Metrohm viva 1.0 (process analysis) - Manual (Page 735)

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6 Configuration
viva 1.0 (for Process analysis)
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Calibration date
Date and time of the calibration.
Calibration method
Name of the method with which the calibration was carried out. If the cal-
ibration data has been entered manually, then manual will be shown
here.
User
Short name of the user who was logged in during calibration or who
entered the calibration data manually. If the login function was not used,
then the user logged in under Windows will be entered automatically.
History graph
The 10 last values for the selected colorimetric sensor are displayed on the
Coefficient of determination tab. As in the history table, the values are
shown in different colors:
￭ blue, if the value has been assigned automatically by a method.
￭ black, if the values have been entered manually.
If a limit value is defined, then the warning limits are shown in orange
and intervention limits in red. The value 1 is always displayed as the upper
warning and intervention limit.
[Limit values]
Opens the Limit values for colorimetric sensor - 'Sensor name' dia-
log window for the quantity selected in the graph, in which the warning
and intervention limits for the coefficient of determination can be defined
(see Chapter 6.8.3.6, page 723). These limits apply only for the graph.
No monitoring takes place during the calibration. The limits set on the
Limit values tab apply for the monitoring during the calibration (see
Chapter 6.8.3.4, page 721).
[Delete history]
Deletes the history for the colorimetric sensors.
6.8.3.6 Colorimetric sensor history - Limit values
Dialog window: Configuration ▶ Colorimetric sensors ▶ Edit ▶ Properties... ▶ His-
tory ▶ [Limit values] ▶ Limit values for colorimetric sensor - 'Sensor name'
Warning and intervention limits for the coefficient of determination can
be defined in the Limit values for colorimetric sensor - 'Sensor
name' dialog window. If you have defined the limits, then these will be
shown in the graph in orange for warning limits and red for intervention
limits. However, whether these limits are observed is not monitored, i.e., a