SAFETY SYMBOLS
General Definitions of Safety Symbols Used On Equipment or In Manuals.
A
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.
‘i
Indicates dangerous voltage (terminals fed from the interior by
voltage exceeding 1000 volts must be so marked.)
0
Protective conductor terminal. For protection against electrical
& OK &
shock in case of a fault. Used with field wiring terminals to
indicate the terminal which must be connected to ground before
operating equipment.
0
Low-noise or noiseless, clean ground (earth) terminal. Used for
I
a signal common, as well as providing protection against
1
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)
rf7 OK A
of the equipment which normally includes all exposed metal
structures.
rL
Alternating current (power line.)
-
---
Direct (power line.)
z
Alternating or direct current (power line.)
WARNING
The WARNING sign denoles a
hazard. It calls attention to a procedure, practice,
condition or rhe like, which if not correcfly performed or adhered to, could
result in injury or death to personnel.
CAUTION
The CAUJlON sign denotes a hazard. It calls arrenrion 10 en operating procedure,
practice, condition or the like, which, if nor correctly performed or adhered 10, could
result in damage ro or desrrucrion of pan or a// of rhe product.
NOTE
The NOTE sign denotes important information. It calls attention to procedure,
praclice, condition or the like, which is essential to highlight.
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