11 Jun
2007
11 Jun
'07
12:56 p.m.
Chuck Guzis wrote:
On 11 Jun 2007 at 10:18, Mike Ford wrote:
The docs that I've found on the helium replenishment is that you'll go
through a bottle of helium in about 6 months (when it drops from 3300psi
to 300psi). It's hooked up to the drive (there are fittings and such)
all of the time.
Fortunately, the drive I have (6200X) uses nitrogen and the person I got
it from said that they never replaced the nitrogen the entire time the
drive was in service.
--
TTFN - Guy
Just a thought, but while He does leak out of
just about everything,
unless something is leaking in I suspect its still He around 1 atm.
It would seem that the partial pressure of He in the atmosphere is
much less than one atm, no? So, barring inward leaks, would not a
lot less than one atm. of He would be left inside?
Perhaps I've disremembered Dalton's Law or just hallucinated (seems
to happen more and more as I grow older) that I endured high school
physics?