Sonicaid FM800 Series Reference Manual
62
7 Events and Alarms
7.1 What is meant by an alarm?
During most monitoring sessions things occur which are to some extent unexpected or
outside normal routine. These are referred to collectively as alarms, even though many
of them are not in the least alarming. They include:
● Signal going outside the normal range
● Loss of signal
● Elapsed time counter
● Failure of the FM800 unit
Of these, the first requires the attention of a midwife or doctor. The signal going outside
the normal range is sometimes cause for alarm and sometimes not.
Other so-called alarms are unlikely to be cause for alarm at all.
7.2 What do you see and hear?
Audible indicators
FM800 has five different beep tones. These indicate:
● Fetal alarms (highest tone)
● Maternal alarms
● Key presses, general warnings, fetal event by marker button or Actogram
● Fetal pulse rate from FECG
● Maternal pulse rate from MECG or MSpO
2 (lowest tone)
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