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OPERA
TIONAL GUIDE
After saving the calibration the monitor returns to
MENU
.
Pressing
Escape
can exit the Quick calibration without saving data.
If the standard is not recognized or the offset is out of
accepted range "Wrong Standard" is displayed. Refresh
the calibration solution, clean and rinse the probe or press
Escape
to exit calibration.
6.1.2. pH CALIBRATION
If you are measuring in the acidic range, use pH 7.01 as the first buffer and pH 4.01 as the second
buffer. If you are measuring in the alkaline range, use pH 7.01 as the first buffer and pH 10.01 as
the second buffer.
Select pH from
MENU
and press
CAL
to enter the pH calibration function.
While in pH Calibration Mode, the display will show the current pH reading, the current temperature
reading and the current buffer:
The following functions are available in pH Calibration Mode:
•
Clear:
Press to clear the last calibration from the monitor. After confirming, the “Calibration
cleared” message is displayed.
Note: The GLP history will show “Calibration cleared” message with the date.
•
Confirm:
Press to accept the current calibration point. Only available if the measurement is
stable and within the limits for the selected buffer.
•
Escape:
Press to exit calibration and return to
MENU
.
Procedure
Calibration can be performed using one or two calibration buffers. For more accurate
measurements, a two‑point calibration is recommended.
Submerse the probe a minimum of 4 cm (1½”) into a buffer solution and stir gently.