Editing Values In A Table; Calibration; Running A One-Point Ph/Ion Calibration (Only Sg98); Running A Multi-Point Ph/Ion Calibration (Only Sg98) - Mettler Toledo SevenGo pro Mode D'emploi

4.7.3 E diting values in a table
The meter has a feature, which allows the user to enter, edit or remove values in tables. (for exam-
ple, temperature and buffer values for a customized buffer group). This is accomplished by using
the softkeys on the display to navigate from cell to cell.
1 Press READ to start editing the cell in the table.
2 Press
3 Navigate to a cell and press Delete to remove a value.
4 To finish editing the table, navigate with the
5 Press READ to confirm the action and exit the menu.
4.8 C alibration
The meter allows you to perform pH and ion calibrations for up to 5 points (only SG98) and DO
cal i b ra t ions for up to 2 points.
4.8.1 R unning a one-point pH/ion calibration (only SG98)
1 Press and hold MODE for 3 seconds to switch to single channel pH or ion measurement
screen when in dual channel measurement.
2 Place the electrode in a calibration buffer and press CAL.
3 The meter endpoints according to the preselected endpoint mode after the signal has stabilized
or after pressing READ.
4 Press End to accept the calibration and return to sample measurement.
5 Press Save to keep the calibration.
6 Press EXIT to reject the calibration.
With the one-point calibration only the offset is adjusted. If the sensor was previously calibrat-
ed with a multipoint calibration the previously stored slope will remain. Otherwise, the theoretical
slope (-59.16 mV/pH) will be used.
4.8.2 R unning a multi-point pH/ion calibration (only SG98)
pH and ion calibrations can be run with this meter for up to 5 points.
1 Run the calibration as described in "Running a one-point pH/ion or one-point conductivity cal-
i b ra t ion" (steps a - c).
2 Rinse the electrode with deionized water.
3 Place the electrode in the next calibration buffer.
4 Press CAL.
51710917_V02.2011_BA_SG9_98_EnFrEs.indb 17
The softkeys on the display change.
and to enter the value and press READ to confirm.
The softkeys change back to
Cal 1 appears on the display.
The relevant buffer value is shown on the display.
The calibration result (offset and slope for pH) is shown on the display.
— or —
Cal 2 appears on the display. The meter endpoints according to the preselected endpoint
mode after the signal has stabilized or after pressing READ. The relevant buffer value is
shown on the display.
Operating the pH/ORP/Ion/DO meter SG98 and DO meter SG9
and .
and to highlight Save.
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