Quantum Composers 9250 Series - Manual (Page 49)

9250 Manual Version 1.2 | Quantum Composers
49
12. Appendix D – Safety Symbols
Safety Marking Symbols
This section provides a description of the safety marking symbols that may appear on the
instrument. These symbols provide information about potentially dangerous situations which
can result in death, injury, or damage to the instrument and other components.
Symbol Publication Description/Comment
IEC 417, No. 5031
Direct current.
IEC 417, No. 5032
Alternating current.
IEC 417, No. 5033
Both direct and alternating current
IEC 617-2
No. 02-02-06
Three-phase alternating current
IEC 417, No. 5017
Earth (ground) terminal. Primarily used for functional
earth terminals which are generally associated with test
and measurement circuits. These terminals are not for
safety earthing purposes but provide an earth reference
point.
IEC 417, No. 5019
Protective Earthing conductor terminal. This symbol
is specifically reserved for the protective conductor
terminal and no other. It is placed at the equipment
earthing point and is mandatory for all grounded (Class
I) equipment .
IEC 417, No. 5020
Frame or chassis terminal. Used for points other than
protective conductor and functional earth terminals
where there is a connection to accessible conductive
terminals to advise the user of a chassis connection.
IEC 417, No. 5021
Equipotentiality Used in applications where it is
important to indicate to the operator that two or more
accessible functional earth terminals or points are
equipotential.
IEC 417, No. 5007
On (Supply)
IEC 417, No. 5008
Off (Supply)