Product Manual
M3A Vital Signs Monitor User Manual Alarm
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5.2 Alarm Cause
Alarm occurs when:
1. Physiological alarm is evoked;
2. Alarm for error of the system (technical alarm) is evoked;
3. General alert occurs.
A. Conditions that activate the parameter alarms:
The measurement value exceeds the alarm limit and the alarm is set to ON. Alarms will not be
activated if the alarm is set to OFF.
B. Conditions that activate the system alarms (technical alarm):
Upon the system error, the monitor prompts alarm immediately.
C. General alert
In some circumstances, alerts will behave as physiological alarms in normal senses, we do not
regard them as real patient health related items.
5.3 Silence
The user can press SILENCE on front panel to stop audio alarm or turn off the audio system. If
an alarm occurs during this period, the monitor can still give alarm.
1. Audio alarm pause icon
Press and hold the SILENCE button on front panel for less than 2s, then the audio alarm is
stopped for 2 min, and the indicator beside the button flashes. The audio alarm pause icon
displays. Pressing SILENCE again can resume the audio alarm.
2. Audio system off icon
Press the SILENCE button for more than 2s, the audio system is turned off, including the audio
alarm, key volume and pulse tone, at the same time the indicator beside the button is on. Pressing
SILENCE again can turn on the audio system.










