Chapter 14
Troubleshooting
14.1 Turn off Automatically
① Please check whether the power of battery is used up. Over discharge control circuit of the
battery acts.
② Please check whether the alternating current voltage is too high. Overvoltage control circuit
acts.
③ Please check whether the alternating current disturb is too high, whether the fix knob of
lead plug is too tight. Shut automatically is for protecting circuit when overload.
14.2 AC Interference
① Is the ECG device ground cable proper?
② Are the electrodes and leads connected properly?
③ Is the electrode and skin covered with enough Gel?
④ Is the metal bed grounding proper?
⑤ Does the patient touch the wall or metal sickbed?
⑥ Does other people touch the patient?
⑦ Whether there is powerful electric device working beside ECG device? For example: X
radial device or B-Ultrasound devices.
14.3 EMG Interference
① Whether the patient room is comfortable.
② Is the patient nervous?
③ Is the sickbed too narrow?
User Manual
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