electronics

Question 1

ground resistance value?

Answer 1

<.5 ohms makes sure stray current goes to the earth

Question 2

Chassis Leakage value?

Answer 2

<100 micA how much current the device leaks

Question 3

How is ground resistance and chassis leakage tested?

Answer 3

Biomed plugs my cord into their box. They disconnect the ground to test chassis leakage current.
Alligator clip to exposed metal on chassis, so can test resistance on ground of power cord and chassis.

Question 4

2. Appropriate procedure if a shock is felt from the machine chassis or other potentially dangerous safety are suspected.

Answer 4

Don’t touch the chassis.
Discount patient leads from amplifier
Unplug machine from outlet
Inform surgeon
Call the biotronic office