Xylem HandyLab 680 - Manual (Page 50)

Operation HandyLab 680
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Note
For single-point calibration, the instrument uses the Nernst slope
(-59.2 mV/pH at 25 °C) and determines the zero point of the IDS pH
sensor.
6 Start the measurement with <MENU/ENTER>.
The measured value is checked for stability (stability control).
The [AR] status indicator is displayed. The measured parame-
ter flashes.
7 Wait for the end of the measurement with stability control or
accept the calibration value with <MENU/ENTER>.
The calibration display for the next buffer appears (voltage dis-
play).
8 If necessary, finish the calibration procedure as a single-point
calibration with <M>.
The calibration record is displayed.
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