Voltcraft LWT-110 Bruksanvisning

Voltcraft mätning LWT-110

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Operating manual

LWT-110

Conductivity measuring device

Permanently connected stainless steel 2-pole

measuring cell

Waterproof

Precise and fast

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