2 processing a sample series, Statistics for multiple determinations – Metrohm 840 PC Control 5.0 / Touch Control User Manual
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3
Operation
PC Control / Touch Control
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3.20.2 Processing a sample series
You can use the following functions when processing sample series:
Statistics for multiple determinations:
Activate the Statistics checkbox in the method under
Options Method and enter the Number of samples whose results
are to be used for the statistical calculations. You can carry out the
determinations individually or use the sample data silo for entering
the sample data (see below).
Note!
Only results that have been produced with the same method can be
used in the statistics.
Sample data silo: in the sample data silo you can enter the sample
data for a whole sample series and process the series in succession.
Activate the use of the sample data silo under Control (see
Section 3.17.2).
Enter the sample data in the sample data silo. You can also edit
the sample data silo "live", i.e. while a determination is being carried
out. You can define the method used to process each sample in
the sample data silo. This is not necessary if all samples are to be
processed by the same method. In this case the current method will
be used.
There are various ways of starting the determination of a sample series.
• You can start the sequence for each individual determination with
the [START] fixed key.
• You can use the autostart function, which can be activated under
Control (see Section 3.17.3). In this case the next determination will
be started automatically after the end of the previous one.
If a method is entered in the sample data silo then this method will first
be loaded and then the determination sequence will be started.
When a determination has been started a check is first made that all
devices which are necessary are connected and ready for use and
whether all the titrants are present. All the monitoring intervals for the
titrants, sensors and common variables are also checked. Then all the
method commands are processed in succession. The dialog changes
automatically to the live display (see Section 3.20.4). While a
determination is being carried out this is indicated by a moving
symbol in the status line. When all the method commands have been
processed the determination is concluded and the program switches
automatically to the Results dialog (see Section 3.18). Only if you alter
the live parameters, edit the sample data silo (Touch Control only) or if
the manual control window is open (Touch Control only) will there be no
automatic switch to the results display at the end of the determination.
You can see when the determination is finished from the status display
at the top right corner. The sample data from the processed sample