Alarms
Instructions for Use Apollo SW 4.5n 185
Part Number: 9053586, 3rd edition
Alarm priorities and alarm signals
Figure 111. Alarm Display
Rather than being displayed immediately, some
alarms are shown with a delay after a limit violation.
In addition, combinations with other alarms, and the
length of time for which the alarm is issued, may
cause the priority of an alarm to change, similarly the
acknowledgement of a technical alarm.
Alarm messages are color-coded and assigned to
three priority classes by the Apollo, depending on
their urgency:
Warning
– Message with highest priority.
– A warning message requires immediate action.
– Text flashes on red background.
– Red LED (2 in Figure 111) flashes, accompanied
by a repetitive tone sequence.
Caution
– Message with medium priority.
– A caution message requires immediate action.
– Text flashes on yellow background.
– Yellow LED (3 in Figure 111) flashes,
accompanied by a repetitive 3-tone sequence.
Advisory/technical message
– Message with lowest priority.
– Text displayed on cyan background.
Advisory
– Yellow LED (3 in Figure 111) illuminates
continuously, accompanied by a single 2-tone
sequence.
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