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• The pH calibration slope (the GLP slope is the average of the calibration
slopes; the percentage is referred to the ideal value of 59.16 mV/pH).
• The pH calibration buffers in calibrating order.
The first pH calibration buffer:
The second pH calibration buffer:
The third pH calibration buffer:
Note: • The “OLd” message displayed beside the pH value means that
this buffer was not used during last calibration. Press and hold
down SET/CLR if you want to see calibration date (or time if old
calibration was made in the same day with current calibration).
• If “no bUF” message appears on the LCD, the instruments inform
you that calibration was performed in less than three points.
• pH resolution during calibration.
• Calibration Alarm Time-Out status:
if disabled.
CAL pH
BUF
CAL pH
BUF
%
CAL
CAL
BUF
CAL
CAL pH
BUF