User guide

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29
Operational Guide
pH Buer
Temperature
Dependence
Temperature has an eect on pH. The calibration buer solutions are
aected 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 buer value at 25 ºC.
Temp pH Buers
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