Front Inlet constant leak

Hi

Did you change column ferrule also or not.

Install any other column then check..

Thanks for asking!

Yes, I changed both ferrules.

May be EPC issue as carrier is controlled by EPC..Is it holding septum purge flow or not..

My guess is also EPC issue. I didn't check if it holds septum purge flow. By 'holding' do you mean stopping or keeping the flow?

If the EPC module was functioning properly before you replaced normal consumables, it's probably still working. These are not high failure parts.

Holding means if  u r keeping 3ml/min septum purge flow then it's constant on 3, not going to 2 or 1 or off...

Thanks for the point! I'll check see if the purge flow holds.

I'm not sure about the history of the equipment. I recently moved to this lab, but the last service was for a year ago and the MS source seemed pretty clean after a year. Is it possible that high He pressure from the cylinder might damage EPC? The lab owner doesn't know how to work with a two-stage manometer, and they usually keep it at 60 psi which seems too high, I suppose. I reduced it to 30 psi.

I'm not sure about the history of the equipment. I recently moved to this lab, but the last service was for a year ago and the MS source seemed pretty clean after a year. Is it possible that high He pressure from the cylinder might damage EPC? The lab owner doesn't know how to work with a two-stage manometer, and they usually keep it at 60 psi which seems too high, I suppose. I reduced it to 30 psi.

60 psi of carrier is cylinder is okay...Even u can keep 100 psi also...But 30 psi is very low...Put 60 or 80 psi of carrier cylinder...