30 Radical Signal Extraction Pulse Oximeter Operator’s Manual
4
operation
alarms
Check alarm limits each time the pulse oximeter is used to ensure that they are appropriate
for the patient being monitored. An audible alarm and a flashing alarm icon (and indicator
light) will occur when an alarm limit is met or exceeded.
The SpO
2
high alarm limit can be set anywhere between 2% and
100%, with a 1% step size. In the “----” (off) setting, the alarm can
be turned off completely.
The SpO
2
low alarm limit can be set anywhere between 1% and
100%, with a 1% step size.
NOTE: The low alarm limit always has to be set below the high alarm setting. When
the high alarm limit is set below the low alarm limit, the low alarm limit will
automatically adjust to the next setting below the newly entered high alarm limit
setting.
The pulse rate high alarm limit can be set anywhere between
30 BPM and 240 BPM, with a 5 BPM step size.
The pulse rate low alarm limit can be set anywhere between
25 BPM and 235 BPM, with a 5 BPM step size.
NOTE: The low alarm limit always has to be set below the high alarm setting. When
the high alarm limit is set below the low alarm limit, the low alarm limit will
automatically adjust to the next setting below the newly entered high alarm limit
setting.
The Radical stores three types of alarm limits: Adult, Neo or
Custom limits. Adult and Neo limits are preset and cannot be
changed by the user. The following table outlines the default
values of the preset and custom alarm limits.
MENU ITEMS DESCRIPTION
SpO
2
HIGH LIMIT
SpO
2
LOW LIMIT
PULSE RATE
HIGH LIMIT
(BPM)
PULSE RATE
LOW LIMIT
(BPM)
TYPE
OF LIMITS
SpO
2
SpO
2
PULSE RATE PULSE RATE
(HIGH) (LOW) (HIGH) (LOW)
ADULT LIMITS Off 90% 140 BPM 50 BPM
NEO LIMITS 100% 90% 180 BPM 100 BPM
CUSTOM LIMITS Off* 90%* 140 BPM* 50 BPM*
TYPES
*NOTE: The custom limits are set to the values listed in the table at the factory. Once the
values are changed, the new values are retained after a power cycle.
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