Electrical safety tests
Ultrasound System – Common Service Information 4-39
Direction 5444964-100 English Rev. 5
Generic procedure on probe leakage current  (continued)
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:  Values in italics font are given as examples only. 
Table 4-16:  Typical data format for recording probe (source) leakage current
Unit under test___________________________    Date of test:___________
Test Conditions Probe as measured in saline bath
System Power  Grounding /PE 4C  i12L  TS  E8C 
off closed
off open
on closed
on open
Table 4-17:  Typical data format for recording probe (source) leakage current
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 100
off open 500
on closed 100
on open 500
off closed 
(reversed 
polarity)
100
off open (reversed 
polarity)
500
on closed 
(reversed 
polarity)
100
on open (reversed 
polarity)
500