Setting Calibration LimitsSetting Calibration Limits
When you analyze calibration data you can set limits on the data range to be analyzed. This function is accomplished by selecting Data Limits/Time or Data Limits/Temperature from the drop-down Rescale menu or from the pop-up menu displayed after a calibration file has been opened. You can also place limits on the data by selecting the Manual button after a calibration file has been analyzed. The appropriate dialog will be displayed.
For further information, select from the following topics:
Select Data Limits/Time from the menu (drop-down Rescale menu or from the pop-up menu) to display a dialog that allows you to restrict the data points used to a certain range as follows:
Enter the Start Time, in minutes, at which you want to program to begin retrieving data. For example, a response of 2 minutes tells the program to start reading data at the second minute of the experiment. An entry of 0.00 is understood as the beginning of the experiment.
Enter the Stop Time, in minutes, at which to want the program to stop retrieving data. An entry of 0.00 is understood at the end of the experiment.
Click on OK.
The program scans the data file between the points you specify, then determines the autoscaling factors for the plot. Any data outside these limits is not plotted or analyzed, regardless of the scaling factors you select later.
To regain the entire data limits for analysis, select the Rescale/Data Limits/Full Range from the menu or Data Limits/Full Range from the pop-up menu.
Select Data Limits/Temperature from the menu (drop-down Rescale menu or from the pop-up menu) to display a dialog that allows you to restrict the data points used to a certain range as follows:
Enter the Start Temperature at which you want to program to begin retrieving data. An entry of 0.00 stands for zero degrees C, unless you also enter 0.00 as the stop temperature. If you enter 0.00 as both the start and stop temperatures, the entire data file is read.
Enter the Stop Temperature at which you want to program to stop retrieving data. An entry of 0.00 stands for zero degrees C, unless you also enter 0.00 as the start temperature (see step 1).
Enter the Delay Time, in minutes, at which you want the program to begin searching for the specified temperature range. For experiments in which the designated temperature range is cycled, the delay time option enables you to skip over earlier cycles and select data from later cycles in the experiment. For example, a delay time of 5.00 minutes tells the program to skip all data generated before the fifth minute of the experiment, even if the first five minutes contain the temperature range specified in steps 1 and 2.
Click on OK.
The program scans the data file between the points you specify, then determines the autoscaling factors for the plot. Any data outside these limits is not plotted or analyzed, regardless of the scaling factors you select later.
To regain the entire data limits for analysis, select the Rescale/Data Limits/Full Range from the menu or Data Limits/Full Range from the pop-up menu.
Select the Manual button the calibration file has been analyzed to display a dialog that allows you to restrict the data points used for reanalysis to a certain range as follows:
Enter the Lower Limit point at which you want to program to begin retrieving data.
Enter the Upper Limit point at which you want to program to stop retrieving data.
Click on OK. The analysis limits will be displayed at the closest data point to the desired values.
Right click to display the Analysis pop-up menu. Select Limits OK to perform the calibration analysis with these limits.
