I get the impression that many who are performing medical electrical safety tests like to speed a long time doing these tests! If you use typical 60601 tests on a PC based ultrasound with ECG and say 5 probes with a typical boot up/down of 10 to 15 mins then you could easily spend a few hours performing the tests.
Using 62353 Alternative methods, assuming you had ensured the power switch is in the on position, it would take about 5 mins to do the tests and then just the time it takes to boot up and perform a function test (as required by 62353) and your done.
Many manufactures are now updating their service material to 62353 and often choose the Alternative method for speed and safety. I know Siemens have recently updated their Ultrasound product electrical safety service instructions to 62353 and have adopted the Alternative method.
