Hanna Instruments HI 84529 - Manual (Page 6)

www. hannainst .com 6 Description
The HI 84529 is a low-cost easy to use, microprocessor-based automatic
minititrator and pH meter designed for the rapid and accurate analysis of
Total Titratable Acidity in Dairy Products. The HI 84529 will quickly become
a valuable tool by eliminating subjective factors including color indicators,
errors in calculations or erratic titrant additions.
The instrument benefits from Hanna’s many years of experience as a
manufacturer of quality analytical instrumentation. A clear and well-designed
user interface makes the instrument intuitive and simple to use.
By pressing the Start key in Titrator mode, the instrument will automatically
titrate the sample to the set end point, perform all necessary calculations and
display the results in the selected unit. At the end of the titration, another
titration can be started by pressing the Restart key. A dedicated HELP keys
aids in setup, calibration and troubleshooting.
Other features:
pH meter / mV meter
Stir speed control
Graphic mode to display the titration data
Data can be stored using the log feature and then exported to a USB stick or
transferred to a PC using the USB connection
Log on demand for up to 400 samples (200 pH/mV measurements; 200 for
titration results)
GLP feature, to view calibration data for the pH electrode and pump
Titratable acidity can be expressed in several units; % lactic acid (% l.a.),
degree Soxhlet Henkel (°SH), degree Dornic (°D) or degree Thörner (°TH).
Each of these units corresponds to a specific procedure used to titrate dairy
products.
Soxhlet Henkel degrees (°SH) - mostly used in Central Europe. This value is
obtained by titrating 100 mL of milk with 0.25N NaOH, using phenolphtalein
as indicator.
Description
Significance
of Use