Mindray iPM-9800, Руководство оператора

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11-5
After approximately 10.9 seconds, a Sat-Second alarm would sound, because the limit of 50
Sat-Seconds would have been exceeded.
Saturation levels may fluctuate rather than remaining steady for several seconds. Often, the
patient % SpO
2
may fluctuate above and below an alarm limit, re-entering the non-alarm
range several times. During such fluctuation, the monitor integrates the number of %SpO
2
points, both positive and negative, until either the Sat-Seconds limit is reached, or the
patient%SpO
2
re-enters the non-alarm range and remains there.
11.5.6 Pitch Tone
The pitch tone function enables the patient monitor to give a variable pitch of the heart beat
tone or pulse beat tone as the patient’s saturation level changes. This monitor provides 22
levels of pitch tone. The pitch of the heart rate tone or pulse rate tone rises as the saturation
level increases and falls as the saturation level descreases. There are two pitch tone modes:
[
Mode 1
] and [
Mode 2
], of which you can select either in configuration mode. The pitch tone
volume can be changed in certain measurements’ setup menu. If PR is selected as the alarm
source in the [
ECG Setup
] menu, the pitch tone volume is subject to the pulse beat tone.
Otherwise, the pitch tone volume is subject to the heart beat tone. When either the pulse beat
tone or the heart beat tone is set to 0, the pitch tone volume will be muted. If the SpO
2
is
disabled, the pitch tone function will be disabled also.
SpO
2
%
Seconds