AMETEK MX15 Series - Manual (Page 104)

User Manual – Rev M California Instruments
MX15 104
as the signal being measured is at the low end of the measurement range. This is particularly
relevant for low current measurements. The MX Series is a high power AC and DC source
optimized for providing and measuring high load currents. When powering low power loads,
measurement inaccuracies on rms and peak current measurements will greatly affect derived
measurements such as power, power factor and crest factor.
The measurement system on the MX15 Series uses a data acquisition system with a 48 kHz
bandwidth. This means that high frequency components of the measured signal are filtered out.
Any contribution to the rms value of voltage and current above this cutoff frequency will not be
reflected in the MX Series measurements. When using an external measurement reference, this
may account for discrepancies in readings.
4.6 Advanced Measurements [1Pi Controller only]
The 1Pi controller offers advanced power analyzer measurement capabilities. They include
Harmonic Analysis and Waveform Acquisition, These functions are only available using the
provided Gui program since they cannot be graphically displayed on the two line dislay.