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Problems tuning after installing new electron multiplier on Agilent 5975C

Question asked by aacos095 on Jul 6, 2020
Latest reply on Aug 21, 2020 by m4esti

My lab recently changed the filaments and installed a new electron multiplier on our Agilent 5975C. When I try to tune the peaks all seem like noise and then if gives me an error for the tune reading " Tune action Stopped: gain and offest=0 and peaks are too narrow!". An example of the noise I get during the auto tune is pictured in the attachment below. Any suggestions as to what the issue could be and how to fix it?