Yokogawa's WT3000 power analyzer boasts 0.02 percent accuracy of voltage, current and power measurements on motors, inverters, power supplies, lighting systems, and other electrical devices. With a frequency range from dc to 1 MHz, the WT3000 can measure harmonics, RMS voltage and current, active power, and current frequency. For a 10 kHz signal, you can take engineering measurements of amplitudes out to the 50th harmonic.
The WT3000 performs harmonic analysis through real-time FFT calculations. Doing so enables engineers to see a product's harmonic emissions on the display as they happen. And that capability lets engineers measure a power signal's parametrics and harmonics simultaneously. The WT3000 also measures total harmonic distortion. Analog outputs let you transfer your measurements to oscillographic recorders and other data-acquisition devices.
The WT3000 consists of a mainframe and up to four input modules. The 8.4-inch liquid crystal display and the range indicator LEDs ensure readability. A serial (RS-232) port, Ethernet port, and USB port are available as options. For three-phase measurements, there are units with three inputs. You can use the fourth input for dc measurements. Prices start at $8,950 for a single-input model. Add $3,000 for each additional input. http://rbi.ims.ca/4389-513.
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