What does it mean when the SmartMed display e100

It indicates the error code of the electrocardiogram (ECG) module. When the intelligent medical care instrument detects an abnormality or malfunction of the ECG module, the screen will display e100 or ECG can not be calculated and other prompt messages to remind the user to deal with or replace the device in time. Intelligent medical instrument is a modern medical device that can monitor and record the patient's vital signs, disease development and other information.