Electrical safety tests
Ultrasound System – Common Service Information 4-41
Direction 5444964-100 English Rev. 5
Isolated Probe (Sink) Leakage-Isolation Test  (continued)
Record all data and keep the record of the result with other hard 
copies of maintenance data.
NOTE:  Not all test procedures are applicable to all areas of the world. 
Reversed Polarity testing content satisfies regions following IEC 
62353:2007 and IEC 60601-1:2005. 
NOTE:  Probe names in italics font are given as examples only.
Table 4-18:  Typical data format for recording Isolated Probe (sink) leakage
Unit under test___________________________    Date of test:___________
Test Conditions Probe as measured in saline bath
System Power  Grounding /PE 4C  i12L  TS  E8C 
off closed
on closed
Table 4-19:  Typical data format for recording Isolated Probe (sink) leakage
Unit under test____________________________________      Date of test:_____________
Test Conditions Probe as measured in saline bath
System 
Power
Grounding/
PE
Limit 
µA 4C i12L TS E8C
off closed 5000
on closed 5000
off closed 
(reversed 
polarity)
5000
on closed 
(reversed 
polarity)
5000