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Be sure that there is no intense electromagnetic interference source around the equipment,
such as radio transmitter or mobile phone etc. Attention: large medical electrical equipment such
as electrosurgical equipment, radiological equipment and magnetic resonance imaging equipment
etc. are likely to bring electromagnetic interference.
Check the main unit and its accessories carefully before operating the ECG for patients.
Replacement should be taken if there is any evident defectiveness or aging symptom which may
impair the safety or performance.
The frequency and voltage of the AC power should conform to it requires. This ECG uses
mains supply and built-in rechargeable lithium battery. For mains supply, rated voltage: 220V,
frequency: 50Hz; power: 50VA. For battery, rated voltage: 14.8V, capacity: 4400mAh, power:
50VA.When using, please follow the requests to supply power.
Safety test should be applied on the instrument regularly (at least once every two years),
tests should include
a) Check if the instrument and accessories has mechanical and functional damage;
b) Check if the safety ID is broken;
c) Check the fuse whether it fulfills the requirement the rated current and short circuit
characteristic
d) Check the function of the instrument according to its operation manual
e) Perform the following safety test according to IEC60601-1 standard:
Protection ground impedance, Limit Value 0.1
Ω
.
Earth leakage current, Limit Value: NC 500uA, SFC 1000uA.
Patient current leakage, Limit Value: 10uA. (Type CF equipment)
When AC power is applied, limit value patient current leakage is 50 uA (Type CF equipment) in
single trouble status. The test results have to be recorded and performed by the authorized staff.
If the equipment failed in any of the tests, it has to be repaired.
The equipment and reusable accessories can be sent back to the manufacturer for
recycling or proper disposal after their useful lives.
If any accident happens during use, please turn off the ECG immediately.
