Atec Tektronix-PA4000_Power-Analyzer - Manual (Page 2)

Unique Spiral Shunt ™ technology (patent
applied for)
The PA4000 employs an innovative Spiral Shunt design that ensures
stable, linear response over a wide range of input current 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.
Spiral Shunt for 30 A input
Spiral Shunt for 1 A input
Application-specific test modes
Some 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.
Selection of application-specific test modes.
PWM motor drive mode
PWM motor mode is designed to overcome the difficulties associated with
making measurements on the complex waveforms commonly found on the
motor drives. High frequency sampling is combined with digital filtering to
reject the carrier frequency and extract the motor frequency while still using
prefiltered data for power parameters
Standby power mode
Driven by consumer demand and energy efficiency regulations (such as
ENERGY STAR), there is an ever-increasing need to measure power
consumption of products while they are in standby mode. One of the most
widely used standards for measurement is IEC 62301. Part of this standard
requires the measurement of power over a prolonged period of time without
missing any short duration power events. The PA4000 standby power mode
provides continuous sampling of voltage and current to produce an accurate
Watts measurement over the user specified period.
Datasheet
2 www.tektronix.com