D
IRECTION FR091521, REVISION 1 VIVID S60N/VIVID S70N BASIC SERVICE MANUAL
10-28 Section 10-3 - Why Perform Maintenance Procedures?
PRELIMINARY
10-6-9-3 Mains On Applied Part
NOTE: Mains Applied refers to the sink leakage test where mains (supply) voltage is applied to the part to
determine the amount of current that will pass (or sink) to ground if a patient contacted mains voltage.
Mains on applied part is one of the described leakage current tests applicable for probes (Ref:
IEC60601-1). This is to be performed with the probe disconnected from the Ultrasound system. Apply
mains voltage over the insulation barrier. (Between protective earth on the probe connector, and an
electrical anode in saline solution. The patient applied part of the probe is immersed into the saline
solution.) Measure current flowing in the circuit. = leakage current.
As a minimum, tests according to IEC60601-1 must be performed once a year. The requirements for
Body Floating (BF) have to be applied for TEE and Trans thorax probes bearing the symbol for safety
class BF.
The symbol for BF is indicated on the probe connector label below:
Where applicable, a typical test setup of non-TEE Probes can be as illustrated in: Figure 10-218 on
page 10-26.
A typical test setup for TEE probes could be as indicated in Figure 10-221.
Table 10-17 Typical Data Format for Recording Probe (Source) 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
off open
on closed
on open
Figure 10-220 GE Probe Connector Label - Example
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