Troubleshooting; Alarm Details And Actions - Cardinal Health AirLife nCPAP Hardware Service Manual

15.

TROUBLESHOOTING

The following section contains tables that define the Alarm and Warning Conditions that may be
encountered.

15.1 Alarm Details and Actions

The following table defines the potential Alarms that may appear during the Power-On Self
Test and during Patient Treatment Mode (the main screen). The alarm description, priority
(low, medium, high), alarm indicators and suggested action to most likely remedy the
condition are also included.
Alarm Priority
Elevated Pressure (2 Medium
cm H O over Set
2
Value)
Low Pressure (2 cm Medium
H O under Set
2
Value)
High Pressure (≥12 High
cm H O for 2
2
seconds or
≥18 cm H O
2
instantaneously)
Disconnect Medium
(Table Based)
% O Alarms Medium
2
(Utilizes an oxygen
time product. Time
product is defined
as: the variance
outside of this FiO
2
High
range multiplied by
the duration of the
variance.)
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Indication
• Audible alarm
• Yellow flashing Warning
LED
• Message Bar
• Audible alarm
• Yellow flashing Warning
LED
• Message Bar
• Audible alarm
• Red flashing Fault LED
• Message Bar
• The patient delivery
valve closes and a relief
valve opens immediately
upon alarm. System
attempts to reinitiate
treatment every three (3)
seconds until the alarm
condition clears.
• Audible alarm
• Yellow flashing Warning
LED
• Message Bar
• The flow rate is adjusted
to Target Flow ± 2 lpm.
• Audible alarm
• Yellow flashing Warning
LED
• Message Bar says "FiO
2
Limit"
• Audible alarm
• Red flashing Fault LED
• Message Bar says "FiO
2
Warning"
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AirLife nCPAP Driver Service Manual
Suggested Action
• Check the exhaust tube for occlusions or restrictions
• Check for leaks in the tubes and circuit, or in the nasal
prongs and mask
• Check supply gases
• Check the exhaust tube for occlusions or restrictions
• Check for leaks or disconnections in the tubes and circuit,
or in the nasal prongs and mask.
• Check Supply Gases
• Restart driver to perform oxygen sensor calibration
• Check supply gases
• Restart driver to perform oxygen sensor calibration