SAFETY
SYMBOLS
General Definitions of Safety Symbols Used On
Equipment or
In
Manuals.
i
OR
77*7
X
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.
Indicates dangerous
voltage (terminals fed
from the interior by
voltage exceeding 1000
volts must be so
marked).
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
opierating 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
(opierating) manual,
and before operating the
equipment.
Frame or chassis terminal.
A connection to the
frame (chassis) of
the equipment
which normally includes all
exposed metal struc-
tures.
Alternating current
(power
line).
Direct current (power line).
Alternating or direct current
(power
line).
WARNING
1
t
1
t
^caution}
The
WARNING
sign denotes a hazard. It calls attention to a pro-
cedure, practice,
condition or the like, which,
if not correctly
per-
formed or adhered to.
could result in injury
or death to
personnel.
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.
NOTE:
The NOTE sign denotes important information. It calls attention
to procedure, practice, condition or the like,
which
is essential to
highlight.
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