCorder operates as an oscilloscope and incorporates the ability to record data for long periods of time like a data acquisition recorder. There are four memory types on the DL950 ScopeCorder: internal memory, solid state drive, flash memory, and PC storage through the IS8000 Integrated Test and Measurement Software Platform. This videos talks about the advantages of each of these and how to pick the best data recording method for you.



    While DC power measurements are relatively straight forward, AC power measurements that include distorted waveforms, varying power factors, and multiple phases can add complexity to an otherwise simple measurement. During this webinar, we cover multiple fundamentals of power measurement.

    Key topics include:

    • Multi-phase measurements
    • Measurement techniques
    • Measurement applications
    • Real-world examples and more

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