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.

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

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Evaluation of high efficiency motors in large air heaters

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

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Observation of Inverter Switching Waveforms

Application Note
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Harmonic measurements

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Measuring Conversion Efficiency of Power Conditioner

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Surge Waveform Recording & Power Monitoring

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Evaluation of Wireless Charging System for EV/PHV

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Reference equipment for power calibration

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Evaluating Magnetic Components

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Characteristics of Transient Response from Industrial Robots

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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.

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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.

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Conventionally, measurement of the harmonic distortion required special modes or lengthy data acquisition times which impacted the processing time on manufacturing lines.

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Capture and recreate waveforms with a DLM2000 and FG420

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Lighting products need to evaluate not only power parameters but also temperature.

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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.

Application Note
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Evaluation of vacuum cleaner requires to measure distorted waveform.

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If a product uses power, then power consumption and power quality measurements must be made as part of product design and test. These measurements are essential to optimize product design, comply with standards and provide nameplate information to customers.
This article will discuss best practices for making these measurements, starting with power measurement basics and proceeding to the types of instruments and associated components typically used to make measurements. The article will conclude with real-world examples, which apply the information imparted earlier in the article to solve practical measurement problems. Although most of us have been exposed to basic power measurement equations, a primer is helpful to summarize this information and to show how it applies to product design and test.

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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.

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In this application note you will learn when and how to use different methods to connect a current transformer to a power analyzer.

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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.

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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. 

How-tos

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    Using the DL350 Memory Recorder Mode Easy Setup, combined with a 16-channel thermocouple input, it's easy to record hours, days, or weeks of data with a few simple settings. 

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    In this video we review the major features of the DL350 showcasing its portability, functionality, and operability. This device features battery power, 18 signal conditioning input modules, and touchscreen access to enhanced triggers, math, and analysis.

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