Test #3: Modulation Level - Nellcor OxiMax N-550 Service Manual

Performance Verification

Test #3: Modulation Level

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6. The N-550 will display:
• 75 %SpO2 (pass criteria is 73 to 77 %SpO
• 60 bpm
• alarm
• pulse amplitude indicator - low level modulation
1. Press the SRC-MAX % Modulation selection button. The SRC-MAX %
Modulation LED will light.
2. The N-550 pulse amplitude indicator will fill (10 bars) with each pulse
beat.
3. The N-550 will display:
• 75 %SpO2 (test pass criteria is 73 to 77 %SpO
• 60 bpm (test pass criteria is 57 to 63 bpm)
• alarm
• pulse amplitude indicator - high level modulation
4. Perform Test #1: BPM on page 22. The pulse amplitude indicator should
indicate high level modulation.
5. Perform Test #2: SpO2 on page 23. The pulse amplitude indicator should
indicate high level modulation.
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