PSD 1 Purge Flow Reduced Error

I am attempting to run a headspace GC method (GC 8890)and I have set all front inlet SS parameters as per an in-house method. Helium is the set carrier gas. When I go to run a sequence on MassHunter, the error stating PSD 1 Purge Flow Reduced appears. Once dismissed all inlet parameters return to the desired setpoints. How can I stop the purge flow from decreasing as soon as I attempt to inject a sample? 

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  • Hello 
    Thank you for your reply

    If a leak were to be present wouldn't the pressure/flow be low overall? In addition to the inlet setpoints, the purge flow for the EPC PSD 1  is constant at the set point when the GC is idle. As soon as I go to run a sample this is where it drops.


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