Thermo Fisher Scientific Alpha pH 200 (In the process of updating the brand guideline & product image) - Manual (Page 27)

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9.6 Viewing Calibration points: pH or ORP – P4.0
Setup program P4.0 lets you view the current points at which the controller is
calibrated. This is a “view only” parameter.
P4.1: first calibration point
P4.2: second calibration point (pH only)
When controller has no calibration points in memory, the display will show “-------“.
Press ▲ and ▼ keys together (ESCAPE) at anytime, to leave the Setup mode
and return to Measurement mode.
P4.0: Viewing calibration points
1.
Key in the password “022” as per procedure in Section 5.
2. Press ▲ key three times. The screen will scroll P4.0 and CAL. Press
ENTER.
3. The screen will scroll P4.1, then CAL, then the first calibration point.
4. Press ENTER.
In pH mode. The screen will display P4.2, then CAL, then the second
calibration point.
In ORP mode, the screen returns to the general Setup menu.
5. If you are in pH mode, press ENTER again to confirm and return to general
Setup mode.
Press ▲ and ▼ keys together (ESCAPE) to return to measurement mode.