Hanna-instruments HI 9912 Manuel d'utilisateur télécharger pdf (Page 18)

Please refer to the following chart for a more accurate pH calibra-

tion:

For instance, if the buffer temperature is 25°C (77°F), calibrate the

meter to read 4.01, 7.01 or 10.01 on the display.

If the buffer temperature is 20°C, calibrate it to 4.00, 7.03 or

10.06.

If the buffer temperature is 50°C, calibrate it to 4.06, 6.98 or 9.82.

pHpH

VALUES AT VARIOUS VALUES AT VARIOUS

VALUES AT VARIOUS

TEMPERATURESTEMPERATURES

TEMPERATURES

TEMP pH VALUES

°C °F 4.01 6.86 7.01 9.18 10.01

104

113

122

131

140

149

158

4.01

4.00

4.01

4.02

4.03

4.04

4.05

4.06

4.07

4.09

4.11

4.12

6.98

6.95

6.92

6.90

6.88

6.86

6.85

6.84

6.83

6.84

6.85

7.13

7.10

7.07

7.04

7.03

7.01

7.00

6.99

6.98

6.99

9.46

9.39

9.33

9.27

9.22

9.18

9.14

9.10

9.07

9.04

9.01

8.99

8.97

8.95

8.93

10.32

10.24

10.18

10.12

10.06

10.01

9.96

9.92

9.88

9.85

9.82

9.79

9.77

9.76

9.75

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 27 28

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Hanna-instruments HI 9912 Manuel d'utilisateur Page 18

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