Alarm flags associated with a vital sign are displayed alongside the VS box of that parameter (see
illustration below), while alarm flags associated with the system are displayed in the system
message area (middle and top center of the touch screen, see page 2‐21). When multiple alarm
flags are present, they will be stacked in a column.
During an patient alarm condition, the vital sign numeric will change color and flash to indicate
the source, type and priority of the alarm:
While the violation continues, the numeric of the violated parameter will flash in priority color of
the detected alarm.
During an alarm condition, the alarm light (see
inset) can illuminate to provide a 360 degree,
visual indication of the alarm priority, as detailed
in the table below.
Multiple colors can be illuminated when
multiple alarm conditions exist. The alarm light
is a menu‐controlled feature; see page 4‐20 for
INOP (status or technical alarm)
Expression MR400 Instructions for Use Alarms 4‐3
Alarm flag (an INOP in this example)
High priority patient alarm—red numeric, flashing at 1.5 Hz with a 50% duty cycle.
Medium priority patient alarm—yellow numeric, flashing at 0.75 Hz with a 50% duty cycle.
High (patient alarm)
Medium (patient alarm)
Alarm light, red or yellow
Flashing, 1.5 Hz with a 50% duty cycle
Flashing, 0.75 Hz with a 50% duty cycle
Alarm light, blue