Philips Expression MR400 - Audible Alarm Indications; Alarm Sound State Indication

4‐4AlarmsExpressionMR400InstructionsforUse
Audible Alarm Indications
WARNING
Do not rely exclusively on the audible alarm system for patient monitoring. Adjustment of
alarm volume to a low level or off during patient monitoring may result in patient danger.
Remember that the most reliable method of patient monitoring combines close personal
surveillance with correct operation of monitoring equipment.
Dependingupontheseverityandtypeofthealarmcondition,alarmprioritytoneswithdistinct
pitchesaresoundedbythespeaker(seeillustrationonpage4‐3).Whenmultiplealarmsare
detected,thehighestpriorityalarmisannounced.
Onceactivated,anaudiblealarmindicationcontinuesaslongasthealarm
conditionispresentor
untilyouacknowledgethealarmbypressingtheAudioPausekeyortheAlarmkey(orbyplacing
theMR400insuspendmode).
Alarm Sound State Indication
Dependinguponthecurrentsetting,oneofthreepossiblesymbolsareprovidedtoindicatethe
alarmsoundstate,whichisdisplayedatalltimesintheinformationbar(seepage2‐14).Symbol
definitionsforthealarmsoundstateareprovidedinthetablebelow.
Alarm priority Fixed Pitch Mnemonic Notes
High c c c – c c
Medium c c c
INOP e c
Displayed Symbol Alarm Sound State
Alarm audio armed
Alarm audio paused
Alarm audio off