Nellcor OxiMax N-600x Service Manual page 36

Performance Verification
30
To test the circuit operation:
1. Connect the monitor to an AC power source.
2. Connect a DOC-10 pulse oximetry cable to the monitor SpO
port.
3. Connect a MAX-A O
4. Press the ON/STANDBY button to turn the monitor on.
5. Leave the O M sensor open with the LEDs and photo detector visible.
XI AX
6. After the monitor completes its normal power-up sequence, verify the O
sensor LED is brightly lit.
7. Slowly move the O
XI
element of the O M
XI
8. Verify the LED intensity decreases as the LED approaches the optical O
sensor.
9. Open the O M sensor and notice the LED intensity increases.
XI AX
10. Repeat step 8 and the intensity continues to decrease. This variation is an
indication the microprocessor is in proper control of LED intensity.
11. Press the ON/STANDBY button to turn off the monitor.
M sensor to the O
XI AX XI
M sensor LED in proximity to the photo detector
AX
sensor (close the O M
AX XI
O M
2 XI AX
M sensor-input cable.
AX
sensor slowly).
AX
sensor
M
XI AX
M
XI AX