Error 2150

Question

We have been having an issue with our 7700 ICP-MS plasma turning off, when going to use it the EM failed to tune (it tuned fine a few days earlier), then after running a few standards it reported a 1213 error 48V power supply to low. When i went to try and diagnose/reproduce the error, the plasma wouldn't stay on giving an error code 2150, which i haven't seen before. I am not certain what could be causing this the orifices on the cones are clear (replaced with in the past month), any help would be appreciated.

Tom Herzog · Answer

Hello, 
 Error 1213 typically comes with other errors that truly describe the issue, like the 2150 error you are getting. 
 First, check the cone orifices. Use a microscope or powerful magnifying glass. If they are clogged or salted over, clean. The opening should be a round, smooth hole. If jagged or out of round, replace the cone. 
 That 2150 error could also point to water in the transfer tube or torch. Check that the spray chamber is not full of water. That there are no water droplets in the glass tube connecting spray chamber to the torch, or in the torch injector. The situation you describe sounds like this is the issue. It takes a while for the spray chamber to fill up so plasma will stay on during warmup and when it got to EM setting it was full and water got to the plasma and shut it down. Each attempt to restart it might light or only sputter, but turns off shortly after, this is the water droplets in the connector or torch preventing it staying on.