GE AKTA avant User Manual page 296

7 Maintenance
7.6 Maintenance when required
7.6.2 Perform System CIP
Step
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Action
Open the System Control module, on the System menu, click Calibrate.
Result: The Calibration dialog opens.
In the Calibration dialog, in the Monitor to calibrate list, click pH.
Click Prepare for calibration.
Result: The pH valve switches to the calibration position.
Fill a syringe with approximately 10 ml of 1 M NaOH. Connect the syringe to
the pH valve port Cal, and inject the solution. Leave the cleaning solution in
place for 20 minutes.
Fill a syringe with distilled water. Connect the syringe to the pH valve port
Cal, and inject the distilled water.
Click Close.
Result: The pH valve switches back to the default position and the Calibration
dialog closes. No calibration is performed.
ÄKTA avant User Manual 29035184 AE