Hioki LR8410-20, Инструкция по эксплуатации

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Appendix 9 Frequently Asked Questions
A
27
Appendix
What is the file limit when auto
saving to removable storage?
Depending on file size and SD memory
card capacity, more than 1,000 files can
be saved in one folder, although only
1,000 can be displayed on the file
screen. As the number of files increas-
es, the time required to start and stop
measurement also increases, so we
recommend storing no more than 1,000
files, if possible.
(When saving, a folder named
"HIOKI_LR8410" is created, and files
with different data types are saved in
subfolders within it.) "6.1 About Saving and
Loading Data" (p. 159)
Is data retained in internal memo-
ry when I turn the power off after
measuring? I did not use auto
saving to removable storage. If waveforms are displayed when power
is turned on, the data has been retained.
Data in internal memory is retained for
about 30 minutes after power-off. How-
ever, the internal buffer memory com-
prises temporary memory. If more than
30 minutes elapses before the instru-
ment is turned back on, the data will be
erased.
To avoid such data loss, we recommend
preparing and making settings for power
outages when measuring for a long
time. "What happens to data
in a power outage?" (p
.161)
Why is only part of the data saved
when saving to removable stor-
age after measuring? When A/B cursors are set to specify a
save time span, only data within that
span is saved. Also, internal memory
capacity limits saving of measurement
data to the most recent eight million data
points.
If you need to save more data points,
enable real-time auto saving before-
hand. "Specifying a Wave-
form Time Span" (p
.118)
"Automatic Saving
(Waveform Data and
Numerical Calculation
Results)" (p .163)
After starting measurement with
real-time auto saving, can I still
acquire data if I neglected to in-
sert removable storage media un-
til later? As long as storage media is inserted be-
fore internal buffer memory overflows,
data from the start of measurement will
be saved to the removable storage.
The fastest that the internal buffer mem-
ory will be full is about 10 minutes. "Replacing Removable
Storage During Real-
Time Saving" (p .166)
Why does "Saving" continue to
be displayed and saving not fin-
ish when saving internal memory
data as text after measurement? To save all data from a full internal
memory to removable media as text af-
ter measurement takes about one hour.
To abort the saving process, press and
hold
STOP for some time.
We recommend saving binary data, and
later converting to text with the Logger
Utility (which takes only a few seconds).
Logger Utility

Instruction manual
"7.1.1 Saving Measure-
ment Data as Text"
How to view data saved in binary
format on a PC? The Logger Utility PC application pro-
gram is included on the supplied CD. In-
stall it on the PC and use it to open the
file. "10.3 Using the Logger
Utility" (p. 234)
Question
Remedial Action
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