| 摘要 |
PROBLEM TO BE SOLVED: To stabilize a produced pH value by a control method in which the flow rate range of a flow rate section in the control of voltage applied to an electrolytic cell is widened from a low flow rate area toward a high flow rate area even when a flow rate is varied. SOLUTION: In a water conditioner, when water is passed through an alkali ion water conditioner 3, the flow rate section of the flow rate of water being passed through the conditioner 3 is judged by a flow rate section determination means 22, and voltage to be applied is corrected corresponding to the judgement. When the flow rate is varied, the produced pH value of produced alkali ion water or acidic ions is varied largely; however, control is made by a control method in which the flow rate range of a flow rate section is widened from a low flow rate area toward a high flow rate area to stabilize a produced pH value.
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