Care and Maintenance
4-20 Ultrasound System – Common Service Information
Direction 5444964-100 English
Rev. 5
LOGIQ/Vivid/Voluson Ultrasound System Leakage Current Limits
Leakage current limits for LOGIQ, Vivid and VOLUSON
Ultrasound Systems are shown below for 100-130 Volt and
220-240 Volt mains.
NOTE: Open Grounding is also known as “Lift Ground”.
Table 4-6: Leakage current limits for Ultrasound system operation on 100-130 Volt
mains (US/Canada/Japan)
Leakage Current Test
System
Power
Grounding/
PE Conductor
Limit in
mA
Limit in
µA
Earth Leakage On and Off N/A
0.3
(1)
300
(1)
Chassis/Enclosure Leakage On and Off Closed
Open
0.1
0.3
(1)
100
300
(1)
Type BF Applied Parts On (transmit) Closed
Open
0.1
0.5
100
500
Type CF Applied Parts On (transmit) Closed
Open
0.01
0.05
10
50
Type BF Applied Parts (sink
leakage, mains voltage on applied
part)
On and Off Closed 5 5000
Type CF Applied Parts (sink
leakage)
On and Off Closed 0.05 50
(1) UL 60601-1 standard
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