BUCHI DuMaster D-480 - Manual (Page 89)

Operation Manual D-480 ©BÜCH Labortechnik AG
5 - Work performed by the system administrator 89
When does it make sense to edit analysis data?
Reasons for modifying analysis data
The following reasons exist to edit analysis data:
 If old calibration coefficients only exist as a hardcopy and you want to load them, you can
manually input the calibration coefficients.
 If you have created a template of the sample data for the measurements and you need to enter
the samples still to be measured in the template.
 If you input blank values manually because, for example, the blank value of the sample packing
is already known.
Limits for modifying analysis data
Inserting and deleting lines
You cannot insert lines or delete lines between finished samples.
Editing sample data
You cannot edit the data of finished samples by simply clicking on the respective fields. You can
recognize finished samples by the fact that they are above the current sample, which is highlighted by
a green bar in the sample view. You can only edit finished samples by selecting Edit > Change; if 21
CFR Part 11 functionality is enabled, this creates a new version.
Consequences of modifying analysis data
Commenting changes
If 21 CFR Part 11 functionality is enabled, the user must comment on certain changes.
Versioning
If 21 CFR Part 11 functionality is enabled, a new version of the document is created as soon as an
analyzed sample is changed. The original version of the document is then write-protected.
Recomputing
After performing certain changes, you must update the calculations of the samples by selecting Math.
> Recalculate. The changes include:
 Manual blank value input.
 Subsequent review of calibration, specifying that standard samples should be displayed as
monitor samples and no longer as calibration samples.
 Changing the sample name.