Hanna Instruments HI 84431 - Manual (Page 27)

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• Press Pump.
The next screen will be displayed.
• Press Start.
• After the pump calibration is started, on the upper right side of the display two animations
will be shown in order to indicate that the pump and the stirrer are working. On the lower
right side of the display is shown the amount of time that has passed since beginning of the
calibration.
• Insert the dosing tip in the appropriate guide tube holder place and insert it in the solution.
Note: The chemical reagents may be hazardous if improperly handled. Read the Material
Safety Data Sheets (MSDS) before performing the test.
• From the titrator main screen press CAL.
The instrument displays the date and time of the last electrode calibration, and the date and
time of the last pump calibration, or calibration expired messages.