Operating Precautions
11
Using a CF Card/USB flash drive
• Inserting a CF card/USB flash drive upside down, backwards or in the
wrong direction may damage the CF card, USB flash drive, or HiLogger.
• Never eject a CF card /USB flash drive while measuring or when the
HiLogger
is or accessing the card. Data on the CF card/USB flash
drive may be destroyed. (The CF icon/USB flash drive icon at the
lower right is red while the card is being accessed.)
• Do not transport the HiLogger while a USB flash drive is connected.
Dam
age could result.
• As the CF card/USB flash drive is sensitive to static electricity, damage
to the CF card/USB flash drive or wrong operations by the HiLogger
may occur due to static electricity. Please be careful when handling it.
• With some USB flash drives, the HiLogger may not start up if power is
turned
on while the USB flash drive is inserted. In such a case, turn
power on first, and then insert the USB flash drive. It is recommended
to try out operation with a USB flash drive before starting to use it for
actual measurements.
• The Flash memory in a CF card/USB flash drive has a limited operat-
ing life. After long-term usage, data storage and retrieval become diffi-
cult. In this case, replace the CF card/USB flash drive with a new one.
• We cannot provide compensation for data loss in a CF card/USB flash
dr
ive, regardless of content or cause of the damage. Data is also cleared
from memory if a long time passes after measuring. Always maintain a
backup of important data stored on a CF card/USB flash drive.
• Although real-time saving to USB flash drive is supported, a CF card is
r
ec
ommended for data preservation. Performance cannot be guaranteed
when using storage media other than a Hioki-specified CF card option.
• Use a USB flash drive whose continuous current consumption does not
exce
ed 300 mA (peak 500 mA). (The peak value is displayed as "Max
Power" under the USB flash drive self-test on the [System] screen.)
• Depending on how USB is used, the USB connector and instrument set-
tings may vary as shown in the chart below.
• The three USB methods of use described in the chart below involve
exclu
sive settings and cannot be used simultaneously.
USB method of use
Connector
used
[System] screen USB
mode setting
Use a USB flash drive. Type A USB Memory (Default)
Communicate with the LR8431-20
and initiate measurement using the
Logger Utility software from a com-
puter (using a USB cable).
Type B USB Communication
Read files on a CF card that is con-
nected to the LR8431-20 from a
computer (using a USB cable).
Type B USB Drive
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