Hi everyone
Following a recente PBO article (PBO 493 & 497)about a simple single PNP transistor bilge flood alarm, I´ve decided to share with you guys an upgrade to that system that I´ve came up with.
It´s an electronic water sensor coupled with a relay that can be used to command a water pump.
If the water reaches the level at which the probe points are placed an alarm will sound and the system will engage a relay that commands the bilge pump, turning it on utill the water level decreases bellow the probe level.
NOTES:
-The probe points must be kept at about 10mm from eachother;
-The relay contacts must be properly rated to be able to cope with the pump consumption;
Doubts and suggestions are welcome.
Regards
Pedro