[PCB_FORUM] Re: First Article Inspection

Hi Tom,

A multimeter doesn't typically have an impedance mode.  For checking for
shorts, you'd typically use a resistance mode.  Impedance and resistance are
different, though they are both specified in ohms.

Regards,

Austin

> -----Original Message-----
> From: icu-pcb-forum-bounce@xxxxxxxxxxxxx
> [mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx]On Behalf Of Tom Wood
> Sent: Thursday, January 26, 2006 6:08 PM
> To: icu-pcb-forum@xxxxxxxxxxxxx
> Subject: [PCB_FORUM] Re: First Article Inspection
>
>
> You put the Multimeter in impedance measuring mode and you touch one probe
> to ground and the other to power.  If the meter reads a high
> resistance the
> planes are not shorted, if it reads zero, the planes are shorted.
>
> Tom
> Arira Design, Inc.
> 408-844-8433 x112
>
>
> -----Original Message-----
> From: icu-pcb-forum-bounce@xxxxxxxxxxxxx
> [mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of
> austin@xxxxxxxxxxxx
> Sent: Wednesday, January 25, 2006 5:54 PM
> To: icu-pcb-forum@xxxxxxxxxxxxx
> Subject: [PCB_FORUM] Re: First Article Inspection
>
>
> Hi Tom,
>
> > c.  get a Multimeter and check impedance between the various
> plane layers.
>
> How do you do that with a miltimeter, and what does that tell you?
>
> Regards,
>
> Austin
>
>
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