Allen: I've used a similar system to the one you desribed.It is a 
	Plexiglass chamber 9 cu ft with an internal humidty sensor wired to	
	an external controller and desiccated dehumidifier w/pump for $2-3K.	
	The controller/dehumidifier system is also available without the box	
	for about $1K less.Contact Cole-Parmer 1-800-323-4340.		
									
					Regards				
					Michael Barmuta			
					Staff Engineer			
					Fluke Corp.			
					Everett Wa.			
					(206)356-6076


On Mon, 11 Nov 1996 11:02:31 -0800 Allen Hertz wrote:

> From: Allen Hertz <[log in to unmask]>
> Date: Mon, 11 Nov 1996 11:02:31 -0800
> Subject: Dry Box Source?
> To: [log in to unmask]
> 
>      Fellow technetters:
>      
>      We have been trying to identify a source for a "dry box". The "Dry 
>      Box" is a plexiglass box (or set of boxes), usually a door in the 
>      front, optional shelving, and a flow controller operating off readings 
>      of relative humidity. The box is used for storing moisture sensative 
>      plastic packaged devices (BGA, QFP, etc.) to avoid moisture 
>      absorption. The controller is plumbed to a low humidity air source 
>      (dry air, Nitrogen, etc.). When the relative humidity readings rise 
>      above a preset limit, the controller flows some source gas.
>      
>      In searching, the closest we have come is "Blue M" which distributes a 
>      product called a "Dry box" but is actually a dryer, more on the lines 
>      of an oven. Blue M suggested lab equipment manufacturers.
>      
>      Any potential sources would be greatly appriciated.
>      
>      Thanks in advance,
>      Allen Hertz
>      Racal-Datacom, Sunrise, FL
>      (954) 846-5829
>      allen_ [log in to unmask]
> 
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