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Danger
It indicates possible danger of electric shock, which may cause personal
injury or death.
Warning
It indicates that you should be careful to avoid personal injury or product
damage.
Caution
It indicates possible danger, which may cause damage to this device or
other equipment if you fail to follow a certain procedure or condition. If the
“Caution” sign is present, all conditions must be met before you proceed
to operation.
Note
It indicates potential problems, which may cause failure of this device if
you fail to follow a certain procedure or condition. If the “Note” sign is
present, all conditions must be met before this device will function
properly.
AC
Alternating current of device. Please check the region’s voltage range.
DC
Direct current device. Please check the region’s voltage range.
Grounding
Frame and chassis grounding terminal.
Grounding
Protective grounding terminal.
Grounding
Measuring grounding terminal.
OFF
Main power off.
ON
Main power on.
Power
Supply
Standby power supply: when the power switch is turned off, this device is
not completely disconnected from the AC power supply.
CAT I
Secondary electrical circuit connected to wall sockets through
transformers or similar equipment, such as electronic instruments and
electronic equipment; electronic equipment with protective measures, and
any high-voltage and low-voltage circuits, such as the copier in the office.
CAT II
CATII: Primary electrical circuit of the electrical equipment connected to
the indoor socket via the power cord, such as mobile tools, home
appliances, etc. Household appliances, portable tools (e.g. electric drill),
household sockets, sockets more than 10 meters away from CAT III
circuit or sockets more than 20 meters away from CAT IV circuit
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