EDAN F6 User manual - Chapter 4 Alarms

F Series Fetal & Maternal Monitor User Manual                                         Alarms 

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Chapter 4 Alarms 

4.1 Alarms Classification 

The monitor has two types of alarm: patient alarm and technical alarm. 

Patient alarms indicate the situation of vital sign exceeding its configured limit. Audible alarms 

and visual alarms can be disabled excluding ASYSTOLE alarm. The adjustable alarm limits 

determine the conditions that trigger the alarm. 

Technical alarms indicate that the monitor can not measure and therefore can not detect critical 

patient conditions reliably. They cannot be disabled. 

In terms of severity, the alarms are divided into three levels: high, medium and low. High level 

alarm indicates the condition where the patient’s life is endangered; it is a severe warning, labeled 

with the symbol ***; Medium level alarm is a moderate warning, labeled with the symbol **; 

low level alarm is a general warning. 

The high level alarms have highest priority, and the medium level alarms take the second place. If 

more than one type of alarms is active at the same time, the monitor sounds an audible indicator 

for the higher level alarms. 

The alarm levels are preset, and can not be changed. 

4.2 Audible Alarm 

If the audible alarm is not disabled, the alarm indicator displays 

. When an alarm is active, 

the monitor gives out an alarm sound (the sound pressure range is 45dB ~ 85dB). 

High level alarm: a “Do” tone is repeated three times, and then pauses for 3 seconds. 

Medium level alarm: a “Do” tone is repeated three times, and then pauses for 5 seconds. 

Low level alarm: a “Do” tone is issued, and then pauses for 20 seconds. 

Press the SILENCE key, the current audible alarm toggles between on and off (temporarily or 

infinitely, you can change the setting). 

If the current audible alarm is temporarily disabled, the alarm indicator displays 

, with a 

remaining time on the right. The audible alarm is enabled again when the time is out, or when the 

SILENCE key is pressed. 

If the current audible alarm is infinitely disabled, the alarm indicator displays 

 (flashing). 

The audible alarm is enabled again 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 

. 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.