M2540-92000-01 A M2540 Ultrasound System Field Service Manual Page 55
Theory of Operation: Transducer Safety Testing: Test Setup and Theory
Figure 4-5 Transducer Leakage Current Test Diagram for the Normal Condition
The leakage current normally flows from the chassis safely out through the ground wire. If there
is a fault in the transducer insulation, some of the current follows this path and is measured by
the safety analyzer. This Itransducer is still fairly low, unless the chassis is not properly grounded.
A
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7ASW030-2
Hot
Neutral
Ground
I
C
I
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measured
system
chassis
transducer
S
Z