Contents4PREFACE.......................................................................................................................................................... 3IMPORTANT NOTES ...................................................................................................................................... 12Validity of this manual................................................................................................................................... 12General safety information ........................................................................................................................... 12Explanation of symbols................................................................................................................................. 12SAFETY INSTRUCTIONS .............................................................................................................................. 13Connections.................................................................................................................................................. 13Proper use .................................................................................................................................................... 13Mechanical loadbearing capacity ................................................................................................................. 13FUNCTIONS.................................................................................................................................................... 14Functions ...................................................................................................................................................... 14Functions overview....................................................................................................................................... 15DISPLAYS, OPERATING ELEMENTS AND CONNECTIONS ...................................................................... 16Front panel.................................................................................................................................................... 16Rear panel .................................................................................................................................................... 17Observing angle of the on screen display .................................................................................................. 18OPERATING CONCEPT................................................................................................................................. 19The screen.................................................................................................................................................... 19Frequently recurring softkeys ..................................................................................................................... 19General information for operation................................................................................................................. 20Menu selection ........................................................................................................................................... 20The main menu........................................................................................................................................... 20OPERATION ................................................................................................................................................... 21Place of installation of the MSK 33............................................................................................................... 21Mains voltage / mains switch........................................................................................................................ 21On/Off switch .............................................................................................................................................. 21Safety fuse.................................................................................................................................................. 21ACCUMULATOR AND BATTERY OPERATION........................................................................................... 22Accumulator operation.................................................................................................................................. 22DC socket (option)........................................................................................................................................ 22CONNECTIONS .............................................................................................................................................. 23