
26
CALIBRA
TION
If necessary, press the / keys to select a different buffer value.
The “ ” tag is displayed blinking until the reading has stabilized. When the reading is stable
and within range of the selected buffer, the
CFM
functional key is displayed.
11. Press
CFM
to confirm. The instrument stores the calibration values and returns to measurement
mode.
Four-, Three- or Two-Point Calibration
1. Follow the steps described in five-point calibration procedure.
2. Press
CAL
or
ESC
after the appropriate accepted calibration point. The instrument returns to
measurement mode and memorizes the calibration data.
One-Point Calibration
Two selectable options are available for one point calibration: “Replace” and “Offset” (see METER
SETUP section for details).
1. Follow the steps described in Five-Point Calibration procedure
2. Press
CAL
or
ESC
after first calibration point is confirmed. The instrument saves the calibration
point and returns to measurement mode.
Notes:
Press MTC or MODE key to toggle between pH buffer selection and the temperature
reading during calibration in MTC mode (temperature probe not connected).
The arrow symbols are displayed next to the temperature value. Press the
/
keys to change
the temperature.
Calibration Error & Warning Messages
Wrong Buffer
The calibration cannot be confirmed. The pH reading is not within the range of the selected buffer.
Select another buffer using the / keys or change the buffer.