Nellcor OxiMax N-550, Service Manual

Page: 33 / 138

Performance Verification
N-550 23
6. The N-550 will display:
• 75 %SpO2
• 60 bpm (test pass criteria is 57 to 63 bpm)
• alarm
• pulse amplitude indicator - low level modulation
Test #2: SpO
2
1. Press the SRC-MAX %SpO
2
select button. The SRC-MAX %SpO
2
90
LED will light.
2. The N-550 will display three dashes until the SRC-MAX stabilizes at 90
%SpO
2
. The test pass criteria is 88 to 92 %SpO
2
.
3. The N-550 will display:
• 90 %SpO2 (pass criteria is 88 to 92 %SpO
2
)
• 60 bpm
• no alarm
• pulse amplitude indicator - low level modulation
4. Press the SRC-MAX %SpO
2
select button. The SRC-MAX %SpO
2
75
LED will light.
5. The N-550 will display three dashes until the SRC-MAX stabilizes at 75
%SpO
2
. The test pass criteria is 73 to 77 %SpO
2
.