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Date: | Fri, 25 May 2001 08:40:56 -0400 |
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Steve, thanks. I think I need a cabinets for the weekend jerky making
as supplement income...
jk
-----Original Message-----
From: Stephen R. Gregory [mailto:[log in to unmask]]
Sent: May 24, 2001 8:10 PM
To: [log in to unmask]
Subject: Re: [TN] Moisture Sensitive Components
Hi Guy!
I'm like you, the physics make me feel a little lightheaded too. But, we
fairly recently bought some desiccant cabinets from McDry, and they keep
the
humidity down to 4% inside the cabinets...and that's here in Oklahoma,
we see
humidity levels at 80-90% quite often here. McDry's claim to fame is
that a
desiccant cabinet will actually pull moisture out of devices over a
period of
time...something that dry nitrogen cabinets can't do. You can check
their
charts out at:
http://www.seikausa.com/mcdry/page5.html
I actually think that you could make beef jerky inside these
cabinets...hehehe.
They are a little pricey, but when you consider the costs of inerting a
cabinet with nitrogen, and the added aspects of a desiccant type system,
I
think they're worth it.
With these cabinets all you do is plug them into a standard receptical,
and
forget about it. The desiccant is self regenerated by the system...
-Steve Gregory-
<< Anyone out there ever considered drying moisture sensitive devices by
lowering the pressure in a storage vessel?
It is difficult to achieve 40°C and less than 5%RH when ambient RH is
50-60
percent. So, someone called and asked how long he would need to keep
the
parts at a pressure equivalent of 80,000 ft above sea level,
temperature at
room ambient to dry out parts.
No one here had considered it before. The physics made me feel like I
was at
altitude.
Guy Ramsey
Senior Lab Technician / Instructor
E-Mail: [log in to unmask] <mailto:[log in to unmask]>
Ph: (610) 362-1200 x107
Fax: (610) 362-1290 >>
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