Electrical Safety Check for TEE Transducers
TEE Leakage Current Test
Symbol
Definition
C
Stray capacitance from the ultrasound system power wiring to the system grounded
metal chassis (1 to 3 MΩ reactance)
Z
Impedance between the metal parts of the TEE transducer and a test electrode
placed in the bucket of saline solution (about 850 kΩ with an intact outer insulating
layer, 500 Ω with a hole in the layer)
A
Microammeter to measure third-wire current, either directly from the chassis or
through Z to the test electrode
e
Line power source, either 110 Vac or 220 Vac
I
Current caused by e and stray capacitance, and optionally Z
TEE Leakage Current Test
Transesophageal Transducers
EPIQ 7 User Manual 4535 617 25341
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Summary of Contents for epiq 7
Page 4: ...4 EPIQ 7 User Manual 4535 617 25341 ...
Page 26: ...Read This First Recycling Reuse and Disposal 26 EPIQ 7 User Manual 4535 617 25341 ...
Page 94: ...DVD RW Drive System Overview System Components 94 EPIQ 7 User Manual 4535 617 25341 ...
Page 154: ...Customizing the System Custom Procedures 154 EPIQ 7 User Manual 4535 617 25341 ...
Page 172: ...Performing an Exam Ending an Exam 172 EPIQ 7 User Manual 4535 617 25341 ...
Page 298: ...System Maintenance For Assistance 298 EPIQ 7 User Manual 4535 617 25341 ...