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pH, mV & ISE MODE
In ATC mode, the pH value can be modified by pressing .
If the Automatic buffer entry type was selected for the calibration procedure, the
instrument will automatically select the closest buffer to the measured pH value from
the edit buffer group (see section 7.1.2.4 Buffer Group Edit).
If the Semiautomatic buffer entry type was selected for the calibration procedure, the
instrument will automatically select the closest buffers to the measured pH value from
all the available buffers and the buffer value can be selected with
or .
CALIBRATION MESSAGES:
• Wrong Buffer. Please check the buffer: This message appears when the difference
between the pH reading and the value of the selected calibration buffer is significant. If
the message is displayed, check if you have selected the appropriate calibration buffer.
• Wrong buffer temperature: This message appears if the buffer temperature is out
of the defined temperature range.
• Clean the electrode or check the buffer. Press to update calibration:
This message alerts the user that some dirt or deposits could be on the electrode.
• Slope too low. Please check the buffer: This message appears if the current
slope is under 80% or over 110% of default slope. Recalibrate the instrument using
fresh buffers.
• Slope too high. Press to clear the old calibration: This message appears
as a result of an erroneous slope condition. Follow displayed instructions.
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