Siemens ET 77E Series Especificaciones descargar pdf (Pagina 4)

SD77

PREFACE

Conventions and Symbols

The following symbols may be used in this manual and may appear on the equipment. The reader should be familiar

with the symbols and their meanings. Symbols are provided to quickly alert the reader to safety related text.

Symbol Meaning

DANGER

Indicates an immediate hazardous situation which, if not avoided, will result in death or

serious injury.

WARNING

Indicates a potentially hazardous situation which, if not avoided, could result in death or

serious injury.

CAUTION

Indicates a potentially hazardous situation which, if not avoided, may result in minor or

moderate injury.

CAUTION

Indicates a potentially hazardous situation which, if not avoided, may result in property

damage.

NOTICE

Indicates a potential situation which, if not avoided, may result in an undesirable result or

state.

IMPORTANT

Identifies an action that should be taken to avoid an undesirable result or state.

Note

Identifies supplemental information that should be read before proceeding.

Electrical shock hazard – Either symbol indicates the presence of an electrical shock

hazard. The associated text states the nature of the hazard, what can happen as a result of

the hazard, and how to avoid the hazard..

Explosion hazard – Symbol indicates that the danger of an explosion hazard exists. The

associated text states the nature of the hazard, what can happen as a result of the hazard,

and how to avoid the hazard.

Electrostatic discharge – The presence of this symbol indicates that electrostatic

discharge can damage the electronic assembly.

Pinch hazard – Symbol indicates that a pinch hazard exists if correct procedures are not

followed.

Conventions and Usage Notes

Part numbers are for items ordered from the Instrumentation & Analytics Business Unit of Siemens Industry, Inc.,

except as noted.

Qualified Persons

The described equipment should be installed, configured, operated, and serviced only by qualified persons

thoroughly familiar with this manual. A copy of this manual accompanies the equipment. The current version of the

manual, in Portable Document Format (PDF), can be downloaded from the Siemens Internet site; see the

Customer/Product Support section of this manual for the address.

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