Hanna Instruments HI 84529 - Manual (Page 36)

www. hannainst .com 36 Operational Guide
For 20 g and 20 mL samples add deionized
or distilled water to the 60 mL mark.
Place the stir bar in the beaker and put
the beaker in the mini titrator top.
Place the probe holder on the top of the
beaker and secure it by turning clockwise.
Rinse the pH electrode, reference electrode
and temperature probe with deionized
water and immerse it roughly 1.5 cm (0.6”)
into the sample. Be sure that the tip of the
electrode is not hitting the stir bar. Insert
the dosing tip into the titrant tube sleeve.
IT IS CRITICAL THAT THE TIP BE IMMERSED
APPROXIMATELY 0.25 CM (0.1") INTO THE
SOLUTION BEING TITRATED.
Press CONTINUE to begin the titration
and STOP to abort it.
The instrument will continuously update
the concentration on the display. The
value will be displayed blinking. When
the reading is under range “----” symbol
appears blinking.
The titration curve can be visualized
during a titration by pressing Plot ON.
Press Plot OFF or ESC to exit this mode.
Titration
Procedure