Chapter 5 Malfunction Analysis and Troubleshooting
5.1 Daily Maintenance
5.1.1 Maintenance after use
Long press
to turn off the device.
Unplug lead cables, please hold the plug part and do not pull the wire with force.
Clean the device and accessories.
Place the device in a cool and dry environment.
Do not soak the device into detergent for cleaning. Before cleaning the shell, please do turn the
device off. It is recommended to use neutral cleanser to wipe the recorder for its cleaning, then
air dry or use a clean and dry cloth to wipe it.
5.1.2 Inspection and Maintenance of Lead cables and Electrodes
Use a multimeter to detect the connectivity of the lead cable by checking whether each wire of
the lead cable is in good contact. The resistance of each wire from the electrode plug to the
corresponding pin in the lead cable plug should be less than 2Ω. The integrity of the lead cable
must be checked regularly. Any lead wire damage will cause a false waveform of the
corresponding lead or all leads on the ECG. The lead cable can be cleaned with water or neutral
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