Table of contents
 1  Introduction ................................................................................................................................... 7
 1.1  Read the safety instructions and the manual ........................................................................ 7
 1.2  This is what operating instructions look like .......................................................................... 7
 1.3  This is what lists look like ......................................................................................................... 7
 1.4  This is what warnings look like ................................................................................................ 7
 1.5  Hotline ......................................................................................................................................... 8
 2  Safety instructions ........................................................................................................................ 9
 2.1  General instructions .................................................................................................................. 9
 2.2  Intended use ............................................................................................................................... 9
 2.3  Initial inspection ......................................................................................................................... 9
 2.4  Before operational startup ..................................................................................................... 10
 2.4.1  Installation .................................................................................................................... 10
 2.4.2  Opening the device ..................................................................................................... 11
 2.4.3  Supply voltage connection ......................................................................................... 12
 2.4.4  Protective ground connection ................................................................................... 13
 2.4.5  RF interference suppression ...................................................................................... 14
 2.4.6  Failure and excessive stress ....................................................................................... 14
 2.4.7  Important note ............................................................................................................ 14
 2.4.8  Repairs and maintenance .......................................................................................... 14
 3  Device description ....................................................................................................................... 16
 3.1  General information ................................................................................................................ 16
 3.2  Overview of the device ............................................................................................................ 16
 3.2.1  Communication protocols .......................................................................................... 17
 3.3  Housing ..................................................................................................................................... 17
 3.3.1  Control panel housing ................................................................................................ 17
 3.3.2  Table-top housing ....................................................................................................... 19
 3.3.3  Indicator front .............................................................................................................. 21
 3.3.4  Overview of connections ............................................................................................ 23
 4  Device installation ....................................................................................................................... 28
 4.1  General instructions ................................................................................................................ 28
 4.2  Mechanical preparation .......................................................................................................... 29
 4.2.1  Storage and transport conditions ............................................................................. 29
 4.2.2  Installation location ..................................................................................................... 29
 4.2.3  Unpacking ..................................................................................................................... 29
 4.2.4  Checking the equipment supplied ............................................................................ 30
 4.2.5  Acclimatizing the device ............................................................................................. 30
 4.2.6  Cable gland and Cable connection ........................................................................... 30
 4.2.7  EMC-compliant installation ........................................................................................ 33