Metrohm 840 PC Control 5.0 / Touch Control - Manual (Page 55)

3 Operation
PC Control / Touch Control
43
• Document message: the fact that the monitoring interval had expired
when the determination was carried out will be documented in the
determination data. The message can be viewed under
Results/More determination data/Messages (see
Section 3.18.2).
• Cancel determination: the determination sequence will stopped
and the following message shown:
Under Titer options/History the date, time and values of the last ten
titer determinations are shown in a table. Titers which have been
determined automatically are shown in green, manually entered titer
values are shown in black and marked with (m). With [Graph] you can
open a graph in which the titer values are plotted against the date of the
titer determination. With [Delete history] you can delete the
complete history if, for example, the reagent is changed or a new bottle
is opened. If multiple determinations (Statistics) have been carried out
in order to calculate the titer then only one entry will be made in the
history.
This graph corresponds to a control chart on which both warning
limits and intervention limits are shown for the titer determinations.
The values for these warning limits and intervention limits can be
entered under Graph/Limits. No automatic action is taken when these
limits are infringed.