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User Manual
48 i Series / iX Series
4.2.5 MEASUREMENTS Screens
The i/iX Series uses a DSP based data acquisition system to provide extensive information
regarding the output of the Source. This data acquisition system digitizes the voltage and current
waveforms and calculates several parameters from this digitized data. The result of these
calcalutions is displayed in a series of measurement data screens. The actual digitized
waveforms can also be displayed by selecting the Harmonics/Trace Analysis screen. A total of
four measurement screens are used to display all this information (iX series only).
Figure 4-9: MEASUREMENTS Screen, single phase and three phase modes
The first three Measurement screens available on the iX Series are not menus in that no
changes can be made anywhere. Instead, these three screens provide load parameter readouts.
The fourth measurement screen provides access to the advanced measurements and does offer
several user accessible fields (iX Series only). The measurement screens can be reached by
successively pressing the MEAS key which will toggle to all four available screens.
In three phase configuration iX Series, measurements are available for each phase individually.
To select the desired phase, use the PHASE key to toggle through phase A,B,C, or ABC. The
ABC mode displays the data for all three phases simultaneously.
The following parameters are available in the first three measurement screens:
Entry Description
MEASUREMENT 1
VOLTAGE When in AC or AC+DC mode, this value is the true rms output
voltage measured at the voltage sense lines. In DC only mode,
the voltage is the DC voltage including polarity.
CURRENT When in AC or AC+DC mode, this value is the true rms output
current drawn by the load. In DC only mode, the current is the
DC current including polarity
FREQ When in AC or AC+DC mode, the output frequency is measured
at the sense lines. When in DC only mode, this value always
reads “DC”.
POWER In both AC and DC mode, this value is the real rms. power
consumed by the load.
MEASUREMENT 2
VA POWER In AC or AC+DC mode, this value is the apparent rms. power
consumed by the load. In DC mode, this value is always the
same as the POWER readout.