Vitrek Xitron 2801, Руководство пользователя

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68 2801/2802 Power Analyzer User Guide
fundamental component.
The CAPTURE FILTERED WAVEFORM setting selects whether the
captured waveform is to be filtered or not -
The Menu choices are NO and YES. These are set by pressing the
ENTER key when the CAPTURE FILTERED WAVEFORM is
highlighted, use the up and down arrow keys to select NO or YES,
press ENTER to select.
•
YES : the captured inrush waveform is filtered according to the
filtering selected by the measurement type (see below).
•
NO : the captured inrush waveform is totally unfiltered (i.e. full
bandwidth of the product).
The filtering that is used for each measurement type is as follows, this
filtering applies to all measurements,
•
MEASUREMENT TYPE = LINE : Uses an Adaptive HF Cutoff filter
with an upper cutoff (5% down) of the lower of 60kHz or twice the
maximum measured harmonic frequency.
•
MEASUREMENT TYPE = HF : Uses a Fixed HF Cutoff filter with an
upper cutoff (5% down) at 200kHz.
•
MEASUREMENT TYPE = 10kHz-200kHz : Uses no HF filtering.
•
MEASUREMENT TYPE = USER SET : Filtering is set by the user.
•
MEASUREMENT TYPE = DC : If uses a fixed frequency ripple
measurement - Uses a Fixed HF Cutoff filter with an upper cutoff (5%
down) at 200 times the user entered fixed ripple frequency, otherwise –
uses a Fixed HF Cutoff filter with an upper cutoff (5% down) at 4kHz.
•
MEASUREMENT TYPE = 0.5-20Hz : Uses an Adaptive HF Cutoff filter
with an upper cutoff (5% down) of the lower of 14kHz or 100 times the
measured fundamental frequency.