Wayne,

We use Nitrogen through an ionizing controller called a Pulseflow 
Controller. 
To check it I have a static meter, intentionally charge a surface, usually 
a piece of Mylar or Kapton, and use the ionized nitrogen gun for a few 
seconds.  I read the charge before and after.


Chuck Brummer
3M Manufacturing Engineer
8357 Canoga Ave.
Canoga Park, CA 91304-2605
(818) 734-4930




From:
"Thayer, Wayne - IIW" <[log in to unmask]>
To:
[log in to unmask]
Date:
03/23/2010 02:57 PM
Subject:
[TN] air or nitrogen for drying
Sent by:
TechNet <[log in to unmask]>



We have a number of "airbrush" low pressure nozzles around here for 
spraying solvents on reworked boards and for drying them off.  I know that 
nozzles can create static, but I have had no problems to date and have had 
no problem with dust sticking to the boards when I dry them off this way.

I haven't been able to find anything on trying to quantify static from 
nozzles used in this way.  Does anyone have data?  Moving to ionized 
blow-off for drying the boards would be painful, as that means yet more 
equipment in our small cleaning stations.

Wayne Thayer

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