Datasheet

Getting Started 5 Tour through the Clarity station
5.2 Running the Sequence measurement
Sequence operation allows automated measurement of large numbers of
samples for chromatographs equipped with autosamplers. Clarity
provides the possibility to select an ACTIVE (start controlled by the station)
or PASSIVE (start controlled by the autosampler) sequence. It is also
possible to re-process already measured sequences.
Note: It is not necessary to have the AS Control module to use the
autosampler; start synchronization can be performed even without it.
However, the control module can add direct control from Clarity for
automated sending of vial positions, injection volumes, etc., without the
need to program the AS itself.
This chapter and the demo project prepared on the Instrument 1 will lead
you through Sequence, Calibration and Method Setup windows used for
automated measurement and preparation of template methods.
5.2.1 Sequence window
l In the main Clarity window, open Instrument 1 (With the label My GC+AS).
l In the displayed Login dialog with the pre-selected Administrator user
press the OK button.
l
Use the Sequence button in the Instrument window to enter the
Sequence window.
Fig 15: Sequence window
l Look at the Sequence Table. Each row of this table defines one or more
analyses, depending on the fields SV (Starting vial), EV (Ending vial) and
I/V (Injections per vial) . As it can be seen, the first four rows each
present a single measurement (SV and EV is the same, I/V is 1), while row
5 represents eight analyses (SV is 5, EV is 8, thus measuring 4 samples
from 4 successive vials, and I/V parameter is 2 - each sample will be
measured twice).
l Also, note that in the fields Std and Lvl the first four samples are marked
as standards on levels 1-4. These will be used for automatic making of the
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