PRECISION POWER SCOPE PX8000

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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 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. 

Localized language brochures are available below in the Specifications tab. 
Yokogawa
What's New

- Released dedicated software, PowerViewerPlus
- Released firmware Version 2.03

 

 

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Transient power measurements and analysis

The PX8000 has a number of innovative features that support the crucial measurement and analysis of transient power profiles. 

Simultaneous power calculation Provides simultaneous voltage and current multiplication to give real-time power sampling.
Cycle-by-cycle power trend measurement Trend measurements between waveforms can be calculated by mathematical functions (up to four million points). 
Specific time-period measurement New Supports the capture of power parameters over specific periods of time through the definition of start and stop "cursors". 
Specified time-period waveform measurement Supports the capture of waveform parameters over specific periods of time through the definition of start and stop "cursors".
X-Y display and phase analysis Supports X-Y axis displays as standard. It can also display lissajous waveforms of input and output for phase analysis.
Capturing sudden or irregular phenomena An always-active History function automatically records up to 1,000 historical waveforms. 
Long-period data capture and analysis An accompanying PC application called PowerViewerPlus can be used to capture waveform data for further analysis. 
FFT analysis Features arithmetical, time-shift, FFT and other computations that enable users to display waveforms with offsets and skew corrections. 
Simultaneous harmonic measurement Makes it possible to simultaneously measure the harmonic components of voltage and current waves as well as the harmonic distortion factor. 
Multifunction snapshots Up to 16 different waveforms- including voltage, current and power, can be displayed side-by-side, giving engineers instant snapshots of performance. 
Detailed transient analysis Supports the measurement of all power waveform parameters between precisely defined start and stop cursors.
Trend calculation Built-in functions for the direct calculation of variables, such as root mean square (RMS) and mean power values, to enable the identification of cycle-by-cycle trends.
De-skew compensation Automatic de-skewing function eliminates offsets between current and voltage signals that may be caused by sensor or input characteristics.
Powered by isoPRO technology Offers industry-leading isolation performance at the highest speeds. Delivers the performance needed to develop high-efficiency inverters that operate at high voltages, large currents, and high frequency. 

The PX8000 is an immensely versatile instrument, unlocking precision power measurement capabilities for researchers working on everything from renewable power to advanced robotics. 

Inverter and motor testing

Electric and hybrid vehicles have many electrical and mechanical components, and overall performance evaluation requires measuring the efficiency of both. The PX8000's flexibility, accuracy and wide bandwidth make it ideal for drawing together the range of power readings needed to optimize the efficiency of boost circuits and inverters- two key elements in overall electric vehicle performance.

Wide bandwidth With a 12-bit resolution, 100 MS/s sampling, and 20MH bandwidth, the PX8000 can be used for accurate measurement of inverter pulse shaped, which can then be used to fine-tune inverter efficiency.
Transient measurement by cycle-by-cycle trend The ability to analyze cycle-by-cycle trends makes it ideal for the measurement of transient effects. When the load changes rapidly, engineers can gain insights that will enable them to improve the control of the inverter.
Harmonic and FFT analysis With both harmonic and FFT measurement capabilities, the PX8000 can measure fundamental waveforms from 20Hz to 6.4kHz. This is particularly useful for analyzing higher harmonic component and causes of noise in electromechanical systems.
Offset cancels by individual NULL function A common problem when testing inverter motors is the presence of ambient noise that can mean test values are nonzero even before testing begins. The PX8000's offset capabilities mean such effects can be nullified and specific inputs can be isolated for testing and analysis. 

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Reactor loss measurement of inverter boost circuits

A reactor is used to filter out noise and boost voltage levels prior to the use of an inverter. It consists of an electromagnetic material core and a coil. A main focus for electrical engineers is to reduce power loss across the total inverter system, and reactor performance is of particular interest. There are two potential evaluation methods: direct loss measurement of the reactor and iron loss measurement. The PX8000 supports either methodology because it can accommodate both high frequency measurement and low-power-factor conditions. 

Low-power-factor measurement Higher sampling rates and broad bandwidth make the PX8000 particularly useful for testing devices, such as transformers and reactors that have lower power factors. It is particularly important to measure the precise power consumption of such devices at high frequency.
De-skew functionality To analyze power consumption in low-power-factor devices it is particularly important to minimize any time differences between voltage and current caused by sensor input characteristics. The PX8000 provides precise de-skew adjustment to compensate for this time difference. 
Core loss measurement under high frequency Analyzing reactor core loss is an example of how the PX8000's user-defined functions can be utilized to provide an instant analysis of system performance. In the example below, core loss is calculated based on primary coil current and secondary coil voltage, while magnetic flux density (B) and magnetic field (H) are calculated by factoring in input frequency, cross-sectional area and other parameters. All values can be displayed directly by the PX8000. 

