My manual for both the Ionograph and the Omegameter states that the
ionizing columns are good for at least a year of "regular" use, but does
not state what that is. In applications for other clients (not at GD) I
have noticed that the columns lose the ability to bring the resistance
of the DI water/alcohol solution up over the 60 Megohms after about two
years of use. When I cannot regenerate to that level of resistance, and
I have fresh solution, then I replace the columns.  
These other companies practice a once-per-shift minimum cleanliness
check, with a frequency increase to every hour while military production
is being built, so it is difficult to put a number on how long between
having to swap out the columns.
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Bloomquist, Ken
Sent: Monday, May 22, 2006 3:36 PM
To: [log in to unmask]
Subject: Re: [TN] Ionic Tester filter media ?

Hi Kevin,

Don't know how much help this is but Ramon pretty much nailed it. The
material is a mixed bed resin that is a non-regeneration type. It is
special so that it does not strip the alcohol. It is more expensive than
a normal resin bed because it can't be regenerated. It must be thrown
away and a new batch put in.

That's about all I know on the subject!

KennyB

-----Original Message-----
From: Kevin Glidden [mailto:[log in to unmask]]
Sent: Monday, May 22, 2006 10:30 AM
To: [log in to unmask]
Subject: [TN] Ionic Tester filter media ?

Can anyone tell me what is in the cartridges of the ionic testers that
removes contaminants?  Why does it not also remove the alcohol and just
make plain DI?


Kevin Glidden
Manufacturing Engineer
Luminescent Systems Inc.
4 Lucent Drive
Lebanon, NH 03766-1439
Tel # (603) 643-7766 ext. 3152
Fax # (603) 643-5947

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