IFM Electronic LK8122 - Default Chapter; Table of Contents

2
Contents
1 Preliminary note ...................................................................................................4
1.1 Symbols used ................................................................................................4
2 Safety instructions ...............................................................................................4
3 Functions and features ........................................................................................5
3.1 Applications ...................................................................................................5
3.2 Restriction of the application area ................................................................5
4 Getting started .....................................................................................................6
4.1 Example configuration 1 ................................................................................6
4.2 Example configuration 2 ................................................................................7
5 Function ...............................................................................................................8
5.1 Measuring principle .......................................................................................8
5.2 Operating principle / features of the unit ........................................................8
5.2.1 Operating modes ..................................................................................9
5.2.2 Notes on the integrated overflow prevention ........................................9
5.2.3 Display and switching functions ..........................................................10
5.2.4 Offset for indicating the real level in the tank ...................................... 11
5.2.5 Defined state in case of a fault ........................................................... 11
5.2.6 IO-Link function .................................................................................. 11
6 Installation .........................................................................................................13
6.1 Notes on installation instructions for operation with overflow prevention ...14
6.2 Installation instructions for operation without overflow prevention ..............15
6.2.1 Installation in the inactive zone ...........................................................15
6.2.2 Installation in the active zone .............................................................16
6.3 Further notes on installation / accessories ..................................................17
6.3.1 Marking of the installation height ........................................................17
7 Electrical connection ..........................................................................................18
8 Operating and display elements ........................................................................20
9 Menu ..................................................................................................................21
9.1 Menu ............................................................................................................21
10 Parameter setting ............................................................................................22
10.1 Parameter setting in general .....................................................................22
10.2 Basic settings ...........................................................................................23