Operation
HandyLab 100
30
ba77062d02
12/2017
played. Calibration determines and stores the current values of the
zero point and slope of the electrode.
Thus, you should calibrate at regular intervals.
When do you have to
calibrate?
After connecting another combination electrode
When the calibration interval has expired
Buffer sets for
calibration
You can use the buffer sets quoted in the table for an automatic calibra-
tion. The pH values are valid for the specified temperature values. The
temperature dependence of the pH values is taken into consideration
during calibration.
No.
Buffer set *
pH values
at
1
VariCal
Any
Any
2
NIST/DIN
DIN buffers according to DIN
19266 and NIST Traceable
Buffers
1.679
4.006
6.865
9.180
12.454
25 °C
3
TEC
Technical buffers
2.000
4.010
7.000
10.011
25 °C
4
Merck 1*
4.000
7.000
9.000
20 °C
5
Merck 2 *
1.000
6.000
8.000
13.000
20 °C
6
Merck 3 *
4.660
6.880
9.220
20 °C
7
Merck 4 *
2.000
4.000
7.000
10.000
20 °C
8
Merck 5 *
4.010
7.000
10.000
25 °C
Содержание SI Analytics HandyLab 100
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