GE Vivid 4 BT03 RFI - Page 582

GE MEDICAL SYSTEMS
D
IRECTION 2392751-100, REVISION 3VIVID™ 4 SERVICE MANUAL
Chapter 10 - Periodic Maintenance 10-21
10-7-4-1 Ground Continuity Testing - Generic Procedure
Follow these steps to test the Ground wire resistance:
1.) Turn the Vivid™ 4 unit OFF.
2.) Connect one of the Ohmmeter probes to the tested AC wall outlet (Ground pin).
3.) Using the other Ohmmeter probe, touch the exposed metal part of the Vivid™ 4 unit.
4) Set the meter Function switch to the Resistance position.
5) Measure and record the Ground wire resistance.
This should be less than 0.2 Ohms.