Hioki LR8431, Instruction Manual

Page: 165 / 204

Appendix 2 File Naming
A
7
Appendix
File names are constructed as follows (must be exactly eight characters, not includ-
ing extension).
Appendix 2 File Naming
W A V E 0 0 0 1 . M E M
1. File Type
2. Automatic serial number
3. File Extension
File Type Folder Name 1. File Type
2. Automatic serial
number
3. File Extension
Settings Data CONFIG
CONF
0001,... 99999999 .SET
Waveform
Data
DATA
(Folders named
by date are au-
tomatically cre-
ated) *2
Manual Save: WAVE
Auto Save: (specified
name) or AUTO
0001, ...99999999
*1
.MEM (Binary)
.CSV (Text) *3, 4
Numerical
Calculation
Results
MEASURE-
MENT
Manual Save: MEAS
Auto Save: (specified
name) or AUTO
0001, ...99999999 .CSV *3, 4
Captured
Screen Im-
age
PICTURE SCR
00001...99999999 .BMP
*1 When auto saving waveform data and calculation results, automatically generated serial
numbers (up to eight digits) are appended to the specified file name. If no file name is
specified, AUTO is automatically entered.

(XXXX0001.MEM, XXX00001.MEM, XX000001.MEM, X0000001.MEM)

When auto numbering exceeds 9999, the file name characters are overwritten (right to
left) until all eight digits are used for serial numbers.

(Example: WAVE9999.MEM, WAV10000.MEM, .. )
*2 When [Deleting] is enabled with auto save, the oldest waveform file is deleted when the
CF card is full. When all waveform files within a date folder have been deleted, the folder
name (date) is automatically updated.

(Example:) Before updating: 12-07-17

After updating: 12_07_17_120719_101113 (old date_new date _new day and time)

Hyphens (-) are changed to underbars (_) and the date when the folder name was last
changed is appended.

(The example shows a new date and time of July 19th 2012, 10:11:13.)
*3 The TXT file extension is applied except when [Separator:Comma] is selected on the
[System] screen.
*4 Before loading data into a spreadsheet program such as Excel, note that the number of
rows that can be loaded at one time is limited (to 60,000 rows in Excel 97 – 2003, and to
one million rows in Excel 2007).

Larger CSV files can be split by the following methods:
• Use a CSV file-splitting program (downloadable for free from Hioki's website).
• Before saving, select the [Split Save] saving method in the HiLogger.
Note: The number of rows recorded per minute with 10 ms recording interval is:
100 (data points per second) x 60 (seconds) = 6,000 rows