General Operation - Nellcor OXIMAX N-595 Service Manual

General Operation

LED Excitation Test
N-595
Note: If the LOW BATTERY indicator is illuminated, perform the Battery
Charge procedure, page 10.
3. Connect the monitor to AC power and verify that the AC POWER
indicator turns on and that the instrument is monitoring normally.
The following tests are an overall performance check of the system:
• LED Excitation Test, page 21.
• Operation with a Live Subject, page 22.
This procedure uses normal system components to test circuit operation. A
Nellcor O M oxygen transducer, model MAX-A, is used to examine LED
XI AX
intensity control. The red LED is used to verify intensity modulation caused
by the LED intensity control circuit.
1. Sensor Port
1. Connect the monitor to an AC power source.
2. Connect a DOC-10 pulse oximetry cable to the monitor sensor port.
3. Connect a MAX-A sensor to the sensor-input cable.
4. Press the POWER ON/OFF button to turn the monitor on.
5. Leave the sensor open with the LEDs and photo detector visible.
6. After the monitor completes its normal power-up sequence, verify that the
sensor LED is brightly lit.
Performance Verification
21