Corporate Marketing
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Telephone: 770-254-0400
Fax: 678-423-2601
PRESS RELEASE
FOR IMMEDIATE RELEASE
Date: January 15, 2014
Contact: info@us.yokogawa.com
Contact Phone: 1-800-888-6400
Release #: 1091
Yokogawa launches the world’s first Precision Power Scope
-Innovative PX8000 combines oscilloscope and power-analyzer
technologies to offer new dimension in time-based power
measurements-
Yokogawa has combined its world-leading expertise in power measurement and its long
heritage in oscilloscope design to create the world’s first Precision Power Scope: the Model
PX8000.
The PX8000 brings oscilloscope-style, time-based 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 12-bit 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 fine-tune 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 three-phase electrical
systems.
In addition to delivering precision power measurement to give true insight into energy
consumption and performance, the PX8000 incorporates a number of innovative features that
support the crucial measurement and analysis of transient power profiles. It provides
simultaneous voltage and current multiplication to give real-time power sampling, supporting
both transient measurement (as standard) and numerical values averaged across the sample
period. Up to 16 different waveforms – including voltage, current and power – can be displayed
side-by-side, giving engineers instant “snapshots” of performance.
The PX8000 is powered by Yokogawa’s isoPRO™ technology, which offers industry-leading
isolation performance at the highest speeds. isoPRO core technology, designed with energy-
saving applications in mind, delivers the performance needed to evaluate high-efficiency
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
cycle-by -cycle 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
de-skewing 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.
Applications for the PX8000 cover everything from sustainable power to advanced robotics. Any
situation where power consumption is at a premium – which means almost anywhere power is
consumed – can benefit from the introduction of the PX8000’s precision measurement and