Metrohm 914 pH / Conductometer - Manual (Page 6)

Table of contents
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IV ￭￭￭￭￭￭￭￭
pH Meter/Conductometer
4 Operation 21
4.1 Switching the instrument on and off ............................... 21
4.2 Displays ............................................................................... 21
4.3 Status displays .................................................................... 24
4.3.1 Battery status ........................................................................ 24
4.3.2 User rights ............................................................................. 24
4.3.3 Sensor quality for pH electrodes ............................................ 25
4.4 Control keys ........................................................................ 25
4.5 Basic operation ................................................................... 26
4.5.1 Main dialog with two measuring channels ............................. 26
4.5.2 Main dialog with one measuring channel ............................... 27
4.5.3 Operation in the main dialog ................................................. 28
4.5.4 Menu dialog .......................................................................... 29
4.5.5 Editing dialog ........................................................................ 30
4.5.6 Selection dialog ..................................................................... 32
4.6 Menu structures .................................................................. 33
4.6.1 912 Conductometer .............................................................. 34
4.6.2 913 pH Meter ........................................................................ 35
4.6.3 914 pH/Conductometer IS ..................................................... 36
4.6.4 914 pH/Conductometer ......................................................... 37
4.7 Menu dialogs ...................................................................... 38
4.7.1 Parameters pH/U/T and Parameters pH/U/T IS ........................ 38
4.7.2 Parameters Κ/TDS/Sal/ρ/T ...................................................... 39
4.7.3 Measured values .................................................................... 40
4.7.4 Sensors .................................................................................. 42
4.7.5 Report ................................................................................... 47
4.7.6 Configuration ........................................................................ 48
4.7.7 User ...................................................................................... 49
4.8 pH measurement ................................................................ 50
4.8.1 pH electrode calibration ......................................................... 50
4.8.2 Measurement ........................................................................ 52
4.9 Conductivity measurement ................................................ 53
4.9.1 Determination of the cell constant (calibration) ...................... 53
4.9.2 Measurement ........................................................................ 54
4.10 Outputting reports/measured values ................................ 56
4.10.1
Printing out ........................................................................... 56
4.10.2 PC/LIMS and CSV data transfer .............................................. 56
5 Operation and maintenance 59
5.1 General notes ...................................................................... 59
5.1.1 Care ...................................................................................... 59
5.1.2 Maintenance by Metrohm Service .......................................... 59
5.1.3 Sensor care ............................................................................ 59
5.2 Quality management and qualification with Metrohm . . 60