62 For your safetyVEGAMET 391 • With SIL qualification38704-EN-170907carried out only by personnel authorised by the manufacturer. Arbi-trary conversions or modifications are explicitly forbidden. For safetyreasons, only the accessory specified by the manufacturer must beused.To avoid any danger, the safety approval markings and safety tips onthe device must also be observed and their meaning looked up in thisoperating instructions manual.2.5 Safety label on the instrumentThe safety approval markings and safety tips on the device must beobserved.2.6 EU conformityThe device fulfils the legal requirements of the applicable EU direc-tives. By affixing the CE marking, we confirm the conformity of theinstrument with these directives.You can find the EU conformity declaration on our website underwww.vega.com/downloads.Electromagnetic compatibilityThe instrument is designed for use in an industrial environment.Nevertheless, electromagnetic interference from electrical conductorsand radiated emissions must be taken into account, as is usual with aclass A instrument according to EN 61326-1. If the instrument is usedin a different environment, its electromagnetic compatibility with otherdevices must be ensured by suitable measures.2.7 SIL conformityThis instrument fulfills the requirements of functional safety accordingto IEC 61508. You can find further information in the supplied SafetyManual.2.8 Installation and operation in the USA andCanadaThis information is only valid for USA and Canada. Hence the follow-ing text is only available in the English language.Installations in the US shall comply with the relevant requirements ofthe National Electrical Code (ANSI/NFPA 70).Installations in Canada shall comply with the relevant requirements ofthe Canadian Electrical Code2.9 Safety instructions for Ex areasPlease note the Ex-specific safety information for installation and op-eration in Ex areas. These safety instructions are part of the operatinginstructions manual and come with the Ex-approved instruments.