I need to design a FAIL SAFE circuit that will detect a water leak(spill).
I plan on using this sensing cable https://www.electro-tech-online.com/custompdfs/2008/08/ttsensingcircuit.pdf
The problem is how do you make the circuit fail-safe when the cable is normally OPEN(dry).
Thanks
I plan on using this sensing cable https://www.electro-tech-online.com/custompdfs/2008/08/ttsensingcircuit.pdf
The problem is how do you make the circuit fail-safe when the cable is normally OPEN(dry).
Thanks