Titration procedure – Hanna Instruments HI 84429 User Manual
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Verify:
The instrument has been calibrated (pH and pump) before performing a titration. An
electrode calibration in 8.30 pH buffer is recommended.
• Refer to Setup Configuration Menu (see page 13) to set up instrument for your measurement.
• Select the corresponding Low Range or High Range according to the table bellow.
• Sample preparation: For Low Range measurement fill a
beaker up to the 50 mL mark with sample. For High Range
measurement use the 20 mL beaker to measure 10 mL of
sample. Put the sample in the 50 mL beaker. Fill the beaker
up to 50 mL with deionized water. Place the stir bar into the
beaker and then place the beaker in the appropiate place on
the instrument top.
• Place the electrode holder on the top of the beaker and secure
it by turning clockwise.
• Immerse the pH, reference 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 electrodes in holder.
• Insert the dosing tip in the appropriate holder place. Do not
immerse tip into solution.
TITRATION PROCEDURE
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