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Saving Measured Data
Recordable time and data
When [Auto-save operation] is set to [ON], the remaining save time for the USB ash drive being
used will be displayed. An estimate of the remaining save time is calculated based on the amount
of usable space on the USB ash drive, the number of parameters being recorded, and the data
saving interval time.
Approximate recordable time for text format and common format
Number of
measurement items
to be recorded per
USB capacity
32 GB (1x) 64 GB (approx. 2x) 128 GB (approx. 4x)
Text Binary Text Binary Text Binary
100
301 h 996 h 602 h 1992 h 1204 h 3984 h
200
158 h 517 h 316 h 1034 h 632 h 2068 h
500
65 h 212 h 130 h 424 h 260 h 848 h
1000
33 h 107 h 66 h 214 h 132 h 428 h
2000
16 h 54 h 32 h 108 h 64 h 216 h
5000
7 h 21 h 14 h 42 h 28 h 84 h
The table above does not take le segmentation into consideration. If le segmentation is considered, the
recordable times will be slightly shorter.
In text format, one measured data set consists of up to 13 bytes; in binary format, one measured data set
consists of four bytes.
Estimated data sizes of waveforms are as follows. Data les are segmented every 500 MB.
Volume of waveform data Text format Binary format
1 channel, 1000 points 26 kB 6 kB
1 channel, 5 megapoints 130 MB 20 MB
24 channels, 1000 points 456 kB 118 kB
24 channels, 5 megapoints 2270 MB 584 MB
Timing at which new les are created
If data is being saved onto a USB ash drive, a new le will be created when integration starts.
Example 1: If the amount of data exceeds approximately 500 MB per le, a new le will be created. (A
maximum of 1000 les will be saved per measurement.)
Example 2: When you stop integration and then press the DATA RESET key, a new le will be
created upon the start of the next time integration. (A maximum of 100 les will be
saved per folder.)
Example 3: A new le is created when the number of data points per le exceeds one
megasampling point.
Example 4: When the saving format is set to binary format, a new le is created when the
integration stops and the voltage and current ranges are changed.
See “Folder and le structure when saving data automatically” (p. 128).
Saving Data and Managing Files
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