F15 Series Fetal & Maternal Monitor User Manual Alarms
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in the manner of lighting for one second and pausing for one second. The audible alarm is enabled
again only when the SILENCE key is pressed.
If Alarm Reset is enabled (see 4.9 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.
4.4 Visual Alarm
When an alarm is active,
- The alarm indicator lights up:
Alarm Category Indicator Color Flashing Frequency Duty Cycle
High priority alarm red 1.4Hz to 2.8Hz 20% to 60% on
Medium priority alarm yellow 0.4Hz to 0.8Hz 20% to 60% on
Low priority alarm yellow Constant (on) 100% on
- The alarm message appears in the message window of the main interface, 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 priority is active, the alarm messages appear in the same
area in succession.
When more than one alarm of different priorities are active, only the alarms of the highest priority 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 priority alarm
event; the first number is the current measurement result; the second number is the preset alarm
limit.
The technical alarm messages are displayed in text form, for example “**Battery Low”.
WARNING
Setting alarm limits to extreme values may cause the alarm system to become ineffective. It is
Traditional 510(k) of Fetal & Maternal Monitor
014_14.1_F15_Series_User_Manual
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