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Wireless charger efficiency measurement

The development of wireless charging technology for mobile devices like smartphones and tablet devices is a focus for research. Automotive manufacturers are looking into the possibility of charging electric vehicles wirelessly. Wireless charging depends on two electromagnetic coils being configured to support particular frequency profiles. Efficient power transfer and the prevention of power loss are naturally particularly important. The PX8000 is ideally suited for measuring such systems because of its ability to operate at high frequencies and low power factors.

Wireless charger efficiency evaluation To evaluate the efficiency of wireless transfer, at least three power measurement elements are required. The PX8000, with its four input channels, can analyze the performance of the whole system simultaneously.
Low-power-factor device measurement Higher sampling rates and broad bandwidth make it ideally suited for wireless power transfer systems. The PX8000 supports 12-bit resolution, sample rates of up to 100MS/s and a 20MHz bandwidth. The PX8000 supports the measurement of low-power-factor systems operating at very high frequencies.

De-skew functionality Because the PX8000 provides a de-skew function, differences between voltage and current that are introduced by sensor and input characteristics can be compensated for and eliminated from the analysis of low-power-factor systems. 

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Power distribution

Power distribution systems have to maintain constant voltage and constant power during load switching or in the case of a short circuit. Distribution protectors or circuit breakers for three-phase electrical systems must therefore be tested at transient voltage and power levels. The PX8000 can capture fluctuation voltage and current waveform, calculate power parameters (including voltage and current values), determine an average over a specified period and display all values.


Simultaneous three-phase data capture To evaluate three-phase electrical systems, at least three power measurement inputs are required. The PX8000 has up to four inputs and enables the simultaneous capture and display of voltage and current across all three phases.
Specific time-period measurement For a true evaluation of distribution protection, it is necessary to measure a full cycle of voltage current and power values half a cycle after the recovery from a short circuit. The PX8000 can easily be set up to focus on such a specific period.
Harmonic and FFT analysis The PX8000 has capabilities for both harmonic measurement and FFT for frequency analysis. The harmonic function can measure fundamental frequencies from 20Hz to 6.4kHz, and FFT has 1k to 100k points calculation across two channels. Such measurements are vital for identifying harmonic currents and identifying sources of noises. 

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Transient responses of industrial robots

To evaluate motor-driven robots, power consumption of all motors and controllers are measured throughout all operational speeds and action patterns. Design engineers need to measure inrush voltage, current and power over the pattern of repeated actions. Efficiency is calculated by comparing mechanical output with input power. During actual operating conditions, the time to accelerate and decelerate such motors can range from several hundred milliseconds to several seconds. As a PWM-driven motor rotates from the reset position to the top speed, the drive frequency from the rest position to the top speed, the drive frequency changes from DC to several hundred Hz. The PX8000 gives design engineers insight into power consumption and efficiency throughout a robot's operational performance. 

Specific time-period analysis Supports the measurement of waveform data between specific Start/Stop cursors. Combined with its multi-channel capabilities and its Long memory and History functions, this makes the PX8000 particularly useful in rating a robot's operational power consumption. 
Efficiency measurement of boosters, inverters and motors A single PX8000 unit can measure both the input/output power of inverters and the mechanical output of a motor. By installing three power units and one AUX module, the PX8000 can be configured to provide an instantaneous measure of component efficiency.

Transient measurement by trend computation With its instantaneous power calculations, the PX8000 is ideal for evaluation and optimizing transient effects. Its cycle-by-cycle trend analysis provides further insights into this crucial area of robotics engineering.

Longer time-period measurement To analyze some robotic operations, it may be necessary to perform cycle-by-cycle trend analysis over a long period of time. The PowerViewerPlus software extends this mathematical capability to enable deep insights to be obtained from the data.

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Long phenomena capture

The large internal memory of up to 100M Points enable long term measurements to be made at high and appropriate sample rates. 

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1 Video Out Video signal output for enhanced display on analog RGB displays
2 GP-IB General purpose interface bus
3 IRIG Synchronize multiple instruments via an external time source (optional)
4 EXT I/O The PX8000 can be used to send a GO/NO-GO signal based on set conditions; equally external signals can be used to trigger measurement and analysis
5 SD card slot SD- and SDHC-compliant
6 USB-PC Enables control from a PC
7 USB For connection to a range of peripherals including storage, keyboard and mouse
8 Ethernet 1000BASE-T comes as standard
9 TRIGGER IN External trigger input
10 TRIGGER OUT External trigger output
11 EXT CLK IN Sampling can be timed to an external signal (up to 9.5 MHz)

 


Name Description File Type  
Bulletin PX8000-01EN English version External Link Download
PX8000 Bulletin (German) German version pdf icon
1.31 MB
Download
PX8000 Bulletin (Spanish) Spanish version pdf icon
1.43 MB
Download
PX8000 Bulletin (Italian) Italian version pdf icon
1.45 MB
Download
Bulletin PX8000-02EN English version External Link Download
LF PX8000-01EN English version External Link Download
Name Description  
LabVIEW Drivers for PX8000 LabVIEW drivers for PX8000 y-Link
PowerViewerPlus 760881 for PX8000 Dedicated software 760881 PowerViewrPlus is released in order to support high frequency and transient power measurement of electric energy saving equipment. This software enables measured waveform and numeric data transfer to a personal computer and realizes smooth calculation and analysis. Learn More
PX8000 Sample Programs These are sample programs of Visual Basic, Basic net and C# for Communication interface GP-IB, Ethernet and USB for PX8000. y-Link

