12-2 Nightingale PPM3 User's Guide April 2019
12.1. Alarm Presentation Basics
There are three "grades" of alarms on the PPM3 – high, medium, and low – and
they all present in different ways as described in the following two tables.
12.1.1. Audible Alarm Tones
Five higher-pitch tones (three
quick, pause, two more)
repeated every 8 seconds
A "high grade" alarm indicating an
immediately life-threatening condition
(e.g. asystole or ventricular fibrillation)
Three medium-pitch tones
repeated every 15 seconds
A "medium grade" alarm indicating a
physiological condition that may be
serious (e.g. parameter limit violations)
A single lower-pitch tone
repeated every 20 seconds
A "low grade" alarm indicating a
technical condition (e.g. lead off)
12.1.2. Visual Alarm Colors
Red background
parameter box
and message area
Flashing color – twice
per second
A "high grade" alarm is
currently active and has not
been acknowledged
Solid color with alarm
silence symbol to the left
of the message area
A "high grade" alarm is
currently active but has
already been silenced
Yellow
background
parameter box
and message area
Flashing color ‒ once
every 2 seconds
A "medium grade" alarm is
currently active and has not
been acknowledged
Solid color with alarm
silence symbol to the
left of the message area
A "medium grade" alarm is
currently active but has
already been silenced
Cyan background
parameter box
and message area
A "low grade" alarm is
currently active and has not
been acknowledged
Solid color with alarm
silence symbol to the
left of the message area
A "low grade" alarm is
currently active but has
already been silenced
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