Vega VEGAFLEX 82 - SIL Qualification and Standards

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2 For your safety
VEGAFLEX 82 • 4 … 20 mA/HART - two-wire
44222-EN-170220
YoucanndtheEUconformitydeclarationonourwebsiteunder
www.vega.com/downloads.
Electromagnetic compatibility
Instruments in four-wire or Ex-d-ia version are designed for use in an
industrial environment. Nevertheless, electromagnetic interference
from electrical conductors and radiated emissions must be taken into
account, as is usual with class A instruments according to EN 61326-
1.Iftheinstrumentisusedinadierentenvironment,theelectromag-
netic compatibility to other instruments must be ensured by suitable
measures.
2.6 SILqualicationaccordingtoIEC61508
The Safety Integrity Level (SIL) of an electronic system is used to as-
sess the reliability of integrated safety functions.
Fordetailedspecicationofthesafetyrequirements,multipleSIL
levelsarespeciedaccordingtosafetystandardIEC61508.Youcan
nddetailedinformationinchapter"Functional safety (SIL)" of the
operating instructions.
TheinstrumentmeetsthespecicationsofIEC61508:2010(Edi-
tion2).Itisqualiedforsingle-channeloperationuptoSIL2.The
instrument can be used homogeneously redundant up to SIL3 in
multi-channel architecture with HFT 1.
2.7 NAMUR recommendations
NAMUR is the automation technology user association in the process
industry in Germany. The published NAMUR recommendations are
acceptedasthestandardineldinstrumentation.
ThedevicefullstherequirementsofthefollowingNAMURrecom-
mendations:
•
NE 21 – Electromagnetic compatibility of equipment
•
NE 43 – Signal level for fault information from measuring transduc-
ers
•
NE53–Compatibilityofelddevicesanddisplay/adjustment
components
•
NE107-Self-monitoringanddiagnosisofelddevices
For further information see www.namur.de.
2.8 Installation and operation in the USA
This information is only valid for USA. Hence the following text is only
available in the English language.
Installations in the US shall comply with the relevant requirements of
the National Electrical Code (ANSI/NFPA 70).
Wiring methods must conform to all local and national codes govern-
ing the installation, and wiring must be rated for at least +10 °C above
the highest expected ambient temperature.