DC power drop alarm Answered
I need a very simple way to see if power is ever lost to load. I am trying to run a long term test of at least 60 days. I have a UPS that is powering a load and I need to be able to determine if the 12 - 15 V dc that the UPS is providing is ever lost. The UPS has a battery that will supply power if the AC input is lost. The solution can be very simple and I really don't want the load to be reconnected if the current going to the load is ever lost. I need to know if the load is ever not powered, even for a brief instant. I was hoping there might be some type of switch that would open if the current stopped flowing through it. Sorry for the simplicity but I know very little about electronics. Thanks for any help or advice.