More detail about the case.
The piece of audiometer passed the auton ClassI (Company said it was ClassII machine after) auto EST the first time, though the charger is visually burned during the test. And the audiometer did not pass the protective earth resistance test after that. However, the charger still supplied power to audiometer and everything working all right after, with the burning smell from the charger.
Thanks, Ling and Ian, for your suggestion.
I would like to rise another question here. Does any one test the patient lead that enclosed totally by rubber or plastic? Such as cuff, SpO2 finger sensor, and earphone. The engineer suggestted that NO patient lead need to be tested as the earphone from audiometer has no patient-connected metal wire back to machine.
How is every one test the patient leakage on Vital sign monitor? NO patient lead tested? I am always connecting the SpO2 finger sensor and even cuff to patient lead test. Although, it does seem unnecessary at all in theory.
Please do give your suggestion and what is your test on this? Many thanks.
