Patient Leakage Current Tests - Overview - GE CARESCAPE B850 Service Manual

9. Read and record the current leakage indicated on the safety tester.
10. Configure the safety analyzer as follows (SFC):



11. Read and record the current leakage indicated on the safety tester.
12. Configure the safety analyzer as follows (NC):



13. Read and record the current leakage indicated on the safety tester.
14. Power off the device under test.
Acceptance criteria in Normal Condition (NC):
All readings shall be less than or equal to 100 A
•
Acceptance criteria in Single Fault Condition (SFC) – earth open or one of the supply conductors
open at a time:
All readings shall be less than or equal to 300 A for installations that require compliance
•
to UL 60601-1 requirements.
All readings shall be less than or equal to 500 A for installations that require compliance
•
to EN 60601-1 / IEC 60601-1 requirements.
8.2.7 Patient leakage current tests – overview
The following table specifies the parameter modules and the related patient connectors to be
tested in the
current
Use the safety test body kit, P/N M1155870 (or equivalent), to perform patient leakage current
tests. This safety test body kit contains various patient connectors where all pins are shorted
out together. For information on which test body to use for each patient connector, refer to the
service instructions included in the safety test body kit.
NOTE: If not otherwise stated in the table below, each test body is connected directly to the
specified connector in the patient module.
Table 1
Module
E-PSMP
E-PT
E-PP
Polarity: REVERSED
Neutral: OPEN
Earth (GND): CLOSED
Polarity: REVERSED
Neutral: CLOSED
Earth (GND): CLOSED
8.2.8. Patient (source) leakage current tests
tests.
Patient connectors to be tested with each module
Patient connector
ECG &
SpO2
P3/P7
P5
Installation checkout
and in the 8.2.9. Patient (sink) leakage
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