Peak Width Adjust error: Gain is at minimum and the abundance is too large!

My tune signal was low, and I just changed the Electron Multiplier Horn.

I checked in Agilent website and for MS 6120 should be part#


This looks identical from the old one, except  for the color:

Once, installed, and got vacuum, I autotune. The signal boosted... maybe too much, since the autotune failed with this error message:

Did I get the wrong EM horn?

Is there any other way I can fix this?


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