Philips RESPIRONICS Trilogy Mode D'emploi page 6

Ventilator Service Required Alarm
This is a high priority alarm. It occurs when the device cannot perform to specification, a backup safety feature is
compromised, or the delivery of therapy is compromised. The device continues to operate (possibly in a reduced capacity
mode). If the problem is not corrected, the device will generate a reminder message once per hour until the issue is
corrected. Additionally, if therapy is stopped, a reminder message will immediately appear when therapy is turned on again.
High Temperature Alarm
This alarm occurs when the estimated patient airstream temperature or the ventilator internal temperature is too high.
The alarm occurs in several stages. The ventilator continues to operate. Internal fans are started when the medium priority
alarm is generated. If the condition causing the high temperature is not corrected and the temperature continues to rise,
the alarm will escalate to the high priority alarm.
Low Battery Alarm
The Low Battery alarm occurs when the last battery available is low or nearly depleted. This alarm occurs in two stages.
When approximately 20 minutes of battery run time remains, a medium priority alarm is generated, and the device
continues to operate. If no action is taken and the battery continues to deplete, the alarm escalates to a high priority alarm
when approximately 10 minutes of battery run time remains.
Replace Detachable Battery Alarm
The Replace Detachable Battery alarm occurs when the detachable battery is nearing the end of its useful life or a failure in
the detachable battery that prevents it from charging or discharging has been detected.
The alarm occurs in several stages, from low to high priority. The device continues to operate when the alarm is the low
priority alarm. If the alarm is reset without removing the battery, the alarm will be regenerated once every hour until the
detachable battery is removed. The device continues to operate, the detachable battery is not used, and the power source
is switched to the next available power source if the alarm is the high priority alarm.
AC Power Disconnected Alarm
This is a medium priority alarm. It occurs when the AC power source was lost, and the device has switched to an alternate
power source (either a detachable or external battery, if connected, or the internal battery if no other source is available).
The device continues to operate. If AC power returns, the ventilator will beep, but no message will appear on the display.
Keypad Stuck Alarm
This is a low priority alarm. It occurs when a key becomes lodged inside the case of the device.
Informational Messages
Battery Discharging Stopped due to Temperature
This info message occurs when the detachable or internal battery becomes overheated while providing power for the
device. The device continues to operate. The battery is not used and the power source is switched to the next available
power source.
Battery Not Charging due to Temperature
This info message occurs when the detachable or internal battery becomes too hot while charging or the device was in
too cold an environment before charging started. The device continues to operate. Battery charging stops until the battery
cools or warms sufficiently.