Metrohm 844 UV/VIS Compact IC - Manual (Page 71)

3.1 «IC Net» - Terms
844 UV/VIS Compact IC / Gebrauchsanweisung 8.844.1051
59
3 Operation
This Section describes only the most important points concerning the
operation of the 844 UV/VIS Compact IC. For further details please
refer to the «IC Net» Instructions for Use and to the on-line help in the
PC program.
3.1 «IC Net» - Terms
System
In the «IC Net» software a System contains the devices set under
Settings for this system, the created time programs, the data
acquisition parameters and the methods that have been optimized for a
specific separating column and the determination to be carried out with
it. Several systems can be defined and saved as system files ( *.smt ) in
the Systems folder (see «IC Net» Software Instructions for Use, Section
4). Determinations (single determinations or using a sample table) are
started via the system.
Each system is linked to a method.
Method
A Method contains all the information necessary for data acquisition,
integration, peak evaluation and results calculation. It can be re-
garded as being a skeleton chromatogram, i.e. a chromatogram
without any data. Methods are saved as method files (
*.mtw ) in the Me-
thods folder.
Chromatogram
A chromatogram is the graphical presentation of the elution curve (sig-
nal vs. time).
Chromatograms are saved as chromatogram files (
*.chw
) in the
Data
folder. In addition to the measuring data, the chromatogram files also
contain the method parameters and system settings used for data
acquisition, processing and remote control.
3.2 Measuring operation
3.2.1 Opening a system
A system window is opened with IC Net / File / Open / System and the
selection of the required system file. It contains symbols for Data
recorder (keyboard), Watch window (screen) and all
devices that have been installed in the system. A system window for a
system with an 844 UV/VIS Compact IC is shown below: