10 Troubleshooting
10.1 Automatic switch off
( 1) Check battery capacity. The instrument has the function of protecting the circuit when the
battery over discharged.
(2) Check the AC power voltage. The instrument has the function of protecting the circuit when
its overvoltage.
(3) Check AC interference, check the knob on the plug of the patient cable. The instrument has
the function of protecting the circuit when over loading.
10.2 AC interference
( 1) Make sure that the unit is properly grounded.
(2) Verify the electrode attachment and patient cable wire performance.
(3) Daub enough ECG medical gel on the electrodes and patient.
(4) Make sure that the metal-bed is properly grounded.
(5) Keep the patient from contact with the wall or other metal parts of the sickbed.
(6) Keep the patient from physical contact with other patients.
(7) Check for electrical devices in the surrounding area, X-ray machine, ultrasound equipment.
10.3 EMG interference
( l) A comfortable patient room.
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