Table 3. Earth Leakage Current Values; Table 4. Enclosure Leakage Current - Nellcor OxiMax N 5500 Service Manual

Patient monitor
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Performance Verification
Normal polarity; Neutral open
Reverse polarity; Neutral open
Note: Earth leakage current is measured under various conditions of the AC mains and
protective earth conductor. For each condition, the measured leakage current
must not exceed that indicated in Table 3.
3.4.2.2 Enclosure Leakage Current
This test is in compliance with IEC60601-1 enclosure leakage current. This test is for
ungrounded enclosure current, measured between enclosure parts and earth. The applied
voltage for IEC60601-1 the applied voltage is 264 Volts AC at 50 to 60 Hz.
1. Connect the monitor AC plug to the electrical safety analyzer as recommended by the
analyzer operating instructions.
2. Place a 200 cm
contact with any metal parts of the enclosure that may be grounded.
3. Measure the leakage current between the foil and earth.
Note: The analyzer leakage current indication must note exceed the values listed in
Table 4.
AC Line Cord
Closed
Closed
Closed
Open
Open
Open
3.4.2.3 Patient Leakage Current
This test measures patient leakage current in accordance with IEC60601-1, clause 19,
for Class I, Type CF equipment. Patient leakage current in this test is measured from any
individual patient connection to earth (power ground).
1. Configure the electrical safety analyzer as recommended by the analyzer operating
instructions.
2. Connect the monitor's AC mains power cord to the analyzer as recommended by the
analyzer operating instructions.
24

Table 3. Earth Leakage Current Values

Test Condition
Normal polarity
Reverse polarity
2
foil in contact with the instrument case making sure the foil is not in

Table 4. Enclosure Leakage Current

Neutral Line
Wire
Closed
Closed
Open
Closed
Open
Closed
N5500 Service Manual
Allowable Leakage Current (microamps)
500
1000
500
1000
Power Line
Allowable Leakage
Ground Wire
Current (microamps)
Closed
Open
Closed
Closed
Closed
Open
100
500
500
500
500
500

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