User's Manual

F Series Fetal & Maternal Monitor User Manual Alarms
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WARNING
1 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.
2 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.
3 Do not disable the audible alarm infinitely for the condition where the patient’s safety
may be endangered.
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,
- Alarm indicator: the alarm indicator lights up:
Alarm Category Indicator Color Flashing Frequency Duty Cycle
High level alarm red 1.4Hz to 2.8Hz 20% to 60% on
Medium level alarm yellow 0.4Hz to 0.8Hz 20% to 60% on
Low level alarm yellow Constant (on) 100% on
- Alarm message: 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.
- Flashing numeric: the numeric of the measurement flashes in grey with a frequency of 2Hz.
When more than one alarm is active, the alarm messages appear in the same area in succession.
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
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 “Fetus EQUIP MALF”.
WARNING
Setting alarm limits to extreme values may cause the alarm system to become
ineffective. It is recommended to use the default settings.