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24 MW105 & MW106 Portable Meters
3. After the first calibration point has been confirmed, the
calibrated value is displayed on the first LCD line and the
second expected buffer value on the third LCD line (i.e. pH 4.01).
The value of the first buffer is set while the second expected
buffer value is displayed blinking on the screen.
For one-point calibration, press CAL/EDIT to exit calibration. The
meter stores the calibration and returns to Measurement mode.
To continue calibrating with additional buffers, rinse and place
the pH probe tip approximately 4 cm (1 ½") into the second buffer
solution and stir gently.
If needed, use the keys to select a different buffer value.
Note: When attempting to calibrate with a different buffer (not
yet used), the previously used buffers are displayed blinking.
Follow the same steps for 2- or 3-point calibration.
Press CAL/EDIT to exit calibration. The meter stores the calibration
and returns to Measurement mode.
For improved accuracy, a minimum of 2-point calibration is
recommended.
Note: When performing a new calibration (or adding to an
existing calibration) the first calibration point is treated as an
offset. Press CAL/EDIT after the first or second calibration point
has been confirmed, and the instrument stores the calibration
data and returns to Measurement mode.
5-Point Calibration (MW106)
The 3-point calibration procedure can be continued up to 5-point
following the same steps.
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