Re: Vsita 15P programming question

["Robert L Bass" <robertlbass@xxxxxxxxxxx>]

"petem" wrote:
>
>  ... in this industry normal sate is when the switch is
> at the ready state..so when the door contact is close
> to its magnet...
>
> much easily said then all the bs you post....

You are quite wrong, friend.

Following is a link to a Sentrol product information bulletin on the 1275
series magnetic contacts.  Sentrol is the most popular manufacturer of
magnetic contacts in the USA.  Perhaps you have heard of them.  The 1275 is
intended for NC loops.  It opens the circuit when the magnet moves away from
the switch.  In the table on the second page you will find the electrical
configuration of this popular switch.  It is labeled as "N.O." which refers
to the state of the switch without the influence of the magnet -- in other
words, when the door is open.  This is precisely the opposite of your
erroneous statement.

http://207.173.33.114/products/pdf/1275PIB.pdf

Following is a link to the document describing the 1125, a 3/8" diameter,
stubby contact which is also extremely popular.  You'll notice that the
designation is, once again, "N.O." which describes the sensor state with no
magnet around.

http://207.173.33.114/products/pdf/1125PIB.pdf

GRI is another popular manufacturer of magnetic contacts.  Following is a
link to a product document describing their 2020 series switches.  The
2020-12 is intended for use in a closed loop.  It opens when the magnet
moves away.  GRI describes the electrical configuration of the sensor as
"N.O."

http://www.grisk.com/recessed/pdf/2020-12%20series.pdf

GRI's popular 20RS-12 is another 3/8" stubby press fit, similar to Sentrol's
sensor.  Here's a link to the page on it, which again describes the sensor,
which is intended for a closed loop, as having an "N.O." configuration.

http://www.grisk.com/recessed/pdf/2020-12%20series.pdf

If you need further information on the subject feel free to post again.  I'd
be happy to assist you.  BTW, I'm a bit biased in favor of these since I
sell them (and over a thousand more) in my online store.  See the URL in my
tag line below.

--

Regards,
Robert L Bass

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