Hanna Instruments HI 84431 - Manual (Page 29)

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Verify: The instrument has been calibrated (pH and pump) before performing a lot of
titrations. An electrode calibration in at least one point (8.30 pH buffer) is recommended.
• Refer to Setup Configuration Menu (see the “Setup” section)
to set up instrument for your measurement.
• Sample preparation: For all measurement samples fill
a beaker up to the 50 mL mark with sample. Place the
stir bar into the beaker and then place the beaker in the
appropriate place on the instrument top.
Note: Water samples must be collected and stored in capped
botlles.
• Position the electrode holder on the top of the beaker and
secure it by turning clockwise.
• Immerse the pH and the temperature electrodes
approximatively 2 cm (0.8”) into the sample to be tested
paying attention not to touch the stir bar. Use O-Rings
provided to secure the pH electrode in holder.
• Insert the dosing tip in the appropriate holder place and
insert it in the sample.
• From the titrator main screen press Titration. To enter
titrator main screen from pH meter mode press Titrator
and then Continue.
• Press Start to begin the titration process.
TITRATION PROCEDURE