GE AKTA avant User Manual page 383

Quaternary valve
Problem
Wrong mixing ratio for
Quaternary valve
Unexpected values for
e.g., pH curve or con-
ductivity curve using a
quaternary flow
ÄKTA avant User Manual 29035184 AE
Possible cause and action
The sum of the flow from inlet Q1-Q4 is not equal
•
to 100% of the total flow
Make sure that the sum of the flow from inlet Q1-Q4
is equal to 100% of the total flow.
The switch valve is not opened and closed correctly
•
Perform Performance test according to ÄKTA avant
Unpacking Instructions. Check result and, if necessary,
generate a System error report and contact Service.
8 Troubleshooting
8.4 Troubleshooting: Valves
383