Notes:
(a) The meter can perform 1–2-point customized calibration. When the 1
st
point calibration is done,
press key, the meter exits from calibration mode. This is one-point customized calibration.
(b) The meter does not have the function to recognize customized calibration solution. But it requires
the error of customized calibration solution ≤1pH, the difference between two calibration solution
≥1pH, otherwise the meter will display self-diagnostic error.
(c) The pH value of customized solution is a value in a certain fixed temperature. The meter has to
perform calibration and measurement at the same temperature to avoid error.
(d) In manual temperature compensation mode, the temperature value should be adjusted before
calibration. It can not be adjusted during calibration process.
5.5 Self-diagnosis Information
During the process of calibration and measurement, the
meter has self-diagnosis functions, see chart – 4. Diagram- 6 for detailed information.
Diagram-6
5. Submerge probe in pH7.30 buffer solution. Stir the
solution
briefly and allow it to stay in the buffer solution until
appears and stays. Press or key to
adjust measuring value to 7.30pH. Press key to
finish calibration.
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