Hanna Instruments HI 84102 - Manual (Page 14)

14
• Turn the instrument ON using the power switch from
the rear panel of the instrument.
• Fill the 50 mL beaker up to the 50 mL mark with
Buffer Solution 1 (7.00 pH) or Buffer Solution 2
(8.20 pH).
• Place the pH electrode into solution and press the
CAL button. The CAL message will appear blinking
along with pH value.
• Press START STOP in order to start the electrode
calibration.
• At the end of the calibration procedure done appears
for a few seconds and then the meter automatically
returns to measurement mode.
pH CALIBRATION PROCEDURE
PUMP CALIBRATION PROCEDURE
The calibration of the pump must be performed each time the pump tube, the reagent bottle or the pH
electrode is changed. It is recommended to perform the pump calibration before each set of measurements.
• To prepare the sample for calibration, follow the
measurement procedure for Total Titratable Acidity
measurements by using HI 84102-55 Total Titratable
Acidity Standard instead of wine sample.
• After sample preparation, press the CAL PUMP button.
Std will blink on the screen.
The pH calibration must be performed each time the pH electrode is changed.