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Operational Guide
pH Buer
Temperature
Dependence
Temperature has an eect on pH. The calibration buer solutions are
aected 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 buer value at 25 ºC.
Temp pH Buers
ºC ºF
4.01 7.01 8.20 10.01
0 32
4.01 7.13 8.38 10.32
5 41
4.00 7.10 8.34 10.24
10 50
4.00 7.07 8.31 10.18
15 59
4.00 7.04 8.27 10.12
20 68
4.00 7.03 8.23 10.06
25 77 4.01 7.01 8.30 10.01
30 86
4.02 7.00 8.17 9.96
35 95
4.03 6.99 8.14 9.92
40 104
4.04 6.98 8.11 9.88
45 113
4.05 6.98 8.08 9.85
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