Hanna-instruments PCA 310 Manuel d'utilisateur télécharger pdf (Page 47)

• Wait for readings to stabilize.

• Enter in “pH Menu”- “Cal. pH Probe” - “Process pH Cal.”

and enter in the

“Cal. Value” field

the reading from the

reference pH meter.

• Press “CFM” key

when the analyzer

prompt for “Over-

write pH cal. ?”.

•The analyzer checks for readings stability (see One-point

calibration) and when the value is stable the message

“Stable... press CFM” is displayed.

• Pressing “CFM” key will complete the process pH calibration.

Note: The calibration could be terminated at any time by pressing

“ESC”. In this case the new calibration is not saved and the

old one remains effective.

SET DEFAULT CALIBRATION

When a new probe is connected or for any reason the current

calibration is wrong and new calibration can’t be performed,

the default calibration values could be set. In this case the

slope is set to 59.16 mV/pH and the offset is set to 0 mV.

To accomplish that, select “pH Menu” - “Cal. pH Probe” -

“Set Default pH Cal.”

The analyzer will ask “Reset the pH cal. to default ?” and if

“CFM” key is pressed will replace the existing calibration co-

efficients with the default values.

Cal. Value:06.84 pH

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Hanna-instruments PCA 310 Manuel d'utilisateur Page 47