Metrohm tiamo 2.3 (process analysis) - Manual (Page 1435)

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tiamo 2.3 (for Process Analysis) ￭￭￭￭￭￭￭￭ 1419
6.7.3.3 Properties - Calibration data
Tab: Configuration ▶ Sensors ▶ Edit ▶ Properties ▶ Calibration data
Note
This tab is displayed only for sensors of the type pH electrode, ISE
electrode, conductivity sensor and Thermoprobe.
Specific calibration data for pH electrodes
Slope
Slope of the pH electrode. This value can be determined automatically
with a calibration from the linearized calibration curve or entered man-
ually. The slope of a pH electrode is available for calculations as the varia-
ble 'Command name.SLO.
Range -999.9 ... 999.9 %
Default value 100.0 %
pH(0)
After the slope, pH(0) is the second characteristic of the calibration func-
tion U = f(pH). pH(0) is the x-axis intercept of the calibration curve, i.e. it
corresponds to the pH value at 0 mV. The electrode zero point pH(0) of a
pH electrode is available as a variable 'Command name.ENP' for calcu-
lations.
Range -20.000 ... 20.000
Default value 7.000
Specific calibration data for ISE electrodes
Slope
Slope of the ISE electrode. This value can be determined automatically
with a calibration from the linearized calibration curve or entered man-
ually. The slope of an ISE electrode is available for calculations as the varia-
ble 'Command name.SLO.
Range -999.9 ... 999.9 mV
Default value 59.2/Valence mV
E(0)
E(0) is the second characteristic of the calibration function U = f(log c).
E(0) is the y-axis intercept of the calibration curve and corresponds to the
potential at log c = 0. The electrode zero point E(0) of an ISE electrode is
available as a variable 'Command name.ENP' for calculations.