Table of contents
1 About this documentation......................................................4
1.1 Purpose of the document................................................................4
1.2 Legal notices..................................................................................4
1.3 Further information.........................................................................4
2 Safety.......................................................................................5
2.1 Explanation of safety symbols ........................................................5
2.2 Foreseeable misuse .......................................................................5
2.3 Safety instructions..........................................................................6
2.4 Intended use...................................................................................7
3 The product at a glance..........................................................8
3.1 G 1500 series.................................................................................8
3.2 Display elements............................................................................8
3.3 Operating elements........................................................................9
3.4 Connections .................................................................................10
4 Measurement Basics.............................................................11
4.1 pH measurement..........................................................................11
4.1.1 Explanation...................................................................................11
4.2 Redox measurement (ORP) .........................................................11
5 Operation and maintenance.................................................12
5.1 Operating and maintenance notices..............................................12
5.2 Calibration of the pH measurement ..............................................12
5.3 Display the electrode assessment of active calibration .................13
5.4 Battery..........................................................................................14
5.4.1 Battery indicator............................................................................14
5.4.2 Changing battery..........................................................................14
6 Operation...............................................................................15
6.1 Opening the configuration menu...................................................15
