Human interface Display and operating elements .... .......................................................................................................................................................................................................................................................... .............................................................................................................................................................................................................................................................. ...................................................................................................................................................................................................................................................................... .................................................................................................................................................... ................................................................................................................ ................................................ ............................................................................................................................................................................................................................................................ Remote operation .... .......................................................................................................................................................................................................................................... .................................................................................................................................................................................................................... Certifi cates and approvals CE mark .... ................................................................................................................................................ .................................................................................................... .......................................................................... ATEX/IECEx II1G Ex ia IIC T6/T5/T4 .................................................................... ...................... ...................... ...................... ............ ............ II3G Ex nA II T6/T5/T4 .................................................................... .................... Output ............................ Temperature range Ta .............................. .. .... .. .... .. .... .................. ................................................................ ............................................................ ............................................................ ............ ............................................................ ............................................................ ............................................................ .......................... .... .. .... .. .... ............................................................ ............................................................ ............................................................ 8