6
2 For your safety
VEGAFLEX 82 • 4 … 20 mA/HART - two-wire
44222-EN-170220
You can find 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 different environment, the electromag-
netic compatibility to other instruments must be ensured by suitable
measures.
2.6 SIL qualification 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 specification of the safety requirements, multiple SIL
levels are specified according to safety standard IEC 61508. You can
find detailed information in chapter "
Functional safety (SIL)
" of the
operating instructions.
The instrument meets the specifications of IEC 61508: 2010 (Edi-
tion 2). It is qualified 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 field instrumentation.
The device fulfils 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 field devices and display/adjustment
components
•
NE 107 - Self-monitoring and diagnosis of field 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.