Patent ID: 8332167

Claim:
A digital multi range liquid level detector control system to determine and maintain the level of liquid in a swimming pool having a liquid surface with or without the need of a physical contact with liquid, the system comprising: a fluid control valve including a solenoid valve; and a capacitive digital sensor detector comprised of a capacitive electrode with a capacitive converter IC chip that obtains digital data coupled with a logic printed circuit board for data processing and transmitting, a sensor housing enclosing the capacitive electrode, the capacitive converter IC chip and the logic printed circuit board, the capacitive electrode comprised of at least two capacitive electrodes that are spaced apart in parallel and oriented planar to the liquid surface, said fluid control valve being in communication with the logic printed circuit board of the capacitive digital sensor detector for receiving and processing acquired data from the capacitive electrode of the capacitive digital sensor detector related to the position of the liquid surface relative to the capacitive digital sensor detector, the capacitive digital sensor detector comparing the acquired data to a stored preset low value and a stored preset high value.