30
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 corre-
sponding to the measured or set temperature.
T E M P
p H V A L U
º C
º F
1 .6 8
4 .0 1
6 .8 6
7 .0 1
0
3 2
1 .6 7
4 .0 1
6 .9 8
7 .1 3
5
4 1
1 .6 7
4 .0 0
6 .9 5
7 .1 0
1 0
5 0
1 .6 7
4 .0 0
6 .9 2
7 .0 7
1 5
5 9
1 .6 7
4 .0 0
6 .9 0
7 .0 4
2 0
6 8
1 .6 8
4 .0 0
6 .8 8
7 .0 3
2 5
7 7
1 .6 8
4 .0 1
6 .8 6
7 .0 1
3 0
8 6
1 .6 8
4 .0 2
6 .8 5
7 .0 0
3 5
9 5
1 .6 9
4 .0 3
6 .8 4
6 .9 9
4 0
1 0 4
1 .6 9
4 .0 4
6 .8 4
6 .9 8
4 5
1 1 3
1 .7 0
4 .0 5
6 .8 3
6 .9 8
5 0
1 2 2
1 .7 1
4 .0 6
6 .8 3
6 .9 8
5 5
1 3 1
1 .7 2
4 .0 7
6 .8 4
6 .9 8
6 0
1 4 0
1 .7 2
4 .0 9
6 .8 4
6 .9 8
6 5
1 4 9
1 .7 3
4 .1 1
6 .8 5
6 .9 9
7 0
1 5 8
1 .7 4
4 .1 2
6 .8 5
6 .9 9
During calibration the instrument will display the buffer value at 25 °C.
pH VALUES AT DIFFERENT
TEMPERATURES