Author Topic: Testing Detectors On Old Systems  (Read 16641 times)

Offline Benzerari

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Testing Detectors On Old Systems
« Reply #15 on: March 19, 2008, 09:10:59 AM »
Quote from: Wiz
Quote from: Buzzard905
Quote from: Graeme
I would say no as with testing one at a time with OMT you can see if the panel has activated then reset by watching the LED.
By testing two then resetting you cannot tell if both would have activated the panel individually. Most cases when the led comes on it would have but i would be happier doing them one at a time to be sure.
If they were accessible you could pop the heads out to reset them,although this can have it's downside - if you don't put one back into the base correctly you end up chasing a fault.
But this doesn't reset the panel! - Which is the element that takes time to walk back to the panel and reset.
I agree with that, removing the source that generates fire signal would not reset the system, this later can be reset only from the main panel, Reset usually means (Processor Restart), once you walk to the panel with the detector head in your hand and push reset button, the system will clear fire condition and show head removed fault instead... which is two kind of tests in once fire and fault conditions...

I know this is basic and obvious to most of the members, but please leave chance to others who may find it beneficial.

Offline Allen Higginson

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« Reply #16 on: March 19, 2008, 09:31:13 AM »
Quote from: Wiz
Quote from: Buzzard905
Quote from: Graeme
I would say no as with testing one at a time with OMT you can see if the panel has activated then reset by watching the LED.
By testing two then resetting you cannot tell if both would have activated the panel individually. Most cases when the led comes on it would have but i would be happier doing them one at a time to be sure.
If they were accessible you could pop the heads out to reset them,although this can have it's downside - if you don't put one back into the base correctly you end up chasing a fault.
But this doesn't reset the panel! - Which is the element that takes time to walk back to the panel and reset.
No but on a conventional system it will reset the head (unless you have an odd head where the base has the indicating control) and thus proving that the detecor has activated and,as you have pointed out,that's all you need to be doing in reference to BS.

Offline Benzerari

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« Reply #17 on: March 19, 2008, 10:45:13 AM »
Quote from: Buzzard905
Quote from: Wiz
Quote from: Buzzard905
If they were accessible you could pop the heads out to reset them,although this can have it's downside - if you don't put one back into the base correctly you end up chasing a fault.
But this doesn't reset the panel! - Which is the element that takes time to walk back to the panel and reset.
No but on a conventional system it will reset the head (unless you have an odd head where the base has the indicating control) and thus proving that the detecor has activated and,as you have pointed out,that's all you need to be doing in reference to BS.
Yes removing the triggred head will reset it, in either cases conventional or analogue addressable head, but the system would not, the system still need to be reset from the main panel...

Head removed means just removing the 24Vdc from it, isn't? and that is what reset it

Offline Wiz

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« Reply #18 on: March 19, 2008, 12:07:33 PM »
Quote from: Benzerari
Quote from: Wiz
Quote from: Buzzard905
If they were accessible you could pop the heads out to reset them,although this can have it's downside - if you don't put one back into the base correctly you end up chasing a fault.
But this doesn't reset the panel! - Which is the element that takes time to walk back to the panel and reset.
I agree with that, removing the source that generates fire signal would not reset the system, this later can be reset only from the main panel, Reset usually means (Processor Restart), once you walk to the panel with the detector head in your hand and push reset button, the system will clear fire condition and show head removed fault instead... which is two kind of tests in once fire and fault conditions...

I know this is basic and obvious to most of the members, but please leave chance to others who may find it beneficial.
Guys, Guys, Guys, I am trying to answer the enquirer's original question and the meaning behind it. There are some things being added that are not precisely relevant to the original question. We don't want to confuse our 'customers'
The guy is clearly asking if he has to reset the fire panel after operating each detector. He doesn't want to have to do this because it takes more time walking backwards and forwards to the fire panel. Unplugging the detector doesn't reset the panel. He doesn't need to reset each detector after operating it. He will reset all operated detectors when he presses reset on the panel. If he wanted to know how to reset/unlatch an individual detector he would have asked. If we are going to add things that we think are interesting to someone but are not precisely relevant to the original question, then mine would be, 'ice cream melts in the sun'.
Sorry! I'm losing it a bit here. I shouldn't really allow my frustration to turn into sarcasm!
----Prof. Kurnal, call Matron and ask her for my medication immediately,  before I do something I regret!!!!

Offline Allen Higginson

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« Reply #19 on: March 19, 2008, 01:17:56 PM »
Moral of the story is to check the FIRST post in a thread and ignore all others to avoid the googlies!!

Chris Houston

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Testing Detectors On Old Systems
« Reply #20 on: March 19, 2008, 01:27:05 PM »
Quote from: Buzzard905
Moral of the story is to check the FIRST post in a thread and ignore all others to avoid the googlies!!
....and don't leave ice cream in the sun!

