Re: Unusual Challenge

[RTS <gafa@xxxxxxxxxxxxx>]

On 10/22/2021 11:07 PM, Jim Davis wrote:
> On Friday, October 22, 2021 at 9:36:51 PM UTC-4, ABLE1 wrote:
>> On 10/22/2021 8:50 PM, Jim Davis wrote:
>>> On Friday, October 22, 2021 at 4:13:26 PM UTC-4, ABLE1 wrote:
>>>> On 10/22/2021 1:18 PM, Jim Davis wrote:
>>>>> Re: The resistor. As I understand it, the closed circuit contact is wired from ground to the trigger terminal. Without a resistor, when the switch opens, the trigger terminal just goes from negative to "float". When you add the resistor, which is wired to the positive terminal when the switch opens, it "pulls" the trigger terminal to Positive. Which is a definite swing from negative to positive rather than to just to a float level. Changing component values on the relay PCB over the years could change the sensitivity level of he trigger input making the relay output of the board a "sometime" thing.
>>>> Yes, that does make sense. The next time I am there on site I
>>>> will install a 1K resistor just to be safe.
>>>>
>>>> Thanks!!
>>>>
>>>> Les
>>>
>>> Thanks to Les for forcing us to stimulate our bain snells umm - - - name spells
>>> I mean - - - Harumph! - - - - BRAIN CELLS !
>>> Speaking of which
>>> The other day I discovered that I needed another audio glass break detector in an area in a finished new construction pre-wire job. I really had to strain my brain to remember how to wire the detectors to bring them back to the panel on two separate zones on one four wire. I knew it could be done but I just went blank trying to remember how to wire it.
>>> I blame it on the fact that I've been doing this for so long and I keep putting new things in my brain and I keep losing brain cells and that causes some of the old stuff to fall out the other side. I don't think there's any more room left up there.!
>> That is very funny Jim. I was saying the same thing today when I was
>> forced to learn a new camera system I was installing. I was telling
>> my customer that I lost some old knowledge when the new was installed.
>> He thought I was telling a joking. He came back with the fact that we
>> only use 10% of our brain capacity. To which I said that my 10% is
>> overly full and any new stuff that comes in something has to go. And
>> once it does it can't be recalled because it is gone gone gone!!!
>>
>> BTW I hope you figured out the wiring scheme you were having a problem
>> with. I prefer to just run one 4c per device and not have to try the
>> other stuff!! :-)
>>
>> Have a good weekend.
>>
>> Les
> I know, I know,
> I always run a four wire or at least a pair to just about every opening ( especially on a prewire) but I thought that one audio glass break would cover the area when wired it. It's all closed up now, but when I tested the single GB it wouldn't pick up the tester from all windows so now I have to run two detectors back to the panel on a single four wire but I want them on separate zones.
> I'm not sure if you are asking me how to do it or offering to tell me how to do it. I finally figured it out but I had to draw it out on paper. if you want to know how, let me know.
> .
> Problem is, now that I've re-learned that, I wont know till next time I have another problem that I can't figure out what it is that I've "un-learned", - - - - because I think I'm only working with about 8% of my bran smells now.
> .
> Tell me Les Please tell me that sometimes you hear things rattling around up there. Don't you Les? Huh? Don't you?
>
I always check to see if the panel is positive or negative common..
I can then use that wire from the power feed to sensors as a common,
which then opens up an extra wire as a return feed to the panel..
RTS
(that use to drive my old boss nuts, every time he worked on one of my
wired panels... he said he could tell, any time he opened up a panel and
didn't find a return wire on a loop zone...)  LOL
RTS
--

*Rocky T. Squirrel, esq.*