Nellcor NPB-190 Service Manual page 17

3.3.3 Hardware and Software Tests
3.3.3.1 Operation with a Pulse Oximeter Tester
3.3.3.1.1 Alarms and Alarm Silence
10. Press the Power On/Standby button to turn the unit off. Turn the unit back
on.
11. Press and release the Upper Alarm Limit button. Verify that the %SpO
display indicates an alarm limit of "100".
12. Press and release the Lower Alarm Limit button. Verify that the %SpO
display indicates an alarm limit of "85".
13. Press the Upper Alarm Limit button two times rapidly. Verify that the pulse
rate display indicates an alarm limit of "170".
14. Press the Lower Alarm Limit button two times rapidly. Verify that the pulse
rate display indicates an alarm limit of "40".
15. Press the Power On/Standby button to turn the monitor off.
Hardware and software testing include the following tests:
•
Operation with a Pulse Oximeter Tester
•
General Operation
Operation with an SRC-2 pulse oximeter tester includes the following tests:
•
Alarms and Alarm Silence
•
Alarm Volume Control
•
Pulse Tone Volume Control
•
Dynamic Operating Range
•
Nurse Call
1. Connect the SRC-2 pulse oximeter tester to the sensor input cable and
connect the cable to the monitor. Set the SRC-2 as follows:
SWITCH
RATE
LIGHT
MODULATION
RCAL/MODE
2. Press the Power On/Standby button to turn the monitor on. After the normal
power-up sequence, verify that the pulse rate initially indicates zeroes.
Note: The pulse bar may occasionally indicate a step change as the
monitor is in the pulse search mode.
3. Set the modulation switch on the SRC-2 to HIGH.
4. Verify the following monitor reactions:
Section 3: Performance Verification
POSITION
38
HIGH
OFF
RCAL 63/LOCAL
2
2
3-5