100:1 Isolated Probe 701947

100:1 Isolated Probe 701947

Passive Probe, 3540Vp-CAT I, 1000Vp-CAT II, 200MHz, 100:1, 100MΩ, 1.5m, 'Isolated Probe'  'Iso-Probe'

1:1 BNC safety adapter lead 701901

1:1 BNC safety adapter lead 701901

1000 Vrms-CAT II, 1.8 m long
Safety BNC(male) to safety banana(female) use in combination with 701959, 701954, 758921, 758922 or 758929.

Alligator Clip (dolphin type) 701954

Alligator Clip (dolphin type) 701954

Set contains one black and one red clip.
1000 Vrms-CAT II.

Auxiliary Module 760851

Auxiliary Module 760851

Sensor and voltage measurement module (up to three modules can be installed) Auxiliary (AUX) module

B9284LK External Sensor Cable

B9284LK External Sensor Cable

For connection the external input of the WT3000 to the current sensor.
Length: 50cm

B9988AE Printer paper

B9988AE Printer paper

Quality paper for the DLM2000/DLM4000/DL850/DL6000/DL9000 and DL750

BNC Cable 366924

BNC Cable 366924

BNC-BNC 1m. For connection to simultaneously measurement with 2 units, or for input external trigger signal. 

BNC cable 366925

BNC cable 366925

BNC-BNC 2m. For connection to simultaneously measurement with 2 units, or for input external trigger signal.

BNC cable 366926

BNC cable 366926

A 1 m long BNC-alligator clip cable.
Use only for circuits having voltage levels no greater than 42 V.
Applicable for DL750/DL750P, SL1000 & SL1400

Current Input Module 760813

Current Input Module 760813

A Power Module consists of one Voltage Module- Model 760811, and one Current Module- 760812 or 760813.

Current Module 760812

Current Module 760812

A Power Module consists of one Voltage Module- Model 760811, and one Current Module- 760812 or 760813.

Differential Probe 100 MHz/1400 V 700924

Differential Probe 100 MHz/1400 V 700924

Differential probe powered by Yokogawa Digital Oscilloscopes, ScopeCorders, external power supply or internal battery.

Large Alligator-clip Adapter 758929

Large Alligator-clip Adapter 758929

Rated at 1000V. Attaches to the 758917 test leads. Sold in pairs.
Applicable for DL750/DL750P, SL1000, SL1400.

Long Test Clip 701906

Long Test Clip 701906

Set contains one black and one red clip
1000 Vrms-CAT II
2 pieces (red and black) in 1 set 
Connected to the 758933, 758917, or 701901
Length: 0.3m
Applicable for DL750/DL750P, SL1000, SL1400

Measurement Lead 366961

Measurement Lead 366961

A subassembly of 1.2 m long test leads with alligator-clip adapters.
Use only for circuits having voltage levels no greater than 42 V.
Applicable for SL1000 & SL1400.

Measurement lead set 758917

Measurement lead set 758917

A set of 0.8m long red and black test leads, used in combination with a pair of optional 758922 or 758929 alligator-clip adapters. Appliable for DL750/DL750P & SL1400.

Plug on Clip 701948

Plug on Clip 701948

Connected to the 700929, 701947
Maximum input voltage: 1,000V (DC + ACpeak)
Length: 0.26m/0.3m/0.4m
Applicable for DL750/DL750P, SL1000, SL1400

Safety BNC cable 701902/701903

Safety BNC cable 701902/701903

701902: 1000 Vtms-CAT II (BNC-BNC), 1 m
701903: 1000 Vrms-CAT II (BNC-BNC), 2 m

Safety Terminal Adapter Set 758923

Safety Terminal Adapter Set 758923

Two adapters in a set (spring-hold type).

Safety Terminal Adapter Set B8213ZA

Safety Terminal Adapter Set B8213ZA

Two adapters in a set for current input of the PX8000

Safety mini clip (hook type) 701959

Safety mini clip (hook type) 701959

Set contains one black and one red clip. 1000 Vrms-CAT II.

Small Alligator-clip Adapter 758922

Small Alligator-clip Adapter 758922

Rated at 300 V. Attaches to the 758917 test leads. Sold in pairs.
Applicable for DL750/DL750P, SL1000, SL1400

Soft carrying case for DL850, DL850V and DL750 701963

Soft carrying case for DL850, DL850V and DL750 701963

Three pockets are provided for storing accessories and the user’s manual.

Voltage Module 760811

Voltage Module 760811

A Power Module consists of one Voltage Module- Model 760811, and one Current Module- 760812 or 760813.

 

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