Safety Symbols - HP 3456A Operating And Service Manual

Ganaral Oalinitions
Instruction manual symbol: the product will be marked with this
Lt:,
symbol when it is necessary for the useT to refer
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
OR
dicate 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
rh .l.
e equipment
th
OR
tures.
Alternating current (power
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
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
destruction of part or all of the product.
The NOTE sign denotes important information. It calls attention
N OTE:
to procedure, practice, condition or the like, which is essential to
highlight.

SAFETY SYMBOLS

01 Salaty Symbols Usad On Equipmant or In Manuals.
normally includes all exposed metal struc­
which
linc).
the instruction
10
the frame (chassis) of
10
or
10