33
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 cal‑
ibration.
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 pH calibration function.
While in pH Calibration mode, the display will show current pH reading, current temperature reading
and 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 which is 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 higher accuracy, a two‑point
calibration is recommended.
Submerse the probe a minimum of 4 cm (1½”) into a buffer solution and stir gently.
Summary of Contents for GROLINE HI981421
Page 1: ...INSTRUCTION MANUAL HI981420 GROLINE MONITOR HI981421 ...
Page 18: ...18 ...
