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Author Topic: Alarm Query ??  (Read 4190 times)

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SteveMJ

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Re: Alarm Query ??
« Reply #30 on: 26 January 2009, 12:56:08 »
I'm now back from my week away and have no problems with my alarm.

So, if anyone want stheir batteries replaced I would be agreeable to do this.

Contact me.

Regards

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Entwood

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Re: Alarm Query ??
« Reply #31 on: 26 January 2009, 21:29:18 »
I could be very, very interested as I have a powersounder in the garage, removed for lots of beeps on switch on .. then a load of spurious alarms .... so I'm guessing the batteries have died ... I supoose you'd only find out if they've leaked on disassemble ???

Keep meaning to go to the stealers and order a new one ... but if you think you can fix it .......    :)
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Merlindriver

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Re: Alarm Query ??
« Reply #32 on: 26 January 2009, 23:27:45 »
Well despite drying off the plug my power sounder is still playing up.  Have taken it off and taped up the plug and no problems - but no alarm of course.  The movement detector just sets off the indicators now with no noise but at least the indicators aren't going off on their own!  Having taken the power sounder apart the battery voltages are as near as dammit 3.6V, as advertised for 3-cell MiMh, so I suspect it's may not be the batteries.
« Last Edit: 26 January 2009, 23:28:23 by merlindriver »
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SteveMJ

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Re: Alarm Query ??
« Reply #33 on: 27 January 2009, 08:28:20 »
That was the same symptoms as mine.  I also tried charging and monitoring the old batteries; they were about 3.3V rising to 3.6V after charging and stayed like that for a day or more (I didn't keep detailed records).

Asking a different question: How long would you expect the batteries to last?  5 years, 10 years, 15 years?  Well mine were at least 8 years old so I thought that it would be reasonable to expect they had reached their designed lifetime.

However the battery replacement has resolved my problem, so it seems a reasonable conclusion that they were at fault.

As offered before "I could replace the batteries on the board if anyone wants this done"
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Merlindriver

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Re: Alarm Query ??
« Reply #34 on: 27 January 2009, 19:46:41 »
Quote
That was the same symptoms as mine.  I also tried charging and monitoring the old batteries; they were about 3.3V rising to 3.6V after charging and stayed like that for a day or more (I didn't keep detailed records).

Asking a different question: How long would you expect the batteries to last?  5 years, 10 years, 15 years?  Well mine were at least 8 years old so I thought that it would be reasonable to expect they had reached their designed lifetime.

However the battery replacement has resolved my problem, so it seems a reasonable conclusion that they were at fault.

As offered before "I could replace the batteries on the board if anyone wants this done"

If NiMh are like NiCd batteries they last as long as they last.  I have had battery packs on my model aircraft fail within a year - others are still going strong after 10 years.  

I'd be interested in the battery replacement to see if the problem goes away - I looked at the board but the soldering looks a bit intricate for me to do.  Maybe you could PM me with the cost.

Ta, Dick
« Last Edit: 27 January 2009, 19:47:16 by merlindriver »
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Entwood

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Re: Alarm Query ??
« Reply #35 on: 01 February 2009, 00:34:22 »
Quote
That was the same symptoms as mine.  I also tried charging and monitoring the old batteries; they were about 3.3V rising to 3.6V after charging and stayed like that for a day or more (I didn't keep detailed records).

Asking a different question: How long would you expect the batteries to last?  5 years, 10 years, 15 years?  Well mine were at least 8 years old so I thought that it would be reasonable to expect they had reached their designed lifetime.

However the battery replacement has resolved my problem, so it seems a reasonable conclusion that they were at fault.

As offered before "I could replace the batteries on the board if anyone wants this done"


No answer to my PM ??? did you get it ???
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SteveMJ

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Re: Alarm Query ??
« Reply #36 on: 01 February 2009, 00:46:17 »
I'm sorry guys; PC crashed and I spent my Saturday re-building sotware installation.  Just got email up and running (I assume I can send).  Off to bed as its late.

Will respond tomorrow.

S
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Entwood

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Re: Alarm Query ??
« Reply #37 on: 01 February 2009, 00:52:00 »
No probs .. these things happen ...  unfortunately ... speak soon  :)
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SteveMJ

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Re: Alarm Query ??
« Reply #38 on: 01 February 2009, 23:05:09 »
Personal messages sent.

A very hectic week at work last week.  Capped off by PC crashing on Friday late afternoon.  So a s/w re-build on Saturday -what a PITA.  I had loads of stuff I'd rather be doing (and needed to do) than re-building the software.  :(

Sorry for not replying earlier.
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Steve
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