Appendix 2 Record Length And T/Div Settings That Allow Waveform Computation Of Harmonics - YOKOGAWA DL7440 User Manual

Appendix 2
Number of Waveform Data Points According to the Record Length and Time Axis (T/div)
To perform waveform computation on harmonics, 16 cycles of the fundamental waveform is
required. In addition, the number of waveform data points must be at least 8192 points within
the 16 cycles. The area shown in white in the table below is the area where waveform
computation on harmonics is possible. Waveform computation on harmonics is not possible in
the gray area.
Record Fundamental
Length Frequency
1k 50Hz
60Hz
10k 50Hz
60Hz
50k 50Hz
60Hz
100k 50Hz
60Hz
250k 50Hz
60Hz
500k 50Hz
60Hz
1M 50Hz
60Hz
2M 50Hz
60Hz
4M 50Hz
60Hz
IM 701450-61E
Record Length and T/div Settings
That Allow Waveform Computation of
Harmonics
50ms 100ms 200ms
640 320 160
533 267 133
6400 3200 1600
5333 2667 1333
32000 16000 8000
26667 13333 6667
64000 32000 16000
53333 26667 13333
160000 64000 32000
133333 53333 26667
320000 160000 64000
266667 133333 53333
640000 320000 160000
533333 266667 133333
1600000 640000 320000
1333333 533333 266667
3200000 1600000 640000
2666667 1333333 533333
T/div
500ms 1s 2s
64 32 16
53 27 13
640 320 160
533 267 133
3200 1600 800
2667 1333 667
6400 3200 1600
5333 2667 1333
16000 6400 3200
13333 5333 2667
32000 16000 6400
26667 13333 5333
64000 32000 16000
53333 26667 13333
160000 64000 32000
133333 53333 26667
320000 160000 64000
266667 133333 53333
5s 10s 20s
6 — —
5 — —
64 32 16
53 27 13
320 160 80
267 133 67
640 320 160
533 267 133
1600 640 230
1333 533 267
3200 1600 640
2667 1333 533
6400 3200 1600
5333 2667 1333
16000 6400 3200
13333 5333 2667
32000 16000 6400
26667 13333 5333
50s
—
—
6
5
32
27
64
53
160
133
320
267
640
533
1600
1333
3200
2667
51