Quantum-composers LDDC 1550 Manuel d'utilisateur télécharger pdf (Page 31)

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Safety Symbols

This section provides a description of the safety marking symbols that 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.

Symbols Publications; Descriptions & Comments

IEC 417, No. 5031

Direct current - VDC may be used on rating labels.

IEC 417, No. 5032

Alternating current - For rating labels, the symbol is typically

replaced by V and Hz as in 230V, 50Hz. DO NOT USE Vac.

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 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 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. 5007

On (Supply) - Note that this symbol is a bar, normally applied in the vertical

orientation. It is not the number 1.

IEC 417, No. 5008

Off (Supply) - Note that this symbol is a true circle. It is not the number 0 or the

letter O.

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Quantum-composers LDDC 1550 Manuel d'utilisateur Page 31