Calibration; 1-Point Calibration - Mettler Toledo SevenEasy S20 Bedienungsanleitung

Calibration

6.4 Calibration
6.4.1

1-Point calibration

Place the electrode in a calibration buffer and press
The SevenEasy pH meter automatically endpoints when calibrating. To manually endpoint, press
The meter displays and freezes the relevant buffer value, and shows the electrode offset.
To return to sample measurement, press
6.4.2 2-Point calibration
Step 1 Perform the first point calibration as described in "1-Point calibration".
Step 2 Use distilled water to rinse the electrode.
Step 3 Place the electrode in the next calibration buffer and press
The SevenEasy pH meter automatically endpoints when calibrating. To manually endpoint, press
meter displays and freezes the relevant buffer value, updates the electrode offset and shows its slope.
To return to sample measurement, press
6.4.3 3-Point calibration
Perform the same steps as in the "2-Point calibration", then repeat steps 2 and 3 for the third point
calibration.
Note
The use of a temperature probe or electrode with a built-in temperature probe is recommended. If you
use the MTC mode, you should keep all buffer and sample solutions at the same set temperature.
To ensure the most accurate pH readings, you should perform a calibration regularly.
By pressing and holding the
played. The buffer values appear in alternating order.
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key, the number and type of buffers used for the calibration are dis-
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METTLER TOLEDO SevenEasy
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