stuart2011 Posted February 16, 2011 Posted February 16, 2011 Help please! I moved into my new house and acquired an Intellisense Securit 800L alarm. I had planned to reset the alarm code within the first couple of weeks but within 5 days the alarm went off at 3.40am. I managed to contact the old owner and disarm the alarm. I then reset the code to my own. The alarm went off again approx an hour later and I disarmed it. A few days past and I never thought much more of it. At exactly 1 month the alarm went off at 3.40am again. I've been trawling the web to find out why / how this happened. The only answer that it seems to be is it needs a replacement battery (FYI - the house / alarm is only 3 years old). Can anyone tell me if buying a replacement Yuasa NP2-12, 12v 2Ah battery online and is the right diagnosis and secondly how difficult it is to replace? Not being an alarm engineer, I'm a bit apprehensive of opening the alarm box in case it triggers the alarm. Stuart
arfur mo Posted February 16, 2011 Posted February 16, 2011 Hi Stuart, Without attending to test we can't give a definitive, but I'd say a high chance the battery has expired. It went twice about the same tim, yhis might be to the power station switching the national gride. If you replace it your not throwing away much money if another fault happens. An decent engineer would test the battery and the charging voltage from the panel, tampers, zone ressistances and so on. makers offr a 1 year warranty, but suggest 3- 5 years, I say 2 - 4 years. Having removed one last week which had done 12 years. Things like duty cycle, charging voltage, environment temperature all affect a batteries total useful life. Try TLC (electrical outlet) no need to be trade or have an account. I find, they tend to be fair on prices, especially ordinary batteries - handy to know for Xmas toys . Please be aware, mains voltage is present inside the controls, take appropirate caution or get some one competent if you are not, for you safety. Just hate it, having given free advice, when people come back in here an moan on about they died, no appreciation shown . Arfur If you think education is difficult, try being stupid!!!!
9651 Posted February 16, 2011 Posted February 16, 2011 What was shown when it went off, a zone number or tamper? As mentioned above, sounds like something switching, central heating etc? (bit early though lol)
stuart2011 Posted February 16, 2011 Author Posted February 16, 2011 Thanks guys I meant to say that the tamper light was lit. Apart from taking the appropriate caution when inside the control panel will taking the battery out trigger the alarm? I did suspect the national grid resetting power and also severe drops in temperature and heavy rain getting into the external box. I'll try replacing the battery and failing that call a local engineer. Stuart
PeterJames Posted February 16, 2011 Posted February 16, 2011 Tamper is a 24hr circuit and the control panel, each zone, the bell, keypad, internal sounder, and cables are all items that could be the fault. Could be water in the bellbox, or one of the door contacts, a damaged cable, a detector lid not seated properly. Unless you are familiar with a mulitimeter and resistances you will struggle to find an intermittent tamper , but the good news is it will get worse and that will make it much easier to find
9651 Posted February 16, 2011 Posted February 16, 2011 battery wont cure a tamper fault. Imo for the cost of a call out to a local (decent) alarm company it could save lots of interrupted nights sleep. Could be a spike, or loose connection somewhere. If its a mains spike you may need a suppressor of some sort.
stuart2011 Posted February 16, 2011 Author Posted February 16, 2011 Thanks for your feedback. Really helpful. Think I'll call a local engineer tomorrow. Stuart
arfur mo Posted February 16, 2011 Posted February 16, 2011 battery wont cure a tamper fault. Imo for the cost of a call out to a local (decent) alarm company it could save lots of interrupted nights sleep. Could be a spike, or loose connection somewhere. If its a mains spike you may need a suppressor of some sort. With honest respect yes it can, this panel has a common tamper loop (iir)c. On such designs if the battery voltage drops when a short power out happens, it can cause the panel to indicate a tamper. The panel treating the low voltage drop on the tamper return terminal as a 'break'. May not be the case here and a bit deep for o/p, so like i said without an actual visit we are all using educated guessing, perhaps nocturnal rodents are another possibility, or a cable under boards shorting as the heating switcheson and warming the popes about the same time. Wr know hundreds if causes but Battery being a fairly common if not the most common fault on non maintained systems to do this. It had 2 alarms about the same time, but well apart. so might br the grid switching, low voltage causing tamper on EWD as above. Takes a sharp guy to spot it as the real reason, but anyone changing the battery will in effect cure it by default. Has to be the easiest 1st try, and no real loss in cost as new bsttery is never a waste IMHO, especially if being done by the less skilled. Battery is said to be 2 years old, but system is likely older. I'd guess if spikes were the problem it would have happened sooner, unless o/p has an older fridge or freezer. Thats still educated guessing though, as I have seen new fridges spike, and old one's not spiking. Personally, not going against others but on kit I've used I have never ever installed spike suppression, always found another sometimes very obscure and misleading cause. I do tend to ask to have the panel on its own dedicated circuit for mains where possible, avoids other works needing to power being removed from alarm. so spiking from kettles etc. Is reduced, perhaps why additional suppression has not ben needed. Hope he reports back, be interesting what the engineer actually reports. Arfur If you think education is difficult, try being stupid!!!!
hpotter Posted February 17, 2011 Posted February 17, 2011 yep, securit, 9448 et al, can get tamper fault due to battery.
arfur mo Posted February 17, 2011 Posted February 17, 2011 I'm blushing Mr HP . Arfur If you think education is difficult, try being stupid!!!!
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