OPRHT70 A0310
6-6
6
Ventilator Alarms
additional breaths until the situation is resolved. The alarm resets
when the occlusion is resolved and breath delivery will resume at that
point.
Check Circuit Alarm
This alarm indicates that the circuit has become disconnected or
the proximal pressure tubing is disconnected, kinked or has water in
it. Check the circuit for disconnects or problems with the prox line
pressure tubing/prox line filter.
NOTE: Be sure to keep the Prox Inline Filter clean and dry at all times.
Pressure Control Setting Not Reached Alarm
The Pressure Control Setting Not Reached alarm is activated by
inadequate pressure rise during pressure controlled breaths. Check
that Slope/Rise is set to a high enough level and check for leaks.
No External Power Alarm
The No External Power Alarm is activated by disconnection from the
power cord or a power interruption. The ventilator will automatically
switch to the Power Pac battery pack or back up battery. Pressing
the Alarm Silence/Reset button will clear the alarm.
Device Alert Alarm – System Error
The Device Alert Alarm is activated when the microprocessor detects
a functional problem with the ventilator. When this occurs, the
ventilator must be powered down by pressing the On/Off button on
the back of the unit.
If the cause of the System Error does not allow the HT70 to display the
alarm message and the Device Alert indicator to light, the ventilator
will shut down and the Shut Down Alert Alarm will activate. Upon
the next power up of the unit, the SYSTEM ERROR message will be
displayed. If the cause of the alarm has been corrected, the message
can be canceled by pressing the Alarm Silence/Reset button.
WARNING If a Device Alert alarm occurs, immediately disconnect
the patient from the ventilator and provide an alternate method of
ventilation until the cause of the alert has been determined and
corrected.
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