Philips Expression MR400 - Alarm Safety Information; Visual Alarm Indications; Alarm Flags

4‐2AlarmsExpressionMR400InstructionsforUse
Thebluealarmlightcanbeonatthe sametimeastheredoryellowalarmlight.Whenanumeric
valuebecomesmissingduetoanINOP,theINOPalarmwillbepresentaswellasthepatient
alarm(dueto
themissingvalue),withbothoriginatingfromthesamecause.
AlarmDelays
Thereisanalarmsoundandanalarmlightilluminationdelayofnomorethan4secondsfollowing
thedisplayedalarmflag,providedthatthealarmconditionstillexistsafterthisdelay.
Alarm Safety Information
WARNINGS
• The monitor detects and responds almost immediately to most out-of-limits conditions,
except when averaging of the physiological signal is required to reduce unwanted noise
signals (for example, respiration rates and measurements derived from SpO2 signals.)
• Set the alarm volume based upon the ambient noise levels in the MR environment.
Some areas in the MR environment, such as the MR system room, may have ambient
noise levels louder than the maximum volume of the MR400. Therefore, displayed data
should be continuously monitored. Otherwise, if sound was inaudible, treatment of the
patient could be delayed. For visual alarms, adjust the position of the MR400 so that
you maintain a clear view of the display.
Visual Alarm Indications
Dependinguponthealarmcondition,visualalarmindicationscanincludeanalarmflag,a
flashingnumeric,andanilluminatedalarmlight;whenmultiplealarmsaredetected,multiple
visualindicationsmaybepresented.
Alarm Flags
Alarmflagsarevisualindicatorsthatcontainanalarmmessagedisplayedonabackgroundcolor
thatidentifiesthepriorityofthealarm(seetablebelow).Analarmflagisdisplayedforthe
durationofanalarmcondition.Multiplealarmflagsaredisplayedwhenmultiplealarm
conditionsexist.
AlarmPriority DisplayedBackgroundColor
High(patientalarm) Red
Medium(patientalarm) Yellow
INOP(statusortechnicalalarm) Blue