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7.3 Understanding the Alarms
7.3.1 Alarm Categories
The monitor has two different types of alarms: physiological alarms and technical alarms.
■ Physiological alarms are triggered by patient measurement exceeding the
parameter limits, or by an abnormal patient conditions.
■ Technical alarms are triggered by an electrical, mechanical, or other monitor
failure, or by failure of a sensors or components. Technical alarm conditions may
also be caused when an algorithm cannot classify or interpret the available data.
Apart from the physiological and technical alarms, the monitor can also prompt some
messages telling the system status or patient status.
7.3.2 Alarm Priorities
By severity, the alarms are classified into the following priority levels:
■ High priority alarms: indicates a life threatening situation or a severe device
malfunction. High priority alarms require an immediate response.
■ Medium priority alarms: indicates abnormal vital signs or a device malfunction.
Medium priority alarms require a prompt response.
■ Low priority alarms: indicates a discomfort condition, a device malfunction, or an
improper operation. Low priority alarms require you to be aware of this condition.
■ Messages: provides additional information on the patient or the equipment.
7.3.3 Alarm Indicators
When an alarm occurs, the monitor indicates it to you through visual or audible alarm
indications. For more information, see the following table.
Alarm Indicator
High Priority
Alarm
Medium Priority
Alarm
Low Priority
Alarm
Message
Alarm lamp Red
Flashing
frequency: 1.4 -
2.8 Hz
Duty cycle: 20 -
60% on
Yellow
Flashing
frequency: 0.4 -
0.8 Hz
Duty cycle: 20 -
60% on
Cyan
No flashing
Duty cycle:
100% on
None
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