MR8740T_user_manual_eng_20191016H.pdf - 第225页

220 Information for Reference Purposes W aveform (text) le size (T ext le size) = (Header part size) + (Data part size) (Header part size) = (About 14 KB at a maximum) (varies depending on the setting condition) (Data …

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13 Appendix
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Appendix
13.1 Information for Reference Purposes
Waveform le size (values for reference purposes)
Waveform le size (for reference)
(MEM le size) = (Setting part size) + (Data part size)
(Setting part size) = 791040 + 512 × [(Number of analog channels) + 4 × (Number of logic channels) +
(Number of real-time calculation channels)]
(Data part size) = {2 × [(Number of analog channels other than Model MR8990 or U8991) + (Number of
logic modules)] + 4 × [(Number of channels of Models MR8990 and U8991) + (Number of
real-time calculation channels)]} × (Number of data sets)
Recording
length
(Points)
Number of channels saved
4 8 16 32 54 108
2.5 k 815 KB 839 KB 887 KB 983 KB 1.1 MB 1.4 MB
5 k 835 KB 879 KB 967 KB 1.1 MB 1.4 M 2.0 MB
10 k 875 KB 959 KB 1.1 MB 1.5 MB 2.0 MB 3.0 MB
20 k 955 KB 1.1 MB 1.4 MB 2.1 MB 3.0 MB 5.2 MB
50 k 1.2 MB 1.6 MB 2.4 MB 4.0 MB 6.2 MB 11.7 MB
100 k 1.6 MB 2.4 MB 4.0 MB 7.2 MB 11.6 MB 22.5 MB
200 k 2.4 MB 4.0 MB 7.2 MB 13.6 MB 22.4 MB 44.1 MB
500 k 4.8 MB 8.8 MB 16.8 MB 32.8 MB 54.8 MB 108.9 MB
1 M 8.8 MB 16.8 MB 32.8 MB 64.8 MB 108.8 MB 216.9 MB
2 M 16.8 MB 32.8 MB 64.8 MB 128.8 MB 216.8 MB 432.9 MB
5 M 40.8 MB 80.8 MB 160.8 MB 320.8 MB 540.8 MB 1.1 GB
10 M 80.8 MB 160.8 MB 320.8 MB 640.8 MB 1.1 GB –
• These sizes, which can be used only as a reference, of text les are acquired when analog channels (other
than Model MR8990 or Model U8991) are used. Any number of logic channels on one module occupies one
channel; one analog channel (Model MR8990 and Model U8991) occupies two channels each.
• The instrument divides les with a size that exceeds 512 MB into multiple les of about 512 MB each to save
them.
13
Appendix
220
Information for Reference Purposes
Waveform (text) le size
(Text le size) = (Header part size) + (Data part size)
(Header part size) = (About 14 KB at a maximum) (varies depending on the setting condition)
(Data part size) = [24 + 14 × (Number of analog channels) + 32 × (Number of logic modules) + 14 × (Number
of real-time calculation channels)] × (Number of data points)
Recording
length
(Points)
Number of channels saved
4 8 16 32 54 108
2.5 k 214 KB 354 KB 634 KB 1.2 MB 2.0 MB 3.9 MB
5 k 414 KB 694 KB 1.3 MB 2.4 MB 3.9 MB 7.7 MB
10 k 814 KB 1.4 MB 2.5 MB 4.7 MB 7.8 MB 15.4 MB
20 k 1.6 MB 2.7 MB 5.0 MB 9.5 MB 15.6 MB 30.7 MB
50 k 4.0 MB 6.8 MB 12.4 MB 23.6 MB 39.0 MB 76.8 MB
100 k 8.0 MB 13.6 MB 24.8 MB 47.2 MB 78.0 MB 153.6 MB
200 k 16.0 MB 27.2 MB 50.0 MB 94.4 MB 156.0 MB 307.2 MB
500 k 40.0 MB 68.0 MB 124.0 MB 236.0 MB 390.0 MB 768.0 MB
1 M 80.0 MB 136.0 MB 248.0 MB 472.0 MB 780.0 MB 1.54 GB
2 M 160.0 MB 272.0 MB 496.0 MB 944.0 MB 1.56 GB 3.07 GB
5 M 400.0 MB 680.0 MB 1.24 GB 2.36 GB 3.90 GB 7.68 GB
10 M 800.0 MB 1.36 GB 2.48 GB 4.72 GB 7.80 GB –
• These sizes, which can be used only as a reference, of text les are acquired when analog channels (other
than Model MR8990 or Model U8991) are used.
