User Guide

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USEUSE
USEUSE
USE
HI 305N
HI 315N
APPLICATIONSAPPLICATIONS
APPLICATIONSAPPLICATIONS
APPLICATIONS
1. Newtonian fluids up to
2.5 litres.
2. Non-Newtonian fluids
up to 5 litres whose
viscosities change
during stirring or
Newtonian fluids up to 5
litres or mixing opera-
tion where load
changes during stirring
The pH meter incorporated in the stirrer should
be calibrated before using.
Calibration:Calibration:
Calibration:Calibration:
Calibration:
1. Connect the pH electrode and temperature
probe to the stirrer. For refillable electrode,
lower the sleeve from the pH electrode to
reveal the refill hole.
2. Connect power cable and switch on power
supply. Then switch the stirrer on with the
ON/OFF switch (L).
3. Immerse the electrode and temperature
probe into pH 7.01 buffer solution and wait
one minute. Turn the OFF/ºC/pH knob (H) to
ºC to display temperature and note the
temperature of the buffer solution.
4. Turn the OFF/ºC/pH to display pH
measurement and adjust the OFFSET knob
(J) until the LCD (I) displays the pH value at
the noted temperature in accordance to
Table 4, eg. if the temperature of the buffer
is 20ºC, adjust the OFFSET knob to display
7.03 pH.
5. Rinse the pH electrode thoroughly in water
and immerse in pH 4.01 or pH 10.01 buffer
solution.
istrstirR2.p65
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6. Wait one minute and adjust the SLOPE
knob (K) until the buffer value corresponding
to the noted temperature of the buffer is
displayed.
The calibration of pH is now completed and the
stirrer is ready for use.
STIRRERS WITH pH METER FOR MANUALSTIRRERS WITH pH METER FOR MANUAL
STIRRERS WITH pH METER FOR MANUALSTIRRERS WITH pH METER FOR MANUAL
STIRRERS WITH pH METER FOR MANUAL
TITRATIONTITRATION
TITRATIONTITRATION
TITRATION
The HI 3050N is specially developed for manual
titration, particularly used for the educational
and field analysis. It combines an accurate
ATC pH meter and a magnetic stirrer. When the
pH reading is within 0.5 pH of the user-selected
set point, an audible alarm will alert the opera-
tor, allowing time to decrease the dosage of the
reagent.
Model: HI 3050N