Chapter 4 System menu
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ORP calibration
When it is ORP mode, the ORP calibration function can be used. The calibration
points can be selected from 1 to 2 points. The specific calibration steps are as
follows:
ORP 1-point calibration: Select 1 point for calibration point, press [ENT] to
enter the ORP 1-point calibration interface, change the standard value on
the interface to the theoretical value of the current ORP standard buffer
solution, and then put the ORP electrode into the ORP standard buffer
solution. After the actual measurement value is stable, press [ENT] to
confirm the calibration and return to the menu interface.
ORP 2 point calibration: Select 2 points for calibration point, press [ENT]
to enter the first point interface of the ORP 2 point calibration, change the
standard value on the interface to the current theoretical value of the first
ORP standard buffer solution, and then put the ORP electrode into the first
ORP standard buffer solution. After the actual measurement value is stable,
press [ENT] to confirm the calibration and enter the second point interface
of ORP 2-point calibration. Change the standard value on the interface to
the current theoretical value of the second ORP standard buffer solution,
and then put the ORP electrode into the second ORP standard buffer
solution. After the actual measurement value is stable, press the [ENT] key
to confirm the calibration and return to the menu interface.
Antimony calibration
When it is antimony mode, antimony calibration function can be used. The
calibration point can be selected from 1 to 3 points. The specific calibration steps
are the same as those of pH calibration. An antimony electrode is required for
measurement.
