Xylem ProLab 3000 Manual de usuario Pagina 74

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pH ProLab 3000
74
ba75645e03 12/2012
* Brand names or trade names are trademarks of their respective owners
protected by law (see page 190).
Calibration points Calibration can be performed using one to five buffer solutions in any
order (single-point to five-point calibration). The measuring instrument
determines the following values and calculates the calibration line as
follows:
19 Reagecon TEC * 2,000
4,010
7,000
10,000
25 °C
20 Reagecon 20 * 2,000
4,000
7,000
10,000
13,000
20°C
21 Reagecon 25 * 2,000
4,000
7,000
10,000
13,000
25 °C
22 Riedel-de Haen * 2,000
4,000
7,000
10,000
20°C
No. Buffer set * pH values at
Note
The buffers are selected in the Calibration sensor menu (see
page 71).
Displayed calibration data
1-point Zero point
Slope = Nernst slope (-59.16 mV/pH at 25 °C)
2-point Zero point
Slope
3-point to
5-point
Zero point
Slope
The calibration line is calculated by linear regression.
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