GE M
EDICAL
S
YSTEMS
D
IRECTION
2392751-100, R
EVISION
3
V
IVID
™ 4 S
ERVICE
M
ANUAL
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.