Hi Kevin,

Well, I found out that quite a few of the Diss-O-pads are used here, and
it's created a bit of a stir that we might not be able to use them. Do
you know if adding an extra carbon bed will protect the rest of the beds
longer and extend the life?

Steve Gregory

-----Original Message-----
From: Glidden, Kevin [mailto:[log in to unmask]] 
Sent: Monday, April 29, 2013 2:14 PM
To: TechNet E-Mail Forum; Steve Gregory
Subject: RE: [TN] Bivar Diss-O-Pads and closed-loop DI systems

We've been through the same exact problem.  Yes, they will shorten your
DI bed life.  The material is a lactose binder (sugar).  We actually
found on some wave soldered boards they got too hot and discolored the
PCB surface.

We simply stopped using them and instead integrated permanent mechanical
spacers into designs that use TH parts and also required spacers.  We
get them thru Bivar.


Kevin Glidden


-----Original Message-----
From: Steve Gregory [mailto:[log in to unmask]] 
Sent: Monday, April 29, 2013 2:56 PM
To: [log in to unmask]
Subject: [TN] Bivar Diss-O-Pads and closed-loop DI systems

Hi All,

 

We're getting ready to change our cleaner out with a closed-loop system,
and I was wondering if the use of Bivar Diss-O-Pads will harm the DI
beds? I have a call into Bivar, but I thought I would ask TechNet while
I was waiting.

 

I know I'm going to have to change the water soluble mask that is
currently used to one that doesn't harm the DI beds, but I don't know
about the Diss-O-Pads...

 

Steve Gregory


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