
Transmitter M300 47
© 12 / 11 Mettler-Toledo AG, CH-8606 Greifensee, Switzerland Transmitter Multiparameter M300
Printed in Switzerland 52 121 389
7.5.2.1 AutoMode
Place the electrode in the buffer solution and press the [ENTER] key to start the calibration.
The display shows the buffer the transmitter has recognized (Point 1) and the measured value.
As soon as the stabilisation criteria have been fulfilled, the display changes and prompts you to
place the electrode in the second buffer.
Place the electrode in the second buffer solution and press the [ENTER] key to go on with the
calibration.
The display shows the second buffer the transmitter has recognized (Point 2) and the measured
value.
As soon as the stabilisation criteria have been fulfilled, the display changes to show the slope
calibration factor S and the offset calibration factor Z.
Select Yes to save the calibration values and the successful Calibration is confirmed on the dis-
play. If an ISM sensor is connected, the calibration data will be stored in the sensor.
You will get the message ”Re-install sensor” and ”Press Enter” on the display. After pressing
”Enter” the M300 returns to the measuring mode.
7.5.2.2 ManualMode
Place the electrode in the first buffer solution. The display shows the buffer the transmitter has
recognized (Point 1) and the measured value. Press [ENTER] to proceed.
Place the transmitter in the second buffer solution. The display shows the buffer the transmitter
has recognized (Point 2) and the measured value. Press [ENTER] to proceed.
The display shows the slope calibration factor S and the offset calibration factor Z.
Select Yes to save the calibration values and the successful Calibration is confirmed on the dis-
play. If an ISM sensor is connected, the calibration data will be stored in the sensor
You will get the message ”Re-install sensor” and ”Press Enter” on the display. After pressing
”Enter” the M300 returns to the measuring mode.
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