pH measurement
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5. Press the
key or
key.
Calibration to the standard solution value at the measured temperature is performed.
The 1st point calibration ends and "7" calibration history icon lights, indicating that pH
7 calibration is complete.
The display automatically returns to the measurement screen.
6. Perform the 2nd point calibration. As with the step 1., clean the pH electrode
and immerse it in the pH 4 standard solution. As with the step 3., immerse at
least 3 cm from the tip of the pH electrode.
7. Press the
key to enter the calibration mode.
Stability judgment automatically starts and the pH icon blinks until the measured
value stabilizes. When the measured value stabilizes, the pH icon changes from the
blinking state to the lit state.
8. Then press the
or
key.
Calibration to the standard solution value at the measured temperature is performed.
The 2nd point calibration ends and "4" calibration history icon lights, indicating that
pH 4 calibration is complete.
Stabilized
key
key or
key
Stabilized
key
