Nellcor OXIMAX N-595 Service Manual page 26

Performance Verification
Nurse Call
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3. Press the ADJUST UP button to return the beep volume to a comfortable
level.
4. Remove the sensor from your finger. Disconnect the DOC-10 monitor
cable and the sensor.
1. Data Port Connector
1. Connect the negative lead of a voltmeter to pin 5 and positive lead to pin
11 of the data port connector (1) on the back of the monitor. Ensure that
the audible alarm is not silenced or turned off.
2. Connect the SRC-MAX tester to the DOC-10 sensor cable.
3. Connect the DOC-10 sensor cable to the monitor SpO
4. Turn on the monitor and wait for the monitor to complete POST.
Note: The monitor should indicate a %SPO2 alarm of 75.
5. Verify an output voltage at pins 5 and 11 between +5 to +12 VDC.
6. Press the ALARM SILENCE button. With no active audible alarm, the
output voltage at pins 5 and 11 must be between -5 to -12 VDC. This
verifies the RS-232 Nurse Call function.
7. With the instrument in an alarm condition, use a digital voltmeter (DVM)
to verify that there is no continuity (1 megohms or greater) between pins 8
connector.
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