Metrohm 840 PC Control 5.0 / Touch Control - Manual (Page 164)

3.20 Determination sequence
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PC Control / Touch Control
3.20 Determination sequence
This section provides a description of how to carry out a
determination, i.e. how to process a single sample or a sample
series. The determination sequence is defined in the method. When a
determination is started the current method is processed line by line.
The current sample data is used for calculations.
3.20.1 Carrying out a single determination
If you wish to process a single sample then proceed as follows:
Load the method with which the sample is to be processed (see
Section 3.15.1).
Enter the sample data in the main dialog (see Section 3.19.1).
Start the determination sequence with the [START] fixed key.
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.
In case results of the determination are saved in the result silo they will
be copied into the result silo at the end of the determination (see
Section 3.22).
If you have switched on the use of the sample assignment table (see
Section 3.14.2) then a check will be made at START whether the
identification which has been selected as the assignment identification
is present in the sample assignment table. If this is so then the
assigned method will be loaded automatically and the determination
itself will be started. If the automatic request for the assignment
identification is switched on this will be requested first.