Hanna Instruments HI 4321 - Manual (Page 29)

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Units
The user can select the desired measurement unit. The available options
are:
µ S , mS or AutoRanging .
• Use or to highlight the Units option.
• Press to confirm your selection.
• Use or to select µ S , mS or AutoRanging.
• Press to confirm your selection or press to
cancel operation.
Clear Calibration
Accessing this option, the existent conductivity calibration can be cleared (the probe cell constant will be reset to
default). If the calibration is cleared, another calibration has to be performed.
To clear calibration:
• Use
or to highlight the Clear Calibration option.
• Press to clear calibration. A pop-up menu will be displayed asking for confirmation.
• Press to confirm or press to escape without saving and return to the Calibration options.