Hanna Instruments HI 84502 - Manual (Page 23)

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Note: • To clear a previous calibration and to return to the default value, press Clear at any
time after entering calibration mode. If Clear is invoked during the first calibration
point the instrument returns to the measurement mode.
• The Clear key is displayed only if a previous calibration exists.
P M E T S R E F F U B H p
C ° F ° 1 0 . 4 1 0 . 7 0 2 . 8 1 0 . 0 1
0 2 3 1 0 . 4 3 1 . 7 8 3 . 8 2 3 . 0 1
5 1 4 0 0 . 4 0 1 . 7 4 3 . 8 4 2 . 0 1
0 1 0 5 0 0 . 4 7 0 . 7 1 3 . 8 8 1 . 0 1
5 1 9 5 0 0 . 4 4 0 . 7 7 2 . 8 2 1 . 0 1
0 2 8 6 0 0 . 4 3 0 . 7 3 2 . 8 6 0 . 0 1
5 2 7 7 1 0 . 4 1 0 . 7 0 2 . 8 1 0 . 0 1
0 3 6 8 2 0 . 4 0 0 . 7 7 1 . 8 6 9 . 9
5 3 5 9 3 0 . 4 9 9 . 6 4 1 . 8 2 9 . 9
0 4 4 0 1 4 0 . 4 8 9 . 6 1 1 . 8 8 8 . 9
5 4 3 1 1 5 0 . 4 8 9 . 6 8 0 . 8 5 8 . 9
pH BUFFER TEMPERATURE DEPENDENCE
Temperature has an effect on pH. The calibration buffer solutions are affected by temperature
changes to a lesser degree than normal solutions. During calibration the instrument will
automatically calibrate to the pH value corresponding to the measured or set temperature.
During calibration the instrument will display the pH buffer value at 25 ºC.