 YOKOGAWA
PX8000
Precision Power Scope – Highaccuracy timebased power measurement
Precision power measurement gives true insights into energy consumption and performance.
— Watch the PX8000 Video — 
Features
 Simultaneous power calculation:
Provides simultaneous voltage and current multiplication to give realtime power sampling.  Cyclebycycle power trend measurement:
Trend measurements between waveforms can be calculated by mathematical functions (up to 4 million points).  Supports the capture of power waveforms over specific periods of time
 XY display and phase analysis:
Supports XY axis displays as standard as well as, lissajous waveforms of input and output for phase analysis.
 Capturing sudden or irregular phenomena:
A alwaysactive History function automatically records up to 1,000 historical waveforms  Longperiod data capture and analysis
 FFT analysis
 Detailed transient analysis
 Simultaneous harmonic measurement:
Simultaneously measure the harmonic components of voltage and current waves as well as the harmonic distortion factor.
 Multifunction snapshots:
Up to 16 different waveforms inluding voltage, current and power, can be displayed sidebyside, giving engineers instant snapshots of performance.  Trend calculation:
Builtin functions for the direct calculation of variables, such as root mean square (RMS) and mean power values, to enable the identification of cyclebycycle trends.  Deskew compensation:
Automatic deskewing funtion eliminates offsets between current and voltage signals that may be caused by sensor or input characteristics.
Options
 Vector Bar Graph Display
 Builtin Printer
 Probe Power Output
 Time Sync Signal Input
 Harmonic analysis function
Applications
 Precision power measurement of energy consumption and the integration of electronics into powerbased systems
 Sustainable power
 Inverter and motor testing
 Reactor loss measurement of inverter boost circuits
 Transient responses of industrial robots
 Wireless charger efficiency measurement, and voltage and power measurements in electricity distribution systems
Description
Traditional power measurement instruments cannot provide accurate time measurements; oscilloscopes are not designed to measure power. The PX8000 is the world’s first precision power scope, bringing oscilloscopestyle timebased measurement to the world of power measurement. It can capture voltage and current waveforms precisely, opening up applications and solutions for a huge variety of emerging power measurement problems.
The new instrument has 12bit resolution with 100 MS/s sampling and 20MHz bandwidth. This means that the PX8000 can be used for accurate measurement of inverter pulse shapes, which can then be used to finetune inverter efficiency. A choice of input modules covers voltage, current and sensor measurements at voltages up to 1000 V RMS and currents up to 5 A RMS, with a basic accuracy of ±0.1%. Higher currents can be measured with external current sensors. The PX8000 can be configured to evaluate single phase and threephase electrical systems.
The PX8000 is powered by Yokogawa’s isoPRO™ technology, which offers industryleading isolation performance at the highest speeds. isoPRO core technology, designed with energysaving applications in mind, delivers the performance needed to evaluate highefficiency inverters that operate at high voltages, large currents and high frequency.
The instrument also supports the capture of power waveforms over specific periods of time and cyclebycycle trends through the definition of start and stop “cursors”. This is particularly useful for examining transient phenomena and in the design of periodically controlled equipment. To ensure that such equipment complies with energy standards, it is vital to measure power consumption across a range of different modes from “sleep” to full activity – and all the transient states in between.
A variety of functions including arithmetical calculations, time shifting and Fast Fourier Transforms enables users to display waveforms with offsets and skew corrections. An automatic deskewing function eliminates offsets between current and voltage signals that may be caused by sensor or input characteristics. Users can also define their own computations via equations that combine differentials, integrals, digital filters and a wealth of other functions.
The PX8000 makes it possible to simultaneously measure the harmonic components of voltage and current waveforms as well as the harmonic distortion factor. Harmonic measurements take place in parallel with conventional voltage and current measurements. Harmonics up to the 500th order of the fundamental can be measured.
