Philips M2540 Figure 4-6 Transducer Leakage Current Test Diagram for 1st Single Fault Condition,

M2540-92000-01 A M2540 Ultrasound System Field Service Manual Page 56
Theory of Operation: Transducer Safety Testing: Test Setup and Theory
Figure 4-6 Transducer Leakage Current Test Diagram for 1st Single Fault Condition
When an open ground condition is imposed, all Ichassis is forced through the transducer. This
Itransducer is still fairly low unless its sheath is compromised.
Figure 4-7 Transducer Leakage Current Test Diagram for 2nd Single Fault Condition
A
I
7ASW030-3
Hot
Neutral
Ground
I
C
I
I
measured
system
chassis
transducer
S
Z
A
I
7ASW030-4
Hot
Neutral
Ground
I
C
I
I
measured
system
chassis
transducer
S
Z