Calibration; Running A One-Point Ph/Ion Calibration (Only Sg98); Running A Multi-Point Ph/Ion Calibration (Only Sg98); Automatic Buffer Recognition (Only Sg98) - Mettler Toledo SevenGo pro Instrucciones De Montaje

The softkeys change back to
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 Calibration

The meter allows you to perform pH and ion calibrations for up to 5 points (only SG98) and DO calibrations for
up to 2 points.

4.8.1 Running 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.
Cal 1 appears on the display.
3 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.
4 Press End to accept the calibration and return to sample measurement.
The calibration result (offset and slope for pH) is shown on the display.
— or —
5 Press Save to keep the calibration.
6 Press EXIT to reject the calibration.
Note
With the one-point calibration only the offset is adjusted. If the sensor was previously calibrated with a
multipoint calibration the previously stored slope will remain. Otherwise, the theoretical slope (-59.16 mV/pH)
will be used.

4.8.2 Running 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 calibration"
(steps a - c).
2 Rinse the electrode with deionized water.
3 Place the electrode in the next calibration buffer.
4 Press CAL.
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.
5 Repeat the steps b - d for all calibration buffers.
6 Press End to end the calibration procedure.
Alternatively, the meter ends the calibration automatically when 5 calibrations are performed. The offset
value and slope are shown on the display.
7 Press Save to keep the calibration.
8 Press EXIT to reject the calibration.
Note
Up to 5 calibrations can be saved for a dedicated sensor ID. The oldest calibration data is automatically
overwritten with the current calibration data.

4.8.3 Automatic buffer recognition (only SG98)

The meter features automatic pH buffer recognition for the predefined buffer groups (see "Appendix"). The
buffers within a buffer group are automatically recognized by the meter and displayed during calibration.
This feature allows the calibration in any order within a predefined pH buffer group.
SevenGo (Duo) pro™/OptiOx™
and .
and to highlight Save.
Operating the pH/ORP/Ion/DO meter SG98 and DO meter SG9​ ​ 15