Patient (Sink) Leakage Current Tests - GE CARESCAPE B850 Service Manual

CARESCAPE Monitor B850

8.2.9 Patient (sink) leakage current tests

This procedure measures the leakage current from an applied part connector of the device to
ground. Perform the test in Normal Condition (NC) with normal and reverse polarity.
NOTE: Refer to the instructions delivered with the safety analyzer to perform this test.
NOTE: *The measuring device (MD) represents the network and voltage measuring instrument
and its frequency characters according to IEC 60601-1.
NOTE: **According to IEC-60601, the impedance to protect the circuitry and the person
performing the test, but low enough to accept currents higher than the allowable values of the
leakage current to be measured.
WARNING SHOCK HAZARD - The following step causes high voltage at the test body.
Do not touch the test body.
NOTE: Perform this test for all the connected parameter modules and patient connectors
specified in
1. Configure the safety analyzer as follows:



2. Power on the device under test.
3. Read and record the current leakage indicated on the safety tester.
4. Configure the safety analyzer as follows:



5. Read and record the current leakage indicated on the safety tester.
6. Power off the device under test.
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Table 1.
Polarity: NORMAL
Neutral: CLOSED
GND: CLOSED
Polarity: REVERSED
Neutral: CLOSED
GND: CLOSED