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Performance Verification
14
14. Press the Pulse Rate Alarm Limit button two times (twice within 3
seconds). Verify that the N-550B emits two beeps and that the Pulse
Rate display indicates an alarm limit of "40" for 3 seconds. Verify that
"LO" is displayed in the %SpO
Figure 7: Adjusting Low Pulse Rate Alarm Limit
15. Press the Pulse Rate Alarm Limit button two times rapidly. Within 3
seconds press and hold the Adjust Down button. Verify that the Pulse
Rate display cannot be raised past the upper alarm limit setting minus
one point.
16. Turn the N-550B off by pressing the Power On/Off button.
17. Turn the N-550B on by pressing the Power On/Off button.
18. Wait for POST to be completed. The %SpO
will be reset to the default values.
19. Press the Pulse Rate Alarm Limit button two times rapidly. Within
three seconds press and hold the Adjust Up button. Verify that the Pulse
Rate display cannot be adjusted above the upper alarm limit setting
minus one point.
20. Press the SatSeconds Alarm Limit button. Verify that the N-550B emits a
single beep and that the Pulse Rate display indicates an alarm limit of
"OFF" for three seconds. Verify that "SAS" is displayed in the %SpO
display.
display.
2
and pulse rate alarm limits
2
2
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