10-3
10.4.1 Alarm Lamp
If a technical alarm or physiological alarm occurs, the alarm lamp will flash. The flashing
color and frequency match the alarm priority as follows:
High priority alarms: the lamp quickly flashes red.
Medium priority alarms: the lamp slowly flashes yellow.
Low priority alarms: the lamp turns yellow without flashing.
10.4.2 Audible Alarm Tones
The ventilator uses different alarm tone patterns to match the alarm priority:
High priority alarms: broadcasts the high priority alarm tone.
Medium priority alarms: broadcasts the medium priority alarm tone.
Low priority alarms: broadcasts the low priority alarm tone.
A-weighted sound pressure level of audible alarm signals:
Position of the operator: 1-meter in front of and 1.5-meter above the ventilator.
A-weighted sound pressure level: not less than 45dB and not greater than 85 dB. The
high priority alarm volume is not less than 60dB at the default alarm volume level.
10.4.3 Alarm Message
When an alarm occurs, an alarm message will appear in the ventilator’s alarm message filed.
The alarm message uses a different background color to match the alarm priority:
High priority alarms: red
Medium priority alarms: yellow
Low priority alarms: yellow
The exclamatory marks (!) before the alarm message match the alarm priority as follows:
High priority alarms: ！！！
Medium priority alarms: ！！
Low priority alarms: ！
10.4.4 Flashing Alarm Numeric
If an alarm triggered by an alarm limit violation occurs, the numeric of the measured
parameter in alarm will flash at a specified frequency.
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