Ports and flow paths of the pH
valve
The illustration and table below describe the different ports of and flow paths through
the pH valve, in this example labeled V9-pH.
By-pass
Primary flow path
Flow path for calibrations
Closed flow path
DescriptionPort
From Conductivity monitorIn
To Flow restrictorToR
From Flow restrictorFrR
To Outlet valveOut
Calibration portCal
To WasteW3
DescriptionFlow path
Both pH electrode and flow restrictor are by-passed.By-pass
Flow restrictor is in use and pH electrode is by-passed.Restrictor
ÄKTA avant User Manual 29035184 AE 81
3 Standard instrument modules
3.9 pH valve and pH monitor
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