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7890A Front inlet flow stops after injection

Question asked by stuart.tindall on Feb 12, 2020
Latest reply on Feb 13, 2020 by stuart.tindall

Hello, I have been running a method for several weeks now on my 7890A with no issues. I recently swapped out several gas tanks (He and Air) and when running the method after the hold time the front inlet pressure drops to zero. This causes the run to end. I can't think of what else might have changed over the week. I have checked for leaks and found none and all gasses are running at the right pressure. 

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