Table 3-1: Dynamic Operating Range - Nellcor NPB-190 Service Manual

Section 3: Performance Verification
3.3.3.1.5 Nurse Call
3.3.3.1.6 Operation on Battery Power
3.3.3.2 General Operation
3.3.3.2.1 LED Excitation Test
3-8

Table 3-1: Dynamic Operating Range

SRC-2 Settings
RATE LIGHT
38 HIGH2
112 HIGH1
201 LOW
201 LOW
Note: The Nurse Call tests must be performed with the instrument operating
on AC power.
1. Connect the negative lead of a voltmeter to pin 10 and positive to pin 11 of
the serial port on the back of the instrument (Figure A-1 in appendix).
Ensure that the audible alarm is not silenced or turned off.
2. Set the SRC-2 to create an alarm condition. Verify an output voltage at pins
10 and 11 between +5 to +12 VDC.
3. Press the Alarm Silence button. With no active audible alarm, the output
voltage at pins 10 and 11 must be between -5 to -12 VDC.
4. Turn the instrument off. Disconnect the voltmeter and the SRC-2.
1. Turn the instrument on using AC Power.
2. Disconnect the instrument from AC and verify that the AC Power Indicator
turns off.
3. Verify that the instrument continues monitoring normally and that the Low
Battery Indicator is not lit.
Note: If the Low Batter Indicator is illuminated, perform the procedure
outlined in step 3.3.1.
4. Connect the instrument to AC and verify that the AC Power Indicator turns
on and that the instrument is monitoring normally.
The following tests are an overall performance check of the system:
•
LED Excitation Test
•
Monitor Operation with a Live Subject
This procedure uses normal system components to test circuit operation. A
Nellcor Oxisensor II
â
intensity control. The red LED is used to verify intensity modulation caused by
the LED intensity control circuit.
MODULATION SpO2
LOW 79 - 83*
HIGH 79 - 83*
LOW 79 - 83*
HIGH 79 - 83*
oxygen transducer, model D-25, is used to examine LED
NPB-190 Indications
Pulse Rate
37 - 39*
110 - 114
198 - 204*
198 - 204*