CALCIUM AGENT REPLENISHMENT WARNING DEVICE FOR IONIZED WATER PRODUCING APPARATUS

摘要

PURPOSE: To accurately know the replenishing period of a calcium agent and to make proper calcium ion water drinkable by the proper replenishment of the calcium agent by providing a warning means operated when the lowering quantity of a current value based on the lowering of the concn. of the calcium ion of the water between electrodes becomes a predetermined value or less. ;CONSTITUTION: When the supply of water is started by opening a tap water cock 3, tap water is purified in a water purifying tank l and the purified water is replenished with calcium by a calcium agent to enter an electrolytic cell 2 to be electrolyzed by electrodes 23, 24 and separated into alkali ion water and acidic water. At this time, calcium is precipitated on the surfaces of the electrodes by electrolysis and the resistance values of the electrodes are increased. When the concn. of the calcium ion in the introduced water lowers by the consumption of the calcium agent, an electrolysis control circuit 35 removes the reduction quantity due to the adhesion of calcium to the surfaces of the electrodes from the output of a current sensor 34 to detect the reduction quantity due to the lowering of the concn. of the calcium ion. When this detected value reaches a predetermined value, a lamp 38 is allowed to light to warn the replenishment of the calcium agent.;COPYRIGHT: (C)1994,JPO&Japio