• Depending on the setting conditions, the size may slightly differ from those provided in the above table.
Allow 20% of the size provided in the above table for margin.
• The instrument divides les with a size that exceeds 512 MB into multiple les of about 512 MB each to save
them.
221
Information for Reference Purposes
Maximum recordable time when the real-time save is enabled (values
for reference purposes)
The maximum recordable time is expressed in the following equation.
(Maximum recordable time) = [(Recording capacity) × (Sampling time)] ÷ [(Number of
channels used) × 2]
(Number of channels used) = [(Number of analog channels other than Model MR8990) + (Number of logic
modules) + (Number of Model MR8990 channels)] × 2 + (Number of real-time
calculation channels) × 2
The maximum recordable times for saving data to each storage device are shown in the following
table (assume that each storage device is empty). Since no capacity of the header of a waveform
le is included, use about 90% of the recordable time provided in the table as a reference.
Some conditions allow a long-term recordable time (one year or more, shaded areas in the tables)
to be set; however, the operation cannot be guaranteed because the warranty period or product life
may disturb it.
For saving data on the built-in SSD
d: days, h: hours, min: minutes, s: seconds
Sampling rate
Number of channels used
4 (16 channels) 8 (32 channels) 16 (64 channels) 27 (108 channels)
5 MS/s*
50 min 00 s – – –
2 MS/s
2 h 5 min 00 s 1 h 2 min 00 s – –
1 MS/s
4 h 10 min 00 s 2 h 5 min 00 s 1 h 2 min 30 s –
500 kS/s
8 h 20 min 00 s 4 h 10 min 00 s 2 h 5 min 00 s 1 h 2 min 30 s
200 kS/s
20 h 50 min 00 s 10 h 25 min 00 s 5 h 12 min 30 s 2 h 36 min 15 s
100 kS/s
1 d 17 h 40 min 00 s 20 h 50 min 00 s 10 h 25 min 00 s 5 h 12 min 30 s
50 kS/s
3 d 10 h 20 min 00 s 1 d 17 h 40 min 00 s 20 h 50 min 00 s 10 h 25 min 00 s
20 kS/s
8 d 16 h 20 min 00 s 4 d 8 h 10 min 00 s 2 d 4 h 5 min 00 s 1 d 2 h 2 min 30 s
10 kS/s
17 d 8 h 40 min 00 s 8 d 16 h 20 min 00 s 4 d 8 h 10 min 00 s 2 d 4 h 5 min 00 s
5 kS/s
34 d 17 h 20 min 00 s 17 d 8 h 40 min 00 s 8 d16 h 20 min 00 s 4 d 8 h 10 min 00 s
2 kS/s
86 d 19 h 20 min 00 s 43 d 9 h 40 min 00 s 21 d16 h 50 min 00 s 10 d20 h 25 min 00 s
1 kS/s
173 d 14 h 40 min 00 s 86 d 19 h 20 min 00 s 43 d 9 h 40 min 00 s 21 d16 h 50 min 00 s
500 S/s
347 d 5 h 20 min 00 s 173 d 14 h 40 min 00 s 86 d19 h 20 min 00 s 43 d 9 h 40 min 00 s
200 S/s
868 d 1 h 20 min 00 s 434 d 0 h 40 min 00 s 217 d 0 h 20 min 00 s 108 d12 h 10 min 00 s
100 S/s
1736 d 2 h 40 min 00 s 868 d 1 h 20 min 00 s 434 d 0 h 40 min 00 s 217 d 0 h 20 min 00 s
50 S/s
3472 d 5 h 20 min 00 s 1736 d 2 h 40 min 00 s 868 d 1 h 20 min 00 s 434 d 0 h 40 min 00 s
20 S/s
8680 d 13 h 20 min 00 s 4340 d 6 h 40 min 00 s 2170 d 3 h 20 min 00 s 1085 d 1 h 40 min 00 s
10 S/s
10000 d 8680 d 13 h 20 min 00 s 4340 d 6 h 40 min 00 s 2170 d 3 h 20 min 00 s
5 S/s
10000 d 10000 d 8680 d13 h 20 min 00 s 4340 d 6 h 40 min 00 s
2 S/s
10000 d 10000 d 10000 d 10000 d
1 S/s
10000 d 10000 d 10000 d 10000 d
*: You can set the sampling rate at 5 MS/s only if the number of channels to be saved is 12 or less.
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Appendix