Too High of Signal EM setting

Hi,

this is a very nasty mass axis.

Could you please confirm, that you have S-Lenses installed, as they are configured.

Please have a look, through this troubleshooting guide and follow the instructions. Hopefully it will solve your problems, or at least we have a better inside where to search.

Best Regards

Chris

Hi,

this is a very nasty mass axis.

Could you please confirm, that you have S-Lenses installed, as they are configured.

Please have a look, through this troubleshooting guide and follow the instructions. Hopefully it will solve your problems, or at least we have a better inside where to search.

Best Regards

Chris

Hello, thanks for the reply. I was told by the trainer sent by Agilent in October that it was an S lens. I attached a picture. 
I tried to go through the low sensitivity pdf a while back, but got stuck on 1.2.2 because there is no option to "Add to Queue" in our software. I have not been able to find a way to run startup manually, only automatically after the plasma warmup. Any ideas on that?
I will poke around on the software more when I get a chance, but it is an old version and is a bit clunky.
I/resized-image/__size/1280x960/__key/communityserver-discussions-components-files/45/20231003_5F00_092705.jpg

Hello, 

has a work around when using S-lense you can dilute the tune solution 1ppb to 2-10 times.  (may need experiment) This should fix the resolution and axis problem.  You can try for EM another mass instead of Mass 80, try 56, 37, 78 to tune the EM if possible.  

Hmm, thanks I will try this.

I started working through the pdf. On step 1, it asks if 12, 56, 80 are zero when using pure (which I assume means 18 megaohm) water. Technically they are not, they are around 30 counts. So I proceeded to Step 1.2.1 (finally found the add to queue, it's under the hardware pane in my version of MH, in case that's helpful to someone else). I then got an error about being unable to set the resolution axis. 
My questions are: Should I consider 30 counts zero?

                              Does pure water mean 18 megaohm/Millipore deionized?

Thanks.

You definitely need to worry about the 30 counts. Millions are normal. Has anything been done around the quadrupole recently?

And I usually agree with ulrichntaniel, but I wouldn't do the EM tuning with a mass other than 80.

You are not using "custom tune with override hardware settings" do you?

No, that option was not checked in the Masshunter configuration.
I did clean the cones and now I see about ~1500 counts for 12 & 56, ~150 for 80. 
It looks like we need a new sampling cone. Is it possible that is the entire issue?