7.7.1 Calibrate the pH monitor
Maintenance interval
Calibrate the pH monitor once a day, when the pH electrode has been replaced, or if the
ambient temperature has changed by more than 5°C.
Required material
Use two pH calibration buffers with a difference of at least one pH unit. Preferably use
a pH standard buffer, pH 4 or pH 7, as the first calibration point, and a pH standard buffer
close to the lowest or highest pH you need to measure as your second point. Allow the
buffers to equilibrate to ambient temperature before use.
Instruction
CAUTION
pH electrode. Handle the pH electrode with care. The glass tip may
break and cause injury.
Follow the instructions to perform the calibration.
ActionStep
Open the System Control module. On the System menu, click Calibration.1
Result: The Calibration dialog box opens.
ÄKTA avant User Manual 29035184 AE 321
7 Maintenance
7.7 Calibration procedures
7.7.1 Calibrate the pH monitor
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