ActionStep
In the Manual instructions dialog:5
•
Select Flowpath:pH valve, and set the pH electrode to Off-line and the Restrictor to
Off-line.
•
Click Execute.
Note the PreC pressure displayed in the Run Data pane.6
Calculate the difference between the two pressure values noted in step 4 and step 6.7
Check that the pressure difference is within the range 0.2 ± 0.05 MPa.8
If this is not the case, the Flow restrictor should be replaced, see Section 7.8.7 Replace
Flow restrictor, on page 330.
ÄKTA pure User Manual 29119969 AB 271
7 Maintenance
7.4 Monthly maintenance
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