Airon pNeuton A, Operator'S Manual

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pNeuton Ventilator 7 - 10
used. In addition, safe MRI practice calls for all devices
used in the proximity of a MRI scanner be anchored to
prevent inadvertent movement.
Disconnect Alarm
The ventilator has an internal patient circuit disconnect
alarm system. This system cannot be turned off. If a
circuit disconnect is sensed, the visual indicator on the
front panel will illuminate and the audible alarm will sound.
The alarm will activate as soon as an oxygen source is
turned on to the ventilator. Attaching the ventilator to a
patient and starting ventilation will automatically reset the
alarm system and turn off the audible and visual indicators.
The alarm system can be momentarily silenced by
pressing the Reset / Silence button on the front panel.
Pressing this button turns off the visual and audible
indicators for 1 minute. Each time the Reset / Silence
button is pressed, the alarm system restarts the 1 minute
silence time delay. This delay is NOT cumulative. In other
words, repeatably pressing the Reset / Silence button will
not increase the silence time by more than 1 minute.
The alarm system is entirely pneumatic and uses no
electricity. A series of valves and pneumatic capacitances
provide the sensing network. Two subsystems are used,
one for when Mandatory Breaths are turned on and
another for when Mandatory Breaths are turned off. This
allows the alarm to operate when only CPAP is functioning.
Due to the nature of this system, a minimum CPAP of 5 cm
H
2
O is required. If CPAP is set for less than 5 cm H
2
O and
Mandatory Breaths are not turned on, the alarm system will
activate.
The alarm system provides a passive, non-electrically
charged remote alarm output on the rear of the ventilator.