by
LALman » Sun Jun 27, 2021 8:42 pm
LALman wrote:
Good to know it really was just the detector and that you did not have to buy a side board. Speaking of turbo pumps, we got our 5973 in 2004 and about 7 years later had to get the turbopump rebuilt. Then we had to rebuild it again 2 years later in 2013. I hope I can get 10 years out of this one. Mine is a BOC Edwards standard turbo.
Edits: I went and looked this up in the maintenance log. Our turbopump failure rate has been worse than I remembered.
Just an update, I had my Edwards 70 standard turbopump die after a series of closely spaced power failures. An hour long one on May 23 then a series of power failures May 24 killed it off. I had a UPS on the 5973 but it only had battery for about 10 minutes. It was mainly to protect from spikes. So at least this last pump lasted 8 years.
Thanks to Benhutchinson dropping a hint a while back; I got help from Great Lakes Technical Services (GTLS). Geoff at GTLS was super helpful over the phone with support. First overnighting a turbo controller and finally after memorial day overnighting me a used Edwards EXT255 and all the parts I might need that might also have failed. Now 5973 is easily hitting 1.1E-5 at 1mL/min on helium.