Offline Benzerari

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« Reply #21 on: March 19, 2008, 05:03:44 PM »
Quote from: Wiz
Quote from: Benzerari
Quote from: Wiz
But this doesn't reset the panel! - Which is the element that takes time to walk back to the panel and reset.
I agree with that, removing the source that generates fire signal would not reset the system, this later can be reset only from the main panel, Reset usually means (Processor Restart), once you walk to the panel with the detector head in your hand and push reset button, the system will clear fire condition and show head removed fault instead... which is two kind of tests in once fire and fault conditions...

I know this is basic and obvious to most of the members, but please leave chance to others who may find it beneficial.
Guys, Guys, Guys, I am trying to answer the enquirer's original question and the meaning behind it. There are some things being added that are not precisely relevant to the original question. We don't want to confuse our 'customers'
The guy is clearly asking if he has to reset the fire panel after operating each detector. He doesn't want to have to do this because it takes more time walking backwards and forwards to the fire panel. Unplugging the detector doesn't reset the panel. He doesn't need to reset each detector after operating it. He will reset all operated detectors when he presses reset on the panel. If he wanted to know how to reset/unlatch an individual detector he would have asked. If we are going to add things that we think are interesting to someone but are not precisely relevant to the original question, then mine would be, 'ice cream melts in the sun'.
Sorry! I'm losing it a bit here. I shouldn't really allow my frustration to turn into sarcasm!
----Prof. Kurnal, call Matron and ask her for my medication immediately,  before I do something I regret!!!!
Wiz, just take it easy, all colaborators are trying to answer the question, each per his understanding, you agree we can not be photocopies of each other, otherwise the conversation would not make sense...

4 days OFF soon :)

Offline Wiz

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Testing Detectors On Old Systems
« Reply #22 on: March 19, 2008, 05:20:41 PM »
Quote from: Buzzard905
Moral of the story is to check the FIRST post in a thread and ignore all others to avoid the googlies!!
Very well put, old chap - best bit of advice ever posted on this forum!

Offline Wiz

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Testing Detectors On Old Systems
« Reply #23 on: March 19, 2008, 05:32:08 PM »
Quote from: Benzerari
Quote from: Wiz
Quote from: Benzerari
I agree with that, removing the source that generates fire signal would not reset the system, this later can be reset only from the main panel, Reset usually means (Processor Restart), once you walk to the panel with the detector head in your hand and push reset button, the system will clear fire condition and show head removed fault instead... which is two kind of tests in once fire and fault conditions...

I know this is basic and obvious to most of the members, but please leave chance to others who may find it beneficial.
Guys, Guys, Guys, I am trying to answer the enquirer's original question and the meaning behind it. There are some things being added that are not precisely relevant to the original question. We don't want to confuse our 'customers'
The guy is clearly asking if he has to reset the fire panel after operating each detector. He doesn't want to have to do this because it takes more time walking backwards and forwards to the fire panel. Unplugging the detector doesn't reset the panel. He doesn't need to reset each detector after operating it. He will reset all operated detectors when he presses reset on the panel. If he wanted to know how to reset/unlatch an individual detector he would have asked. If we are going to add things that we think are interesting to someone but are not precisely relevant to the original question, then mine would be, 'ice cream melts in the sun'.
Sorry! I'm losing it a bit here. I shouldn't really allow my frustration to turn into sarcasm!
----Prof. Kurnal, call Matron and ask her for my medication immediately,  before I do something I regret!!!!
Wiz, just take it easy, all colaborators are trying to answer the question, each per his understanding, you agree we can not be photocopies of each other, otherwise the conversation would not make sense...

4 days OFF soon :)
Dr Wiz he say:

1) Opinions are variable - Facts are constant. We should all learn the difference.

2) Answering the question actually asked is enlightening - Going off at tangents leads to  
    confusion and angst.

3) In my opinon none of us are collabarators (or photocopies(?) but all just residents of a
   home for the slightly bewildered

4) Prof. Kurnal is my hero

5) Enjoy your 4 days off :)

Chris Houston

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Testing Detectors On Old Systems
« Reply #24 on: March 19, 2008, 05:54:28 PM »
Everyone chill out and eat their ice cream or there will be no videos over the Easter weekend.  Go back to your rooms!

Offline Benzerari

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« Reply #25 on: March 19, 2008, 08:21:40 PM »
I hope the climat change would not affect us see you guys after holiday  :)

Graeme

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Testing Detectors On Old Systems
« Reply #26 on: March 20, 2008, 12:00:30 PM »
what are holidays again?

Offline Wiz

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« Reply #27 on: March 20, 2008, 01:28:48 PM »
Quote from: Graeme
what are holidays again?
For many business owners* these are normal days but with no income whilst still costing the same level of expenditure (staff wages, NIC, business rates, rent etc. etc.)

* From Wiz's dictionary: Business owner = Unwilling tax collector forced to work for the Government on an unpaid basis