Re: Tamper Contacts

["Crash Gordon" <webmaster@xxxxxxxxxxxxxxxxxxxxx>]

In 25 years I've never had a PIR lose it's cover...but we're talking
residential in the OP.


"petem" <petem001@xxxxxxxxx> wrote in message
news:0Mj4f.32674$Tn2.793268@xxxxxxxxxxxxxxxxxxxxxx
| in the case the tamper and nc contact are wired in series...
|
| it is being used as a way to know if a device have lost his cover (pretty
| useful in a large warehouse with lost of crazy folks driving lift) ;-)
| the zone would stay in alarm so preventing arming the system
|
| we all know how a pir can become really unstable or totally immune to
| movement if there is no covert on it..knowing that there is no cover on it
| is a plus for me....  ;-)
|
|
|
|
| "Crash Gordon" <webmaster@xxxxxxxxxxxxxxxxxxxxx> a écrit dans le message
de
| news: 4ui4f.33$q47.1244@xxxxxxxxxxxxxxxxxx
| > Unless you think someone in  your household is going to sabotage your
| > alarm
| > you don't need them.
| >
| > To be truly effective the pir would have to have been wired with 6
| > conductor
| > wire (or you could mickey-rig it with only 5 cond...duh) ; two for the
| > relay, two for power and two for the tamper. The tamper circuit would
then
| > be run to a 24 hour alarm zone. Some companies will wire the tamper
| > circuit
| > in series with the relay contacts - therefore being able to utilize only
4
| > conductor wiring...I see no purpose in this as it will only be effective
| > if
| > the pir zone is armed and then the cover opened...duh...(?).
| >
| >
| > "Will" <DELETE_westes@xxxxxxxxxxxxxxxxxx> wrote in message
| > news:FradnTcMwOdgNMzeRVn-gA@xxxxxxxxxxxxxxx
| > | Keeping in mind that I am an end user with just enough electronics
| > knowledge
| > | to get myself in trouble, can someone explain the basics of how a
tamper
| > | contact on a PIR works?   We had to take a DS9370 out of service, and
I
| > | noticed that the two tamper contacts had not been wired.    Depending
on
| > how
| > | these work, how easy they are to get working, and how important they
| > are,
| > I
| > | may direct our alarm guy to wire them in.
| > |
| > | --
| > | Will
| > |
| > |
| >
| >
|
|