Hi,
I've had a Napco Magnum 1000 for about 16yrs already. Overall, the system works perfectly well - everything it was setup/designed to do is precisely the way it works. Except for one thing.
The daily phone verification has a problem and has always had this problem since day one. Ever since the system has been installed, the clock seems to drift a second or so every day. If the system is programmed to dial out at
4am, every few months (never really checked it carefully, but might be a question of 6-8 months or so), it drifts back to 9pm or 10pm where it becomes a nuissance to the people living in the house. At which point, the dial out timer has to be reset back to 4am, and that works for another series of months before the same issue repeats itself.I was wondering if anyone else has ever encountered that kind of issue in the past, and if so, what can be done to rectifiy it, instead of having to manually reset it every time it drifts too much.
Can a faulty/flaky transformer be responsible for something like this? I know in theory it shouldn't, if the crystal on the board responsible for the digital clock is accurate, but I'm out of ideas. The whole alarm system is on a UPS, so I am certain that the input current is glitch free.
Any thoughts?
Thanks!
Eric