8.2.4 OXYMAT 7 technical specifications ......................................................................................838.3 Technical specifications for operation in hazardous areas....................................................88A Appendix A.................................................................................................................................................91A.1 References.............................................................................................................................91A.2 Certificate...............................................................................................................................94A.3 Technical support...................................................................................................................95A.4 ESD Guidelines......................................................................................................................96A.5 Returned delivery...................................................................................................................98A.5.1 Service and support...............................................................................................................98A.5.2 Returned delivery...................................................................................................................98Index.........................................................................................................................................................101Table of contentsDevices in explosion-proof designCompact Operating Instructions, 05/2015, A5E35134047-02 5