Monitoring Voltage

[Hendrik W. M. van Eeden]

My system runs a battery test during a 24 hour period.  I have been  
getting false alarms. I have been wondering if during this test the  
battery drops to low and I get the false alarm. Or the battery is not  
being fully recharged.  The charger and battery are all connected to  
and are part of the security system.


Henk



On Jan 11, 2008, at 11:51 AM, Steve Hume wrote:

> I don't test mine but I bought a security system control board for  
> nothing on ebay. I use it as a battery charge system for my  
> batteries since it has all the charge and trickle charge already  
> designed into its firmware for lead-acid gel batteries. It also acts  
> as the 12V supply for the security stuff and the battery is just  
> backup.
> It did cost me $10 at Home Depot to buy a metal box to put it in.
>
> If your battery is always on the charge system then monitoring it  
> will not be sufficient for testing. Fancy UPS systems actually have  
> to run off the battery to test it, or take it off the charge system  
> and test it.
>
> Steve Hume
> On 11-Jan-08, at 11:39 AM, Hendrik W. M. van Eeden wrote:
>
>> Does anyone, on this list, have XTension monitor a voltage between  
>> 11 and 14 volts?  I need to find out if my security's backup  
>> battery falls below 11 volts at anytime during a 24 hour period.   
>> So it would have to measure the voltage fairly frequently.
>