Analyzer and Bench Meter
EN-13
3.2.1 Perform 1-point calibration
Select a predefined buffer group before performing the calibration. Please refer to the
Select a predefined buffer group
section above for details.
To start calibration:
1
Touch the mode area one or several times to select
pH
.
2
Touch the
icon on the screen.
3
Touch
pH
if you are using an a-AB33M1 model. Skip this step if you are using
other models.
4
Follow the instruction on the screen to rinse the electrode, place it in a calibration
buffer, stir 5 seconds, and wait for 30 seconds.
5
Press the
button when you finish the previous step to start calibration. The
icon on the screen starts to blink during the process.
Note
:
Calibration
starts with the Auto End Point Mode.
Pressing the
button during the calibration can cancel the process.
6
The meter reaches endpoint automatically. The screen will display the calibration
point pH value (e.g. 7.00) with the temperature.
a) Touch
Accept
to accept the calibration result.
b) Touch
Recalibration
if you want to re-calibrate and repeat the previous
steps.
7
If you touch
Accept
in the previous step:
a) Touch
Finish
to complete calibration, and the calibration result will be shown.
Note
:
Press the
button to exit calibration and return to measurement
screen.
Touch the
icon to print the result if you connect the meter to a
printer or a computer.
b) Touch
Next
to perform a 2
nd
calibration.
3.2.2 Perform 2-point calibration
After finishing the 1-point calibration as described above, touch
Next
to perform a 2nd
calibration.
1
Rinse the pH electrode with pure water and wipe off with tissue. Place the
electrode in the next calibration buffer, stir and wait for 30 seconds.
2
Press the
button when you finish the previous step to start the second
calibration.
3
Repeat the steps for performing the 1-point calibration
to finish the 2-point
calibration.
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