Metrohm 873 Biodiesel Rancimat Manual - Manual (Page 125)

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873 Biodiesel Rancimat ￭￭￭￭￭￭￭￭ 117
r 2
Calculated correlation coefficient. If this value is below the limit value (see
"Setting the correlation limit", page 115) specified by the administrator a
warning appears when opening the extrapolation window.
Time
Result of the extrapolation for the target temperature in hours and years.
Target temperature
Target temperature for the extrapolation.
Number of determinations
Number of determinations used for the extrapolation.
Standard factor
Value determined from the regression straight line which indicates the factor
by which the time changes per 10 °C. This value can be entered in the for-
mula for the determination of the standard time as a factor (see "Calculation
of standard time", page 105).
[Settings]
Open the dialog window Program settings. The extrapolation parameters
are to be entered in the tab Extrapolation (see ""Extrapolation" tab", page
135).
[Update]
Update graphics and result display. This function has to be carried out if the
selection of determinations in the determination overview or the settings for
the extrapolation have been changed.
[Detail]
Display only the area with the results of the determinations in the graph.
4.7.5 Recalculating a determination
For a determination, you can recalculate the Induction time, the Stability
time, the Formulas and the Standard time.
Recalculating the induction time
Proceed as follows to recalculate the induction time:
1 Open dialog window
￭ Select the determination which is to be recalculated (see "Selecting
determinations", page 86).
￭ Click on the menu item Determination ▶ Recalculation.