
Full Digital Ultrasonic Diagnostic Instruments
User’s Manual V1.00
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Test the patient leakage current according to IEC 60601-1: Limit: for a.c.: 100μA (B), for d.c.:
10μA (B).
Test the patient leakage current under single fault condition with mains voltage on the applied
part according to IEC 60601-1: Limit: for a.c.: 500μA (B), for d.c.: 50μA (B).
The leakage current should never exceed the limit. The data should be recorded in an equipment
log. If the device is not functioning properly or fails any of the above tests, the device has to be
repaired.
2. Please clean the plug of power cord at least once a year. Too much dust on plug may cause the
fire.
13.6 System Block Diagram