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
Summary of Contents for Nellcor
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