Model 7475A
Safety Symbols
General Definitions
of
Safety Symbols
Used
On Equipment
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WARNING
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1-A-26-1
International caution symbol (refer
to
manual):
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
indi-
cate
the
terminal which must be connected
to
ground before
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.
Frame
or
chassis terminal. A connection
to
the
frame (chassis)
of
the
equipment which normally includes all exposed metal struc-
tures.
Alternating
current
Direct current
Alternating
or
direct current
The WARNING sign denotes a hazard.
It
calls
attention
to
a pro-
cedure, practice,
or
the
like, which,
if
not
correctly performed
or
adhered
to,
could result in personal injury.
The CAUTION sign denotes a hazard.
It
calls
attention
to
an op-
erating procedure, practice,
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.
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