PROBLEM TO BE SOLVED: To provide an electrocardiograph and its control method that support measurement in preparing stabilized cardiograms.SOLUTION: Prior to the start of recording an electrocardiogram, judgment is done on whether noises are mixed in individual induction waveforms and whether any electrode is attached in a wrong way (S103). If either the mixed noise or the wrong electrode attachment is judged, the electrocardiograph operator is notified of this (S109).COPYRIGHT: (C)2010,JPO&INPIT【課題】 安定した心電図の計測を支援する心電計及びその制御方法を提供する。【解決手段】 心電図の記録開始前に、個々の誘導波形について、ノイズ混入の有無及び電極誤装着についての判定を行う(S103)。そして、ノイズ混入か電極誤装着のいずれかが判定された場合、操作者に通知する(S109)。【選択図】 図2