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The DO calibration screen will be displayed and the standard 0% saturation (or 0 mg/L, depending
on the currently selected measuring unit), will be automatically selected.
The hourglass icon will be shown on the display until the reading becomes stable.
When the reading is stable and within range of the selected standard, the CFM functional key is
displayed.
Press CFM to confirm the calibration point.
Press ESC to leave calibration. The instrument will return to the main screen and will memorize the
zero calibration data.
One point automatic slope calibration
It is suggested to perform the slope calibration in air. Allow the probe tip to dry.
Press CAL. The calibration menu will be displayed. Press DO to select the DO calibration. The 100%
saturation standard (or the 8.26 mg/L standard, according to the currently selected measuring unit),
will be automatically selected.
The hourglass icon will be shown on the display until the reading becomes stable.
When the reading is stable and within range of the selected buffer, the CFM functional key is displayed.
DO CALIBRATION PROCEDURE
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