A LEVEL SENSING DEVICE

摘要

A device to determine level of a solution in a tank is disclosed. The solution has the property that the specific resistance of the device varies over a period of time. The device comprises a conducting element having at least one gap. The gap is bridged with resistor R1 of defined value. A look up table containing a set of ranges of resistance values, each range of resistance value being indicative of specific level of the solution in the tank and a control means adapted to determine the level of the solution depending upon the resistance across the contact points of the conducting element and the range of resistance values stored in the look up table.