RTfino/RT3200 Advantage–II/RT–x200 SERVICE MANUAL
GE MEDICAL SYSTEMS
P9030GX
INSTALLATION AND REPLACEMENT
3–13
REV 21
3–7–4 Probe Leakage Current Test
Definition
This test measures the current that would flow to ground from any of the probes through a patient who is being scanned
and becomes grounded by touching some other grounded surface.
Generic Procedure
Measurements should be made with the ground open and closed, with power line polarity normal and reversed, and
with the unit Off and On. For each combination, the probe must be active to find the worst case condition.
POWER
OUTLET
H (BLACK) POLARITY REVERSING SWITCH
MOMENTARY
SWITCH
N (WHITE)
G (GREEN)
LEAKAGE
TEST
METER
CONSOLE
PROBE
SETUP FOR PROBE LEAKAGE CURRENT
ILLUSTRATION 3–6
Note
Each probe will have some amount of leakage current, dependent on its design. Small variations in
probe leakage currents are normal from probe to probe. Other variations will result from differences in
line voltage and test lead placement.