2.2.1 Auto Salinity Compensation ............................................................................................... 113
3. Concentration in Measurement Mode ..............................................................113
3.1 Indicators in concentration measurement screen ......................................................................... 113
3.2 Dissolved Oxygen Probe............................................................................................................... 114
3.2.1 Dissolved Oxygen Principle ............................................................................................... 114
3.2.2 Probe Care ......................................................................................................................... 115
3.2.3 Membrane Housing Replacement...................................................................................... 115
3.2.4 Membrane/O-ring Replacement (Optional Procedure) ...................................................... 116
3.2.5 Electrolyte Solution............................................................................................................. 117