PROBLEM TO BE SOLVED: To reliably detect liquid leakage, and detect an abnormality related to an installation state.SOLUTION: A liquid detecting device 10 includes a liquid detection sensor 1 having: an insulation sheet 14 that exhibits conductivity by the interposition of liquid a plurality of electrode members 15 which are provided on one surface of the insulation sheet 14 in a contacted state, and are electrically separated from one another and a resistance member 18 connected so as to connect the electrode members 15 together. The liquid detecting device 10 detects a resistance value between the electrode members 15 by a measuring device 2, determines a liquid leakage state in which the insulation sheet 14 exhibits conductivity, a connection release state in which the connection between the electrode members 15 and the measuring device 2 is released, and a measurement preparation completion state based on the resistance value between the electrode members 15, and outputs the determination information corresponding to each determined state.COPYRIGHT: (C)2014,JPO&INPIT【課題】漏液を確実に検知すると共に設置状態に関する異常を検知する。【解決手段】液体検知装置10は、液体の介在により導電性を発揮する絶縁シート14と、絶縁シート14の一方面に接触状態で設けられていると共に、互いに電気的に分離された複数の電極部材15と、電極部材15同士を結び付けるように接続された抵抗部材18とを有した液体検知センサー1を有している。液体検知装置10は、計測装置2によって電極部材15間の抵抗値を検出し、電極部材15間の抵抗値に基づいて、絶縁シート14が導電性を発揮する漏液状態と、電極部材15と計測装置2との接続が解除された接続解除状態と、測定準備完了状態とを判別し、判別した各状態に対応した判別情報を出力する。【選択図】図1
