Error Condition Setting and/or Postrun Command Macro Issue?

[ZAP]

My Agilent 1200/Chemstation system shuts down during a run without displaying an error message. Log states it was pressure related but I don't see that error message on my screen. I THINK it may be related to the postrun command macro or maybe even the error condition settings? Not much in the manual about how to view and/or change these. I am actively looking for info on this problem and could use a hand.

[nimbi63]

In Method and Run Control view, select Method > Run Time Checklist. See if there is anything in the "Post-Run Command / Macro" line? If there is, and you suspect the macro / Command listed, uncheck the box and try a sequence.

In the M&RC view, select View > Logbook > Sequence Logbook and see if it has any other info. Also check the Current Logbook. What exactly is the messages listed in the logbooks?

[ZAP]

Hi nimbie63,
I have checked the logbook and the module G1311A states "pressure above upper limit" and a module in sequence states "terminated due to an error". The system shuts down when both of these things occur but there is no pop-up on the system control screen that shows an error, no red box, no text. The runtime checklist does not have the post run command macro set.
The Agilent 1200 at previous job had some indicator on the system control screen. Must be a setting?

[nimbi63]

I suppose it's possible that the pump goes over pressure limit, shuts down, turns the pump red on the screen, then when the pressure drops, the red indicator on the screen changes back to normal.

In Method and Run Control, Instrument > Set Up Pump, what is the Pressure Limits > Max setting?

You could, as a test, set a low Max setting, then start a flow gradient to trigger over pressure, and see what it does. Does it go red, then change back after pump shut down?

Maybe the flow system needs a good flushing (without column), pre-column filters need changing, etc.

[ZAP]

Yes, you may be right. I'll go try a low pressure setting and see what happens.

[ZAP]

I checked and the pressure limits are set by the operator according to the column pressure limit for each method. I think you may be right about the component going red then back to normal. I'm all over that.

Now I have the forum set to notify me if I get a reply so hopefully it won't take so long to get back to your replies. I'm a newbie here.