Operating Precautions
11
Connecting to the Pulse Input, Alarm Output, and Other External Control Terminals
• The External Control Terminals is not isolated from the HiLogger’s
chassis ground. Make certain that there will be no potential differ-
ence between the External Control Terminals and the ground of any
connected device. Otherwise, the HiLogger or device could be dam-
aged.
• To avoid electric shock or damage to the equipment, always
observe the following precautions when connecting to pulse input
terminals, alarm output terminals, and External Control Terminals.
• Always turn off the power to the HiLogger and to any devices to be
connected before making connections.
• Be careful to avoid exceeding the ratings of External Control Termi-
nals.
• Ensure that devices and systems to be connected to the External
Control Terminals are properly isolated.
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
HiLogge
r 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 left is
red while the card is being accessed.)
• Do not transport the HiLogger while a USB flash drive is connected.
D
amage could result.
• As the CF card/USB flash drive is sensitive to static electricity, damage to
the CF card/USB flash dr
ive 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
turn
ed 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 operating
life. After long-term usage, data storage and retrieval become difficult. 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
drive, 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
reco
mmended for data preservation. Performance cannot be guaranteed
when using storage media other than a Hioki-specified CF card option.
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