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Orion Lab Star PH111 pH/mV Bench Meter 27
b.
When the reading is stable, the checkmark icon
is shown and the reading is solid.
Once the reading is stable, press the “Enter” key.
The meter will save the third calibration point.
Press the “Cal” key to end the calibration.
The “Cal” key can be pressed when either the
Saved or 4th Point screens is shown.
The average slope value is shown and then the
Calibration Done screen is shown.
The meter will proceed to the main measure mode.
4.1.4 pH Value vs. Temperature
The following table lists theoretical values for the Orion pH
buffers at various temperatures. Actual values displayed on
the meter may vary slightly due to rounding deviations from
the actual pH and temperature measurements.
USA Buffer Set
Temp.
(°C)
pH
1.68
Buffer
pH
4.01
Buffer
pH
7.00
Buffer
pH
10.01
Buffer
pH
12.46
Buffer
0
1.667
4.000
7.111 10.320 13.474
5
1.668
3.999
7.082 10.249 13.245
10
1.669
3.999
7.056 10.182 13.030
15
1.672
4.001
7.033 10.121 12.828
20
1.675
4.005
7.013 10.064 12.638
25
1.678
4.010
6.997 10.013 12.460
30
1.683
4.016
6.984
9.967 12.293
35
1.688
4.024
6.974
9.925 12.137
40
1.693
4.033
6.967
9.889 11.991
45
1.700
4.044
6.964
9.858 11.855
50
1.707
4.057
6.963
9.832 11.728
55
1.715
4.071
6.966
9.811 11.609
60
1.724
4.086
6.973
9.794 11.499
65
1.733
4.103
6.982
9.783 11.396
70
1.744
4.122
6.995
9.777 11.301
75
1.755
4.142
7.011
9.776 11.213
80
1.766
4.163
7.030
9.780 11.130
DIN Buffer Set
Temp.
(°C)
pH
1.68
Buffer
pH
4.01
Buffer
pH
6.86
Buffer
pH
9.18
Buffer
pH
12.46
Buffer
0
1.667
4.000
6.984
9.455 13.474
5
1.668
3.999
6.952
9.391 13.245
10
1.669
3.999
6.924
9.332 13.030
15
1.672
4.001
6.900
9.278 12.828
20
1.675
4.005
6.881
9.229 12.638
25
1.678
4.010
6.865
9.184 12.460
30
1.683
4.016
6.853
9.143 12.293
35
1.688
4.024
6.844
9.106 12.137
40
1.693
4.033
6.838
9.072 11.991
45
1.700
4.044
6.834
9.041 11.855
50
1.707
4.057
6.833
9.013 11.728
55
1.715
4.071
6.837
8.964 11.609
60
1.724
4.086
6.841
8.942 11.499
65
1.733
4.103
6.847
8.922 11.396
70
1.744
4.122
6.854
8.903 11.301
75
1.755
4.142
6.861
8.885 11.213
80
1.766
4.163
6.984
9.455 11.130
Содержание Orion Lab Star PH111
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