Creating A Column Compensation Profile; Making A Run Using Analog Output Column Compensation - Agilent Technologies 7890 Series Advanced Operation Manual

Creating a column compensation profile

Making a run using analog output column compensation

Making a run using digital output column compensation
Advanced Operation Manual
Set up the instrument for a run.
1
Make a blank run to verify that the baseline is clean. This
2
is particularly important for new conditions or if the GC
has been idle for several hours.
Press [Column Comp].
3
Select Col comp 1 or Col comp 2 (these are the two arrays).
4
Select Start compensation run and press [Enter].
5
If the run is successful, the first line of the parameter list
6
will say Data ok, and a time and date will appear at the
bottom.
Set the chromatographic conditions. They must be
1
identical to those in the stored column compensation run
except that Final time in the last ramp of the oven
program can be longer or shorter.
Press [Analog Out 1] or [Analog Out 2].
2
Scroll to Type and press [Mode/Type].
3
The choices for an analog signal are:
4
Front detector
Back detector
Front - column comp 1
Front column compensation 1
Back column compensation 1
Aux 1 column compensation 1
Aux 2 column compensation 1
Test plot
5 Choose an option from the list.
Enter setpoints for Zero and Range, if applicable.
6
Start your run.
7
1 Set each detector output separately.
Press [Config][Detector name]. Scroll to Signal and press
2
[Mode/Type]. Select from:
No Column Compensation
Detector - ColComp 1
Detector - ColComp 2
7
GC Output Signals
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