Mettler Toledo M400/2(X)H Spezifikationen Seite 42

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Transmitter M400/2(X)H, M400G/2XH 42
© 03 / 2014 Mettler-Toledo AG, CH-8606 Greifensee, Switzerland Transmitter M400/2(X)H, M400G/2XH
Printed in Switzerland 30 031 683
As soon as the stabilisation criteria have been fulfilled the display changes. The display shows
now the slope calibration factor S and the offset calibration factor Z.
In case of a successful calibration, the calibration values are stored in the cal history* and taken
over (Adjust), stored in the cal history* and not taken over (Calibrate) or discarded (Abort).
* only available with ISM sensor. The values will be stored in the sensor.
If “Adjust” or “Calibrate” are chosen, the message “Calibration successful” is displayed. In any
case you will get the message “Re-install sensor” and “Press ENTER” on the display. After press-
ing “ENTER” the M400 returns to the measuring mode.
7.4.1.2 Manual Mode
Place the electrode in the buffer solution. The display shows the buffer the transmitter has recog-
nized (Point 1) and the measured value. Press [ENTER] to proceed.
The display shows now the slope calibration factor S and the offset calibration factor Z.
In case of a successful calibration, the calibration values are stored in the cal history* and taken
over (Adjust), stored in the cal history* and not taken over (Calibrate) or discarded (Abort).
* only available with ISM sensor. The values will be stored in the sensor.
If “Adjust” or “Calibrate” are chosen, the message “Calibration successful” is displayed. In any
case you will get the message “Re-install sensor” and “Press ENTER” on the display. After press-
ing “ENTER” the M400 returns to the measuring mode.
7.4.2 Two-point calibration
Enter pH calibration mode as described in section 7.1 “Enter Calibration Mode”.
Select 2 Point calibration.
Depending on the parameterized Drift control (see chapter 8.2.3.3 “pH parameters”) one of the
two following modes is active.
7.4.2.1 Auto Mode
Place the electrode in the first buffer solution and then press the [ENTER] key.
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