Pneumatic Diagram Legend - Siare Falco 202 Evo User Manual

A.4.1 Pneumatic diagram legend
O ( 2,7 - 6 Bar )
2
Filter
PR
Pressure
transducer
MIXER
Blower
Oxygen sensor
Flow sensor
INSP valve
PAW pressure
transducer
EXP valve
EV1-NA
EV2-NA
Falco 202 Evo
Inlet for medical oxygen coming from an high pressure source (2,7 – 6 bar).
Medical gas infeed filter
Pressure regulator. It reduces the infeed gas pressure at a stable value of 2.6
bar.
Medical gas supply pressure sensor. It signals when the gas pressure is
missing or is insufficient.
Group of 4 electro-valves, that opening and closing, allow the mixing of O
Air at a frequency corresponding to the O
The turbine is driven by a brushless motor and it has the function to
administrate the room air to the patient, once opportunely filtered by a dust and
pollen filter at inlet. The turbine rotation speed is regulated by a microprocessor
control.
Polarographic oxygen transducer. It measures the real oxygen concentration
administered to the patient.
It has the function to measure the flows of Air and O
patient. The measuring range of such a sensor is from 0.1 to 200 l/min.
Unidirectional mechanical valve positioned on the inspiratory line. It has the
function to allow the patient to breathe room air in case of emergency and to
protect the turbine against backflows on inspiratory line.
Pressure sensor by semi-conductor. It has the function to continuously measure
the inner pressure of breathing circuit.
Expiratory valve servo-controlled by the EV1-NA and EV2-NA electro-valves, it
is closed during the inspiratory phase and it is open during the expiratory phase.
12 V pilot electro-valve, normally open, controlled by microprocessor, it is
closed when the PEEP value is set on 0 or in case the high pressure alarm limit
is reached.
12 V pilot electro-valve, normally open, controlled by microprocessor, it has the
function to regulate the necessary flow to drive the expiratory valve.
concentration set.
2
administered to the
2
with
2
A-19