Metrohm 912 User Manual

Table of contents
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IV
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912/913/914 Meter
4 Operation 21
4.1 Switching the instrument on and off ................................ 21
4.2 Displays ............................................................................... 21
4.3 Status displays .................................................................... 25
4.3.1 Rechargeable battery status ................................................... 25
4.3.2 User rights ............................................................................. 25
4.3.3 Sensor quality for pH electrodes ............................................. 25
4.3.4 Sensor status for DO sensors ................................................. 26
4.4 Control keys ........................................................................ 26
4.5 Basic operation ................................................................... 27
4.5.1 Main dialog with two measuring channels ............................. 27
4.5.2 Main dialog with one measuring channel ............................... 30
4.5.3 Operation in the main dialog ................................................. 31
4.5.4 Menu dialog .......................................................................... 32
4.5.5 Editing dialog ........................................................................ 33
4.5.6 Selection dialog ..................................................................... 34
4.5.7 Changing the user ................................................................. 35
4.6 Menu structures .................................................................. 36
4.6.1 912 Conductometer .............................................................. 37
4.6.2 913 pH Meter ........................................................................ 38
4.6.3 913 pH/DO Meter ................................................................. 39
4.6.4 914 pH/Conductometer ......................................................... 40
4.6.5 914 pH/DO/Conductometer ................................................... 41
4.7 Menu dialogs ...................................................................... 42
4.7.1 Parameters pH/U/T and Parameters pH/U/T IS ......................... 42
4.7.2 Parameters Κ/TDS/Sal/ρ/T ...................................................... 43
4.7.3 Parameters DO ...................................................................... 44
4.7.4 Measured values .................................................................... 46
4.7.5 Sensors .................................................................................. 48
4.7.6 Report ................................................................................... 55
4.7.7 Configuration ........................................................................ 56
4.7.8 User ...................................................................................... 57
4.8 pH measurement ................................................................ 58
4.8.1 pH electrode calibration ......................................................... 58
4.8.2 Measurement ........................................................................ 60
4.9 Conductivity measurement ................................................ 61
4.9.1 Determination of the cell constant (calibration) ...................... 61
4.9.2 Measurement ........................................................................ 62
4.10 Oxygen measurement ........................................................ 64
4.10.1 Calibration ............................................................................. 64
4.10.2 Measurement ........................................................................ 65
4.11 Issuing reports/measured values ....................................... 66
4.11.1 Printing out ........................................................................... 66
4.11.2 PC/LIMS and CSV data transfer .............................................. 67

Metrohm 912 Specifications

General

Brand	Metrohm
Model	912
Category	Measuring Instruments
Language	English