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VS Serena - ResMed

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User's Manual<strong>VS</strong> <strong>Serena</strong>10.2 FunctioningThe gas source is driven by an internal blower (the external air is inhaled through a dust filter). The positiveinspiratory and expiratory pressures are driven at the settings with a pneumatic distributor.During the insufflation, a rotating valve drives the air of the blower towards the patient. At the expiration, itdrives the expired gas through the exhalation outlet. Thus it reduces the concentration of re-inhaled CO 2 duringthe next cycle.Inspiratory and Expiratory triggers are based on inspiratory Pressure signal analysis, pressure settings andclosed loop blower signal.10.3 Power supplyClass II, type BF deviceMains : 230/100 VAC 50-60 Hz 52 VA Imax = 630 mAExternal supply : 26 VDC +/- 10 % 3A maximum (CE medical EN60601-1)10.4 SpecificationsSound level : 29 dBA (measured under ISO3744 & EN17510 standard)Weight : 2,5 kgDimensions : 135 mm x 285 mm x 204 mmCompliance : no measurableMaximum adjusted pressure : 30 hPaMaximum pressure in 1 st fault condition : 39 hPaFlow at 10, 20, 30 hPa : 204 L/min, 180 L/min, 168 L/minDeliverable maximum minute volume :In the optimal adjustment conditions, IPAP=30, EPAP=4, various frequency, and for the followingphysiological characteristics : Rp = 20 C=0,05 V=20 L/minRp = 5 C=0,05 V=35 L/minInspiratory resistance :Flow = 60L/min R = 4,7 hPa (+ tube resistance)Expiratory resistance :Flow = 60L/min R = 4,3 hPa (+ tube resistance)Used materials in direct contact with patient gaz : ABS, Aluminium, Silicon, Stainless steel, Polyester,Brass, Chrome.NEAT0202079-K 28/31

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