Hanna Instruments HI 84100 User Manual

Page 10

START UP

• Place the instrument on a flat surface. Do not place the instrument in direct sunlight.
• Plug the titrator into an outlet with a proper ground connection and the correct voltage and

frequency. (See the label on rear panel of instrument).

• Connect the peristaltic pump tubing to the pump. (See the Pump Tube Replacement Section).
• Remove the bottle cap shipped with the reagent and replace with the bottle cap included with

the tubing set.

• Place the reagent bottle in the appropriate place on the titrator top.
• Connect the inlet tube to the reagent bottle and the outlet tube to the dosing tip.
• Turn the instrument ON using the power switch located on the rear panel of the instrument

and wait until dashes are displayed on the LCD.

• Using a clean pipette, fill the 50 mL beaker up to

50 mL mark with the wine sample.
Note: Failure to use clean pipettes will result in
erroneus readings.

• Place the stir bar in the beaker and put the beaker

in the minititrator top.

• Place the beaker into the beaker holder.
• Place the probe holder on the top of the beaker and

secure by turning clockwise.

• Rinse the ORP electrode with deionized water, open

the refill cap and immerse into the stirring sample
until the teflon reference junction is completely
submerged. Be sure that the tip of the electrode is
not in the path of the stir bar.

• Purge the titrant into a waste beaker for 1-2 seconds

to ensure that the dosing tip is filled with fresh
titrant solution.

• Insert the dosing tip into the titrant tube sleeve. IT

IS CRITICAL THAT THE TIP BE IMMERSED
APPROXIMATELY 1.5 CM (0.6”) INTO THE SOLUTION
BEING TITRATED.

• Fill the 20 mL beaker up to the 5 mL mark with the

HI 84100-53 Acid Reagent, add the contents to
the 50 mL beaker containing the wine sample.

Note: Be aware of any air bubbles in the tube it

could effect the results.

FREE SO

MEASUREMENT PROCEDURE