Instruction Manual Mi 160 Bench Meter
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1 OR 2 POINT CALIBRATION
• Proceed as described in “Three-point calibration” section.
• Press the CAL key after the appropriate calibration point is accepted.
The instrument will return to measurement mode, will memorize the calibration data, and the
appropriate tags for the calibrated buffers will be displayed on the LCD only if the “disp” option
from the SETUP menu is ON (see page 32).
pH BUFFER TEMPERATURE DEPENDENCE
The 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 corresponding to the measured or set
temperature.
During calibration the instrument will display the pH buffer value at 25 °C.
TEMP
pH BUFFERS
°C
°F
1.68
4.01
6.86
7.01
9.18
10.01
12.45
0
32
1.67
4.01
6.98
7.13
9.46
10.32
13.38
5
41
1.67
4.00
6.95
7.10
9.39
10.24
13.18
10
50
1.67
4.00
9.92
7.07
9.33
10.18
12.99
15
59
1.67
4.00
6.90
7.05
9.27
10.12
12.80
20
68
1.68
4.00
6.88
7.03
9.22
10.06
12.62
25
77
1.68
4.01
9.86
7.01
9.18
10.01
12.45
30
86
1.68
4.02
6.85
7.00
9.14
9.96
12.29
35
95
1.69
4.03
6.84
6.99
9.11
9.92
12.13
40
104
1.69
4.04
6.84
6.98
9.07
9.88
11.98
45
113
1.70
4.05
6.83
6.98
9.04
9.85
11.83
50
122
1.71
4.06
6.83
6.98
9.01
9.82
11.70
55
131
1.72
4.08
6.84
6.98
8.99
9.79
11.57
60
140
1.72
4.09
6.84
6.98
8.97
9.77
11.44
65
149
1.73
4.11
6.84
6.99
8.95
9.76
11.32
70
158
1.74
4.12
6.85
6.99
8.93
9.75
11.21
75
167
1.76
4.14
6.86
7.00
8.91
9.74
11.10
80
176
1.77
4.16
6.87
7.01
8.89
9.74
11.00
85
185
1.78
4.17
6.87
7.02
8.87
9.74
10.91
90
194
1.79
4.19
6.88
7.03
8.85
9.75
10.82
95
203
1.81
4.20
6.89
7.04
8.83
9.76
10.73
