DC current alarm. What would be the most cost effective way to trip an audible alarm if current goes over 2 amps? Answered
I have a test fixture that I use. I am testing a circuit board and I need to be able to trip an audible alarm if the current going from my 15 V DC power supply goes over 2 amps, or more precisely 1.5 amps. As of now I have to watch the amp meter to see if during a particular portion of the test the amps go over 1.5. This only occurs for 2-3 seconds of a 60 second test. If I happen to not be watching I have to start over. I would like to be able to reset the alarm after it is tripped to test the next board. Obviously I would like to do this a inexpensively as possible. Thanks for any help.