4-42 250 Series Maternal/Fetal Monitor Revision D
2020551-001
Maintenance: MSpO
2
Test
22. Depress the monitor’s front panel Alarm Silence button and verify the following:
The alarm tone is silenced.
The MECG value continues flashing.
The message ALARM SILENCE X:XX appears on the screen and a countdown
is started.
23. Wait the user-specified re-alarm time and verify the following:
The alarm tone is once again emitted from the rear panel speaker.
24. Use the simulator’s Manual Adjustment knob to decrease the MECG signal to 60
bpm. Verify the following on the monitor:
The alarm tone is silenced.
The MECG value no longer flashes.
After 10 seconds, the two above conditions are still true.
MSpO
2
Test
1. Access the 250 Monitor’s
MSpO
2
Setup
window and configure as follows:
(Nellcor only) Response Time = Fast
(Masimo only) Sensitivity = Normal
(Masimo only) Averaging = 8
Print Interval = 2 minutes
% O2 Trace = On
2. Access the monitor’s Install Options Screen 1 and set the SpO
2
Scale to Auto.
Select Store Current to Hospital. Exit the service mode by selecting Restart at the
bottom of the screen.
3. Access the monitor’s MHR/P Setup window and configure as follows:
MHR/P Source = MSpO
2
MHR/P HR/PR Trace = On
4. Connect an SpO
2
finger sensor.
5. Allow the monitor a few seconds to obtain a steady reading.
6. Turn on the recorder and allow data to collect for at least five minutes.Verify
the following on the monitor:
The correct waveform appears on the display.
The MSpO
2
displays a value.
The MSpO
2
pulse amplitude indicator shows a fluctuating bar graph.
The MHR/P display mode is Pulse.
The MHR/P displays a value.
The MHR/P trend plots in the top grid with the above value.
The MSpO
2
scale grid marks stamp on the paper.
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