Agilent GC Status (Agilent 7890)

[jamaica1953]

Hi!
Please, tell me how to get Agilent GC Status (temperatures, pressures) as a table or as a plot (time dependence)?

[tlahren]

Depending on the version of software you have (Chemstation D.02 and later I think) you can set up real-time GC "monitors" in the Instrument Display. I think to plot them over time you would have to write a macro that stores the data to a .csv file. There may be someone in this forum who is better than I at writing these types of macros.

Ty

[GasMan]

The GC version of the Chemstation, versions B and C, allow any signal to be set up as you wish. The ChemStation will allow 4 signals to be plotted and saved as a data file. Normally you select a detector as the signal source, but any temperature zone , pressure or flow source can also be set up as a signal. You must be in the Method and Run Control screen. Click on Instrument\Edit Agilent 7890 Parameters\. In the resulting window, click on the 'Signals' icon. This will show a 'tab' where you can select the signal source for each signal. If you click in this box, you get a drop down menu, and one of the items will be "Diagnostics". Select this and you will see all of the zones etc. When you start the run, if you have selected 'Oven Temp', as the signal source, you will get a trace of the oven temp with time. This will be saved in your data file, so you can always recall it and then it printout.

Gasman

[tlahren]

Thanks for the info Gasman. I wonder if this works the same for MSD Chemstation rev D.02 and E.02? I suppose it would. I've never tried.

Ty