Mallinckrodt NELLCOR NPB-195 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
8. Press and hold the Down Arrow button. Verify that the boxed Pulse lower
alarm limit display reduces to a minimum of "30."
9. Press and hold the Up Arrow button and verify that the boxed Pulse lower
alarm limit display cannot be adjusted above the Pulse high limit of "40."
10. Press the Power On/Standby button to turn the monitor off.
11. Press the Power On/Standby button to turn the NPB-195 back on.
12. Press and release the Limits softkey. Verify that the %SpO
limit display is boxed and indicates an alarm limit of "100."
13. Press the SEL softkey. Verify that the %SpO
boxed and indicates an alarm limit of "85."
14. Press the SEL softkey a second time. Verify that the Pulse upper alarm
limit display is boxed and indicates an alarm limit of "170."
15. Press the SEL softkey a third time. Verify that the Pulse lower alarm limit
display is boxed and indicates an alarm limit of "40."
16. Press the Power On/Standby button to turn the monitor off.
Hardware and software testing include the following tests.
• 3.3.3.1 Operation with a Pulse Oximeter Tester
• 3.3.3.2 General Operation
Operation with an SRC-2 pulse oximeter tester includes the following tests.
• 3.3.3.1.1 Alarms and Alarm Silence
• 3.3.3.1.2 Alarm Volume Control
• 3.3.3.1.3 Pulse Tone Volume Control
• 3.3.3.1.4 Dynamic Operating Range
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, press the following softkeys; Setup, View, and Pleth.
Verify that the %SpO
Section 3: Performance Verification
POSITION
38
LOW
OFF
RCAL 63/LOCAL
and Pulse initially indicate zeroes.
2
upper alarm
2
lower alarm limit display is
2
3-5