BFB_autotune failures

Hi Bigbear,

I updated the tags but I have a couple of questions. What model MS? What Rev of SW? and how are you getting the BFB into the MS, purge or direct inject?

I am using an old 5973 running E.02.02, and purging the BFB (25 ml). Yesterday I vented and sonicated the lens in water, meoh, acetone, and hexane. I installed a new repeller and 2 filaments.I had cleaned the source in early Aug, so that's why just a rinse. No joy with the BFB_tune. I got a herb-tune that seems to be working. Some compound peaks in my 0.5 standard are splitting.

This setup used to be rock solid, but now not so much.

Do I have hardware issues, or operator errors?

BTW, we have spoken in the past.

I am using an old 5973 running E.02.02, and purging the BFB (25 ml). Yesterday I vented and sonicated the lens in water, meoh, acetone, and hexane. I installed a new repeller and 2 filaments.I had cleaned the source in early Aug, so that's why just a rinse. No joy with the BFB_tune. I got a herb-tune that seems to be working. Some compound peaks in my 0.5 standard are splitting.

This setup used to be rock solid, but now not so much.

Do I have hardware issues, or operator errors?

BTW, we have spoken in the past.

I did a lens ramp on the failed BFB_AT and the emission ramp for 50 amu was very choppy. Setting the emission at 50 amu is where the tune process fails. Could this be due to a hardware problem?

OOPS I mis spoke, the entrance lens ramp is choppy!

Venting to check connections, re rinse lenses and replace lens insulator.