Configuration Setup
61
3. Set the
Min Period:
menu selection to the desired update interval. The
recommended setting is the longer time: 250mS or 4 periods of the minimum
fundamental.
4. Set the
Filter:
menu selection to eliminate any undesired high frequency signal
content.
•
If the upper limit of the frequency range is above 1kHz, increase this setting.
•
If harmonic measurements of squarewaves or signals with significant non-
harmonic content are to be performed,
—Then—
Set this as low as possible. The recommended setting is the lower of 50
times the fundamental, or 100kHz.
5. Set the
Max Harmonics:
menu selection.
•
Set 0 if no harmonic analysis is required.
•
Set to 200, if measurements of phase or of high-order harmonic amplitude
are required.
•
Set to 50 if measurements of amplitude harmonics, only, are required.
•
If you are performing phase measurements using squarewaves,
—Then—
The recommended setting is as high as possible—up to the maximum 2047.
6. The default
Fundamental
÷
BW:
selection (2) does not require changing, if
the signal contains significant random noise, or you are measuring squarewaves.
7. Change the default
Fundamental
÷
BW:
selection (2), if an increase is needed
for stable measurements.
8. Change the
FFT Type:
setting to
Windowed
, if you are making only amplitude
harmonic measurements, or phase measurements of squarewaves.
9. If the fundamental frequency is less than 20Hz, set the
Sync Averaging:
selection to
none
.
Note that the default
Sync Period:
selection (0.25S) does not require changing, as
the instrument will automatically extend this period at low frequencies.
Ø
To measure harmonic content, or wideband amplitudes synchronously:
Note:
Applies where the input signal is below 1kHz and the fundamental frequency
is either immeasurable or predictably within 2%.
1. Set the
Fund:
menu selection to
Fund: Fixed
, and set the frequency to the
required fundamental frequency.
2. Set the
Min Period:
menu selection to the fastest desired update interval,
whichever is the longer: 250mS or 4 periods of the fundamental.
Содержание Xitron 6000-2
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