Safety Tests - Nellcor NPB-190 Service Manual

3.3.3.2.2 Monitor Operation with a Live Subject
3.4

SAFETY TESTS

1. Connect the monitor to an AC power source.
2. Connect an EC-4 or EC-8 sensor input cable to the monitor.
3. Connect a D-25 sensor to the sensor input cable.
4. Press the Power On/Standby button to turn the monitor on.
5. Leave the sensor open with the LEDs and photodetector visible.
6. After the monitor completes its normal power-up sequence, verify that the
sensor LED is brightly lit.
7. Slowly move the sensor LED in proximity to the photodetector element of
the sensor. Verify, as the LED approaches the photodetector, that the LED
intensity decreases.
8. Open the sensor and notice that the LED intensity increases.
9. Repeat step 7 and the intensity will again decrease. This variation is an
indication that the microprocessor is in proper control of LED intensity.
10. Turn the NPB-190 off.
Pulse oximetry involves connecting the monitor to a live subject for a qualitative
test.
1. Ensure that the monitor is connected to an AC power source.
2. Connect an EC-4 or EC-8 sensor input cable to the monitor.
3. Connect a Nellcor Durasensor
sensor input cable.
4. Clip the DS-100A to an adult subject as recommended in the sensor
directions for use.
5. Press the Power On/Standby button to turn the monitor on and verify that
the monitor is operating.
6. The monitor should stabilize on the subject's physiological signal in about
15 to 30 seconds. Verify that the saturation and heart rates are reasonable
for the subject.
NPB-190 safety tests meet the standards of, and are performed in accordance
with, IEC 601-1 (EN 60601-1, Second Edition, 1988; Amendment 1, 1991-11,
Amendment 2, 1995-03) and UL 2601-1 (August 18, 1994), for instruments
classified as Class 1 and TYPE BF and AAMI Standard ES1 (ANSI/AAMI ES1
1993).
Section 3: Performance Verification
oxygen transducer, model DS-100A, to the
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