Covidien Nellcor - Tone Definition; Table 11-2. Tone Definitions

Tone Definition
Operator’s Manual 93
11.5 Tone Definition
Table11-2.Tone Definitions
Tone Category Description
High Priority Alarm Tone
Volume level Adjustable (level 1-8)
Pitch (± 20Hz) 976 Hz
Pulse width (± 20msec) 150 msec (IEC60601-1-8)
Number of pulses in burst 10, interburst interval of 4 sec (IEC60601-1-8)
Repetitions Continually
Medium Priority Alarm Tone
Volume level Adjustable (level 1-8)
Pitch (± 20Hz) 697 Hz
Pulse width (± 20msec) 150 msec (IEC60601-1-8)
Number of pulses in burst 3, interburst interval of 8 sec (IEC60601-1-8)
Repetitions Continually
Low Priority Alarm Tone
Volume level Adjustable (level 1-8)
Pitch (± 20Hz) 488 Hz
Pulse width (± 20msec) 250 msec (IEC60601-1-8)
Number of pulses 1, interburst interval of 16 sec (IEC60601-1-8)
Repetitions Continually
Alarm Reminder Tone
Volume level Not changeable
Pitch (± 20Hz) 800 Hz
Pulse width (± 20msec) 200 msec
Number of pulses 1 pulse per 1 second, 3 min ~ 10 min interburst
Repetitions Continually