Product Manual

22
Alarms and Limits
The Model 7500FO is equipped with audio and visual alarm indicators to
alert the operator to provide immediate patient attention or to abnormal
device conditions.
High Priority Alarms
High priority alarms require immediate attention to the patient. They
include SpO
2,
pulse rate, and low perfusion alarms. On the
Model 7500FO, high priority alarms are indicated by a rapidly blinking red
Alarm Bar LED when the value is equal to or greater than the alarm limit.
In addition, the pulse strength bargraph LED illuminates a red segment to
indicate low perfusion.
High priority alarms are sounded as follows: three beeps, pause, two
beeps and a 10
second pause.
Medium Priority Alarms
Medium priority alarms signal potential problems with the equipment or
other non-life-threatening situations. On the Model 7500FO, medium
priority alarms are indicated with a slowly blinking amber Alarm Bar LED.
Medium priority alarms are illuminated amber on the AlarmBar LED and
on the appropriate indicator(s) or numeric displays, sometimes displaying
an error code to help the user identify the source of the error.
Medium priority alarms are sounded as three beeps and a 25-second
pause.
Watchdog Alarms
Watchdog alarms are loud, two-tone, steadily beeping signals that
indicate a hardware or software malfunction. When a watchdog alarm is
activated, it can be cleared by shutting down the Model 7500FO. If the
watchdog alarm cannot be cleared, remove power and contact your
distributor or NONIN Technical Service.
Informational Tones
Informational tones communicate important information. They are
typically single beeps or a series of three beeps. Informational tones
include the startup/initialization tone and the pulse rate tone (which
changes in pitch with SpO
2
values: higher tones for higher SpO
2
, and
lower tones for lower SpO
2
).