Magnets Near PCs

[Jim Richards]

Corrrect me if I'm wrong, but don't the laws of magnetism say that 
eventually the shield around the unit will become magnetised?  I 
beleive that is why you should shield your computer, not the 
deactivator unit.


> 
> As indicated by another web4liber, shielding is the solution.  Rather 
> than shielding each of the components affected, we sheld the 
> "deactivator" unit itself.  We had 3-sided (sides and top) unit 
> fabricated from sheet metal.  This works fine.
> 
> 
> Bob Jones                                    mailto:bjones at unf.edu
> Head, Public Services Division and Systems Coordinator
> University of North Florida Library          http://www.unf.edu/library/    
> P.O. Box 17605                               (904) 620-2552 (SC 861-2552) 
> Jacksonville, FL  32245-7605                 FAX: (904) 620-2719
>                                              ARIEL: 139.62.208.88
> 
> 
> 
> On Thu, 23 Jul 1998, Elizabeth Fielding wrote:
> 
> > Hello List Members
> > 
> > A distress call from Queensland, Australia.
> > 
> > We are switching from dumb terminals to PCs at our circ desk and now
> > find that the deactivator magnets under the desk (which are part of our
> > security system) are going to be too close to checkout stations. This
> > looks like being a logistic problem for us and am wondering if anyone
> > else has found a workable solution.
> > 
> > In particular I'd be grateful if someone could tell me:
> > 
> > 1. What is the minimum safe distance between a magnet and the hard
> > drive? (I have heard 3 feet.)
> > 
> > 2. What is a safe distance from the monitor?
> > 
> > 3. Have you any advice, answers or experiences?
> > 
> > The security product in question is a RAECO Alarm 2100. Our circ desk is
> > an optimum height for staff so an ergonomic arm is not an appropriate
> > solution.
> > 
> > Thanks in advance. 
> > 
> > Libby Fielding
> > Cooloola Shire Library Service
> > 
> 
> 
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 Jim Richards
 Systems Administrator
 Naperville Public Libraries          Voice: (630)961-4100 x241
 200 W. Jefferson Ave.                    Fax: (630)961-4117
 Naperville, IL  60540-5374
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