Tektronix PA4000The Tektronix PA4000 Power Analyser delivers consistently accurate measurements, even with challenging power waveforms. While most power Analysers rely on zero-crossing point to detect and track fundamental frequency, the PA4000 Power Analyser uses a unique method to lock onto signals, no matter how complex. Add in wide cur and voltage input ranges, built-in test modes and standard PC interfaces, and you have a power Analyser that’s as versatile as it is accurate.Two Cur-Measurement Shunts per ChannelThe Tektronix PA4000 Power Analysers delivers highly accurate, multi-channel power, energy, and efficiency measurements. Precisely-matched inputs, unique Spiral Shunt™ technology, and advanced signal processing deliver high accuracy even with highly modulated waveforms and crest factors as high as 10. The versatile Tek PA4000 offers comprehensive power measurements. Dual cur shunts provide optimal resolution from microwatts to kilowatts. Harmonics analysis up to the 100th harmonic, and motor analysis with torque and speed inputs are included in the standard instrument. The PA4000 comes with multiple PC interfaces, PC software, and USB flash drive support to help you collect and analyze data.Flexible Voltage and Cur Input choices to Fit Your ApplicationThe PA4000 is the only instrument of its kind to feature both high- and low range internal cur shunts in each input module. The 30-Amp shunt is perfect for many applications and can accept up to 200 A peak; but for measuring low-cur devices the 1 A shunt provides increased resolution and accuracy for measurements down into the microamp range. For measuring curs over 30 Amps, a selection of matching external cur transducers are available in several styles, including high-accuracy transducers up to 1000 A. The PA4000’s voltage inputs can accept up to 1000 Vrms, 2000 Vpeak, continuous.Unique Spiral Shunt™ TechnologyThe PA4000 employs an innovative Spiral Shunt design that ensures stable, linear response over a wide range of input cur levels, ambient temperatures, crest factors, and other variables. This new design is superior to other shunt technologies and contributes to the instrument’s reliable accuracy and repeatability over a wide range of signal conditions common in today’s power conversion technologies. The spiral construction not only minimizes stray inductance (for optimum high frequency performance) but also provides for high overload capability and improved thermal stability.Application-Specific Test ModesSome applications require special instrument settings to ensure proper measurements. The PA4000 simplifies setup for these applications by automatically choosing instrument settings and parameters that are optimized for each type of measurement application, resulting in more reliable measurement results with less opportunity for user setup error:PWM Motor Drive ModeDesigned to overcome the difficulties associated with making measurements on the complex waveforms commonly found on the motor drivesStandby Power ModeProvides continuous sampling of voltage and cur to produce an accurate Watts measurement over the user specified period.Ballast ModeSynchronizes measurements for highly modulated electronic ballast waveformsIntegrator ModeProvides measurements for determining energy consumption (Watt-hours, Ampere-hours, etc.)Features and specificaitons of the Tektronix PA4000 include:

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