Table of contents
2 / 26 B-H87.0.02.DB214-1.0
Table of contents
1 Legal address of the manufacturer................................................................................................... 4
2 About this documentation ................................................................................................................. 5
2.1 Foreword............................................................................................................................................... 5
2.2 Purpose of the document...................................................................................................................... 5
2.3 Correctness of content.......................................................................................................................... 5
2.4 Layout of this document........................................................................................................................ 5
2.5 Further information ............................................................................................................................... 6
3 Safety ................................................................................................................................................... 7
3.1 Explanation of safety symbols .............................................................................................................. 7
3.2 Foreseeable misuse ............................................................................................................................. 7
3.3 Safety instructions ................................................................................................................................ 7
3.4 Intended use ......................................................................................................................................... 8
3.5 Qualified personnel............................................................................................................................... 8
4 Description .......................................................................................................................................... 9
4.1 Scope of delivery .................................................................................................................................. 9
4.2 Job description...................................................................................................................................... 9
5 The product at a glance ................................................................................................................... 10
5.1 The LWT-110...................................................................................................................................... 10
5.2 Display elements ................................................................................................................................ 10
5.3 Operating elements ............................................................................................................................ 10
6 Bases for measurement ................................................................................................................... 12
6.1 Conductivity principles ........................................................................................................................ 12
6.2 Conductivity measurement ................................................................................................................. 12
6.3 Measurement of specific resistance ................................................................................................... 12
6.4 Electrodes / measuring cell................................................................................................................. 12
6.4.1 Design and selection .......................................................................................................................... 12
6.4.2 Calibration / adjustment of the measuring cell.................................................................................... 13
6.5 Temperature compensation................................................................................................................ 13
6.5.1 NLF temperature compensation according to EN 27888.................................................................... 13
6.5.2 Linear temperature compensation LIN ............................................................................................... 13
7 Maintenance ...................................................................................................................................... 15
7.1 Operating and maintenance notices ................................................................................................... 15
7.2 Battery ................................................................................................................................................ 15
7.2.1 Battery indicator.................................................................................................................................. 15
7.2.2 Changing battery ................................................................................................................................ 15
8 Operation........................................................................................................................................... 17
8.1 Commissioning ................................................................................................................................... 17
8.1.1 Explanation ......................................................................................................................................... 17
8.2 Configuration ...................................................................................................................................... 17
8.2.1 Explanation ......................................................................................................................................... 17
8.2.2 Opening the configuration menu......................................................................................................... 17
8.2.3 Configuring parameters of the configuration menu............................................................................. 18
8.2.4 Adjustment of the measuring input ..................................................................................................... 19
8.2.5 Configuring parameters of the adjustment menu................................................................................ 20
