Nellcor Oximax NPB-40, Service Manual

Page: 32 / 114

Performance Verification
24
Pulse Oximetry Functional Tests
These tests utilize the pulse oximetry functional tester (Nellcor model
SRC
- MAX) to verify the performance of the NPB-40. See Figure 2.
These tests should be done in sequence.
Figure 2: SRC-MAX O
XI
M
AX
Oximetry Tester
Introduction
The SRC - MAX functional tester allows qualified technicians to functionally test
Nellcor O
XI
M
AX
technology - based pulse oximeters and OEM O
XI
M
AX
technology - based monitors. The technician must perform the test setup procedure
before performing tests 1 through 4. The following is a brief description of each
test:
• Test Setup — This procedure establishes the baseline for all the other
tests. The Test Setup procedure must be performed before performing any
or all of the SRC
- MAX tests.
• Test 1: BPM — This procedure simulates an O
XI
M
AX
sensor attached to a
patient indicating 60 bpm and 200 bpm. The test setup procedure sets up
Test 1 for 60 bpm.
• Test 2: SpO
2
— This procedure simulates an O
XI
M
AX
sensor attached to a
patient, indicating 75 percent blood oxygen saturation and 90 percent
1 — NPB-40 Cable Connector 6 — % Modulation Select Button
2 — RED LED Drive Indicator 7 — % SpO
2
Select Button
3 — Not Used For NPB-40 8 — Light Level Selection Button
4 — Not Used For NPB-40 9 — Pulse Rate Selection Button
5 — Battery Low Indicator 10 — INFRARED LED Drive Indicator