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CALIBRA
TION
Press
CAL
or
ESC
to exit without saving.
Note:
The replaced buffer is not removed from calibration list and it can be selected for the next
calibration points.
Clean Electrode Warning
Each time pH calibration is performed, the instrument compares the new calibration with the previously
stored one. When a significant difference is seen, the “Clean Electrode” warning message is displayed.
Clean the electrode, following the details from MAINTENANCE section, and then perform a new
calibration.
Note:
If there is no calibration data, the comparison is done with the default values.
Working with Custom Buffers
Custom buffers are set at the value of 25 °C. When calibrating with custom buffers, the buffer value
can be modified by pressing
Custom
.
Press the / keys to change the buffer value (± 1.00 pH) based on the temperature reading.
Press
Accept
to save the value or press the
ESC
key to return to the calibration screen.
Working with Mili pH Buffers
Mili pH buffers are only available if the pH resolution is set to 0.001 pH when you enter calibration.
The exact value of the mili pH buffer is reported in the label, buffers can be modified in a ± 0.020 pH
window.