Varian 3800 Saturn 2000 MS

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Varian 3800 Saturn 2000 MS

: WK

: Posts: 468; Joined: Wed Sep 01, 2004 10:19 am

by WK » Thu Oct 04, 2012 12:44 pm

Dear All,
Does anyone know - is it possible to use hydrogen in this system as a replacement for helium?
Regards
WK

I'm Sorry I Haven't A Clue - Just A Minute - The Unbelievable Truth

Re: Varian 3800 Saturn 2000 MS

: HbJ

: Posts: 238; Joined: Sun Oct 29, 2006 1:46 am

by HbJ » Fri Oct 05, 2012 8:42 am

I'm using hydrogen for our ITS40s, Magnums and Saturn IIs so it should work for you too.

I just recommend to vent the MS with a dry inert gas like nitrogen or argon.

Re: Varian 3800 Saturn 2000 MS

: WK

: Posts: 468; Joined: Wed Sep 01, 2004 10:19 am

by WK » Fri Oct 05, 2012 12:59 pm

Hi Hbj,
Thanks for the reply. How do you "vent" the trap with inert gas?
Add a small flow through the CI line??
Regards
WK

I'm Sorry I Haven't A Clue - Just A Minute - The Unbelievable Truth

Re: Varian 3800 Saturn 2000 MS

: HbJ

: Posts: 238; Joined: Sun Oct 29, 2006 1:46 am

by HbJ » Sat Oct 06, 2012 4:43 am

I meant venting to atmospheric pressure in case of an emergency or scheduled downtime for maintenance.

Venting with inert gas eliminates the theoretical possibility of a hydrogen explosion that might happen when air is used as vent gas. In fact, Finnigan did require the customer to connect the vent line to either nitrogen or helium. Otherwise, no on-site support was provided.

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