F9, F9 Express Fetal & Maternal Monitor User Manual Alarms
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is enabled again only when the SILENCE key is pressed.
If Alarm Reset is enabled (see 4.8 Pausing or Resetting the Alarm), and you press the SILENCE
key to disable an audible alarm, the alarm indicator will display , which is flashing in the
manner of lighting for one second and pausing for one second. When other alarms present, the
monitor will enable the audible alarm again automatically.
During the silence period, the alarm messages are displayed and the alarm indicator lights up as
usual. You can press the SILENCE key again to enable the audible alarm.
WARNING
1 If the patient safety may be endangered, do not switch off the audible alarm infinitely.
2 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.
3 When the sound pressure of audible alarm is equivalent to the ambient noise, it may
be difficult for the operator to distinguish the audible alarm.
NOTE:
After you enable the audible alarm again, whether the alarm sound still exists depends
on whether the alarm persists.
4.3 Visual Alarm
When an alarm is active,
- the alarm indicator lights up:
- the alarm message appears in the message window of the main interface in yellow, with patient
alarms on the left and technical alarms in the middle.
- the numeric of the measurement flashes in grey with a frequency of 2Hz.
When more than one alarm of the same level is active, the alarm messages appear in the same
area in succession.
When more than one alarm of different levels are active, only the alarms of the highest level are
displayed in the message window.
The patient alarm messages are displayed either:
in text form, for example “** FHR2 LOW”; or
in numeric form, for example “** FHR2 115 < 120”; ** indicates this is a medium level
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