GE AKTA avant - Page 383

Quaternary valve
Possible cause and actionProblem
•
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.
Wrong mixing ratio for
Quaternary valve
•
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.
Unexpected values for
e.g., pH curve or con-
ductivity curve using a
quaternary flow
ÄKTA avant User Manual 29035184 AE 383
8 Troubleshooting
8.4 Troubleshooting: Valves