Vega VEGABAR 82 Operating Instructions Manual

Also see for VEGABAR 81: Operating instructions Operating instructions Quick setup guide Operating instructions Quick setup guide

Contents

336 Functional safety (SIL)VEGABAR 82 • Slave sensor for electronic differential pressure48046-EN-190320tems (SIS) acc. to IEC 61508 and IEC 61511. Note the specificationsin the Safety Manual.The following inputs/outputs are permitted:• 4 … 20 mA current output6.4 Safety concept of the parameterizationThe following tools are permitted for parameterization of the safetyfunction:• The integrated display and adjustment unit for on-site adjustment• The DTM suitable for the signal conditioning instrument in con-junction with an adjustment software according to the FDT/DTMstandard, e. g. PACTwareNote:For operation of the VEGABAR 82 an actual DTM Collection is re-quired. The modification of safety-relevant parameters is only possiblewith active connection to the instrument (online mode).To avoid possible errors during parameterisation in a non-safe operat-ing environment, a verification procedure is used that enables reliabledetection of parameter adjustment errors. The safety-relevant pa-rameters have to be verified after they are saved in the instrument. Innormal operating condition, the instrument is also protected (locked)against inadvertent or unauthorized parameter changes. This conceptapplies to adjustment directly on the instrument as well as adjustmentwith PACTware and DTM.To prevent unintentional or unauthorized adjustment, the set param-eters must be protected from unauthorized access. For this reasonthe instrument is shipped in locked condition. The PIN in deliverystatus is "0000".When shipped with a specific parameter adjustment, the instrumentsare accompanied by a list with the values deviating from the basicsetting.All safety-relevant parameters must be verified after a change.The parameter settings of the measurement loop must be document-ed. You can find a list of all safety-relevant parameters in the deliverystatus in chapter "Setup with the display and adjustment module"under "Additional adjustments - Reset". In addition, a list of the safety-relevant parameters can be stored and printed via PACTware/DTM.For each parameter change, the instrument must be unlocked via aPIN (see chapter "Setup steps - Lock adjustment"). The device statusis indicated by the symbol of an unlocked or locked padlock.In delivery status, the PIN is 0000.Warning:If adjustment is enabled, the safety function must be consideredas unreliable. This applies until the parameterisation is terminatedTool for operation andparameterizationSafe parameterizationSafety-relevant param-etersUnlock adjustmentUnsafe devicestatus