Instruction manual symbol: the product
will
be marked with this
symbol when
it
is necessary for the user to refer
to
the instruction
manual in order
to
protect against damage
to
the instrument.
A
Indicates dangerous voltage (terminals fed from the interior by
voltage exceeding
lo00
volts must be
so
marked).
/s
Protective conductor terminal. For protection against electrical
shock in case
of
a
fault.
Used with field wiring terminals
to
in-
dicate the terminal which must be connected
to
ground before
4
-
OR@
operating equipment.
Low-noise
or
noiseless, clean ground (earth) terminal. Used for
a
signal common, as well as providing protection against electrical
shock in case of a
fault.
A terminal marked with this symbol must
.be connected to ground in the manner described in the installation
(operating) manual, and before operating the equipment.
D
,
Frame or chassis terminal. A connection to the frame (chassis) of
/f;r
OR
1,
the equipment which normally includes
all
exposed metal struc-
tures.
Alternating current (power line).
-
- -
-
Direct current (power line).
Alternating or direct current (power line).
The WARNING sign denotes
a
hazard.
It
calls attention
to
a
pro-
cedure, practice, condition
or
the like, which,
if
not correctly per-
0
formed or adhered to, could result in injury or death
to
personnel.
WARNING
SAFETY
SYMBOLS
General Definitions of Safety Symbols
Used
On Equipment
or
In Manuals.
The CAUTION sign denotes
a
hazard.
It
calls attention
to
an
operating procedure, practice, condition
or
the like, which,if not
correctly performed or adhered to, could result in damage
to
or
destruction of part or all
of
the product.
CAUTION
The NOTE sign denotes important information.
It
calls attention
to
procedure, practice, condition or the like, which is essential
to
highlight.
E
'
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