Joe,

One thought:
A14 allows commercial and industrial products to comply with Class A limits
whereas computers and TVs are required to comply with Class D limits.  Your
product might comply with Class A limits.  It sounds like a case is being
made that the product is part of a system in which case the "system" defines
the class and therefore the odds of compliance.  Is your "system" a computer
system or does it just use a computer as the data processing part of the
overall system function (bio-measurement system?)?

If you can use the above argument, then it boils down to obtaining an
opinion from a Competent Body allowing the use of A14 until A14 is announced
in the OJEC.

Another thought: 
If each product is a stand-alone product (computer, printer, etc.), then
each product should already have its own harmonics compliance.  This would
then suggest testing your product stand-alone.  Again your product should be
tested to Class A limits with the same caveats mentioned above.

These are just thoughts.  Perhaps they can be tools to use in opening a
dialog with your test lab.

Good luck,

Don Umbdenstock
Sensormatic


> ----------
> From:
> [email protected][SMTP:[email protected]]
> Reply To:     [email protected]
> Sent:         Monday, November 27, 2000 1:18 PM
> To:   [email protected]
> Subject:      Testing as a system for harmonics?
> 
> 
> One of our products is sold as a system with several other non-connected
> products as well as a computer system and printer. We brought this product
> to a well known EMC Testing facility to perform Harmonics testing.  They
> required that we plugged our product, as well as all of the peripheral
> devices, into a power strip and they then tested the complete system
> together for Harmonics.  Obviously, it failed.
> 
> Has anyone else had an EMC Lab make this request of testing the complete
> system?  Is anyone aware of any document that requires system testing for
> Harmonics?
> 
> All responses are appreciated.
> 
> Regards
> 
> Joe Martin
> EMC/Product Safety Engineer
> [email protected]
> 
> 
> -------------------------------------------
> This message is from the IEEE EMC Society Product Safety
> Technical Committee emc-pstc discussion list.
> 
> To cancel your subscription, send mail to:
>      [email protected]
> with the single line:
>      unsubscribe emc-pstc
> 
> For help, send mail to the list administrators:
>      Jim Bacher:              [email protected]
>      Michael Garretson:        [email protected]
> 
> For policy questions, send mail to:
>      Richard Nute:           [email protected]
> 
> 

-------------------------------------------
This message is from the IEEE EMC Society Product Safety
Technical Committee emc-pstc discussion list.

To cancel your subscription, send mail to:
     [email protected]
with the single line:
     unsubscribe emc-pstc

For help, send mail to the list administrators:
     Jim Bacher:              [email protected]
     Michael Garretson:        [email protected]

For policy questions, send mail to:
     Richard Nute:           [email protected]

Reply via email to