NELLCOR PURITAN BENNETT Symphony N-3000 Service Manual page 24

Section 3: Performance Verification
3.4.2.2 Patient Source Current
3.4.2.3 Patient Sink Current
3-14
This test is in compliance with AAMI Standard ES1, Paragraph 3.3.2. Patient
Source Current is measured between any individual patient connection and
power (earth) ground.
1. Configure the electrical safety analyzer as follows:
Function:
Range:
2. Connect the monitor AC plug to the electrical safety analyzer as
recommended by the analyzer operating instructions for patient source
current.
3. Connect the electrical safety analyzer leakage input lead to the monitor's
sensor input connector.
The analyzer leakage indication must not exceed 10 microamps for all of
the following AC power configurations with the monitor on.
AC LINE
POLARITY
Normal
Reverse
Reverse
Normal
This test is in compliance with AAMI Standard ES1, Paragraph 4.4. Patient
sink current is measured in a patient connection if a source of 240 volts,
50 Hz (or 120 volts, 60 Hz) with respect to power (earth) ground, is connected
to that patient connection.
1. Configure the electrical safety analyzer as follows:
Function:
Range:
2. Connect the monitor AC plug to the electrical safety analyzer as
recommended by the operating instructions for patient sink current.
3. Connect the electrical safety analyzer leakage input lead to the monitor's
sensor input.
The analyzer leakage indication must not exceed 50 microamps for
240 volts (10 microamps for 120 volts) for the following AC power
configurations with the monitor on.
AC LINE
POLARITY
Normal
Normal
Leakage
µA
POWER LINE
GROUND CABLE
Normal
Normal
Open
Open
Leakage
µA
POWER LINE
GROUND CABLE
Normal
Open