DP5008.3.2.1.4.3 SD-CardMain menu Settings Device settings SD-Card Reset Logger DatabaseMain menu Settings Device settings SD-Card Erase SdCard8.3.2.1.4.4 System updateImportant!System update can only be done with power supply connected to ensure there is a continuouspower supply during the update.38The summer and winter time switchover isrealized by pushing the Daylight Savingbutton.By pressing Reset Logger Database all actualstored data on SD-Card will be blocked for use inDS 400. Nevertheless all data are still stored andavailable for external use only.By pressing EraseSdCard all Data on the SD-Card will be deleted.