Re: Low Battery FBII-2P

["RTS" <gafa_usa@xxxxxxxxxxx>]

"RTS"  wrote in message news:OMKdnY2dnpzrLPbOnZ2dnUVZ_o6dnZ2d@xxxxxxxxxxxx

Greetings,
Got a strange one here..

8 year old FBII -2P   1 LCD key, I street smart remote keyswitch,  4 combo
pir/micro motion detectors, 4 glass breakage detectors, 1 7 amphr battery,
2 sirens

Here's the thing about 10 days ago  it started displaying  "Low Battery"  ..

Ok,  the Battery was changed..   6 hours later it displayed "Low Battery"
Again..

Another Battery was installed  just in case the first one was faulty..
again  5-6 hours later  "Low Battery"..

voltages  were   DC output  11.50 to  12.00  (ideally  should be 12.50 to
13.50)
current off battery    45 ma.. with AC      150 ma  without  AC  ( about
right with the load  listed)
current off panel    150 ma   with or without AC..  ( again about right with
the load listed)

Removed all motions, sound, remote keyswitch and sirens..   (only thing on
panel was keypad)
15 minutes  again  it displayed  "Low Battery"

Being frustrated   we removed panel  and replaced it with a boxed brand new
FBII 2T.   (only thing on panel was keypad)
Low and behold  15 minutes later  it too  started beeping "Low Battery"...


No one seems to have an explanation  as to what's going on here..

I put it out here  wondering if anyone might have some other ideas  or
suggestions to try and remove  this   Gremlin .....

((Yes the one common  point between  both   panels  is the Keypad))

Problem  is I can't figure how the keypad could cause a low battery
indication to the panels sensing circuit..



Thanks
RTS



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Additional info  as  requested...

As for the AC  the supply  is 119vac
the 2P  transformer is a 16.5vac   supplying   17.1vac to 18.5vac  depending
on the current load from the panel..

When we tried the 2T  the transformer  was a 12VAC    supplying  12 vac
((but still caused the "Low Battery"  signal)))

RTS


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