Not possible to followup on the malfunction report.However, this event could occur for the following reasons: mecta ect devices test the impedance of the patient electrode contact with the skin in order to avoid causing a skin burn if the impedance is too high.High patient impedance may be caused by any of the following: faulty electrode wires, use of non-conductive electrode gel, use of disposable electrodes (especially if past their use by data), tarnished electrodes, poor connection due to hair, some medications, poor hydration, condition of some elderly patients, poor skin preparation.
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