Depending on how your monitor is configured, it may display alarm limit violation messages:
in text form, for example
in numeric form, for example
alarm limit, and the first number shows the value at which that alarm limit was violated by the
Flashing numeric: The numeric of the measurement in alarm flashes.
Bright alarm limits: If the alarm was triggered by an alarm limit violation, the corresponding alarm
limit on the monitor screen is shown more brightly.
Audible Alarm Indicators
The audible alarm indicators configured for your fetal monitor depend on which alarm standard
applies in your hospital. Audible alarm indicator patterns are repeated until you acknowledge the alarm
by switching it off or pausing it, or until the alarm condition ceases (if audible alarm indication is set to
Do not rely exclusively on the audible alarm system for fetal monitoring. Adjustment of alarm volume
to a low level or off during monitoring may result in a dangerous situation. Remember that the most
reliable method of fetal monitoring combines close personal surveillance with correct operation of
Alarm Tone Configuration
The audible alarm indicators of your monitor are configurable. In the monitor's Configuration Mode,
increase the alarm volume of unacknowledged alarms at regular intervals
change the interval between alarm sounds (ISO/IEC Standard alarms only)
change the base volume of the red and yellow alarm tones and the INOP tones
change the alarm sound to suit the different alarm standards valid in different countries.
Standard Philips Alarms
Red alarms: a high pitched sound is repeated once a second.
Two-star yellow alarms and yellow INOPs: a lower pitched sound is repeated every two seconds.
One-star yellow alarms (short yellow alarms): the audible indicator is the same as for yellow
alarms, but of shorter duration.
Standard INOPs: an INOP tone is repeated every two seconds.
ISO/IEC Standard Audible Alarms
Red alarms and red INOPs: a high pitched tone is repeated five times, followed by a configurable
Two-star yellow alarms and yellow INOPs: a lower pitched tone is repeated three times, followed
by a configurable pause.
** FHR1 Low
, where the second number shows the currently set