JRC JLR-20, Instruction Manual

Page: 4 / 118

ii
Before Commencing the Operation
Symbols
Several symbols are used in this manual to ensure safety and proper operation of the
equipment and to avoid possible human injury or property damage. These symbols
and their meanings are shown below. Please read and understand these symbols
before proceeding to read this manual.
WARNING Instructions shown with this symbol represent what can
cause death or serious injury if not observed.
CAUTION Instructions shown with this symbol represent what may
cause injury or property damage if not observed.
Examples of the Symbols
The symbols shown in the
∆
mark represent those that require attention
(including potential dangers and warnings).
A depiction of the type of caution is shown inside the symbol (the left
symbol indicates a general caution).
The symbols shown in the
[
mark represent actions which are
prohibited. A depiction of the type of prohibited action is shown inside
the symbol (the left symbol indicates that disassembly is prohibited).
The
Q
symbol indicates required actions. A depiction of the type of
required action is shown inside the symbol (the left symbol indicates that
the power plug must be disconnected from the outlet).