Hanna Instruments HI 8711 User Manual
Page 30
30
Temperature has an effect on the pH. The calibration buffer solutions
are affected by temperature changes to a lesser degree than normal
solutions.
Please refer to the following chart to perform the pH calibration:
For instance, if the buffer temperature is 25°C (77°F), calibrate to
read on the display pH 4.01 or 7.01 or 10.01.
If the buffer temperature is 20°C, calibrate to read on the display
pH 4.00 or 7.03 or 10.06.
If the buffer temperature is 50°C, calibrate to read on the display
pH 4.06 or 6.98 or 9.82.
P
M
E
T
S
R
E
F
F
U
B
H
p
C
º
F
º
1
0
.
4
6
8
.
6
1
0
.
7
8
1
.
9
1
0
.
0
1
0
2
3
1
0.
4
8
9.
6
3
1.
7
6
4.
9
2
3.
0
1
5
1
4
0
0.
4
5
9.
6
0
1.
7
9
3.
9
4
2.
0
1
0
1
0
5
0
0.
4
2
9.
6
7
0.
7
3
3.
9
8
1.
0
1
5
1
9
5
0
0.
4
0
9.
6
5
0.
7
7
2.
9
2
1.
0
1
0
2
8
6
0
0.
4
8
8.
6
3
0.
7
2
2.
9
6
0.
0
1
5
2
7
7
1
0.
4
6
8.
6
1
0.
7
8
1.
9
1
0.
0
1
0
3
6
8
2
0.
4
5
8.
6
0
0.
7
4
1.
9
6
9.
9
5
3
5
9
3
0.
4
4
8.
6
9
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6
1
1.
9
2
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9
0
4
4
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1
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4
4
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6
7
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4
3
1
1
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4
3
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6
8
9.
6
4
0.
9
5
8.
9
0
5
2
2
1
6
0.
4
3
8.
6
8
9.
6
1
0.
9
2
8.
9
5
5
1
3
1
8
0.
4
4
8.
6
8
9.
6
9
9.
8
9
7.
9
0
6
0
4
1
9
0.
4
4
8.
6
8
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6
7
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8
7
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5
6
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4
1
1
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4
4
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6
9
9.
6
5
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8
6
7.
9
0
7
8
5
1
2
1.
4
5
8.
6
9
9.
6
3
9.
8
5
7.
9
pppppH VALUES AT VARIOUS TEMPERATURE
H VALUES AT VARIOUS TEMPERATURE
H VALUES AT VARIOUS TEMPERATURE
H VALUES AT VARIOUS TEMPERATURE
H VALUES AT VARIOUS TEMPERATURE