ResMed Astral Series Clinical Guide

Technical specifications
138
Technical specifications
Operating pressure range
Single limb with valve or double limb with valve: 3 to 50 hPa
Single limb with intentional leak: 2 to 50 hPa
CPAP: 3 to 20 hPa
Maximum working pressure limit: 10 to 80* hPa
*Not applicable on all device variants
Forced cycling occurs if the Pressure alarm limit is exceeded.
Operating tidal volume range (volume
control modes)
Adult patient type: 100 to 2500 mL
Paediatric patient type: 50 to 300 mL*
Circuit resistance and compliance range
for stated accuracy of monitoring and
control**
Paediatric patient setting:
Circuit resistance range (circuit with intentional leak): 0 to 8 hPa at
60 L/min
Circuit resistance range (circuit with valve): 0 to 20 hPa at 60 L/min
Circuit resistance range (mouthpiece circuit): 0 to 5 hPa at 60 L/min
Circuit compliance range: 0 to 4 mL / hPa
Adult patient setting:
Circuit resistance range (circuit with intentional leak): 0 to 20 hPa at
120 L/min
Circuit resistance range (circuit with valve): 0 to 35 hPa at 120 L/min
Circuit resistance range (mouthpiece circuit): 0 to 15 hPa at 120 L/min
Circuit compliance range: 0 to 4 mL / hPa
Breathing resistance under single
fault***
Paediatric circuit
Inspiration: 2.2 hPa (at 15 L/min), 5.3 hPa (at 30 L/min)
Expiration: 2.4 hPa (at 15 L/min), 5.0 hPa (at 30 L/min)
Adult circuit
Inspiration: 5.7 hPa (at 30 L/min), 8.3 hPa (at 60 L/min)
Expiration: 4.2 hPa (at 30 L/min), 6.2 hPa (at 60 L/min)
Maximum flow
220 L/min
Inspiratory trigger (nominal)
characteristics
Inspiratory trigger occurs when patient flow exceeds trigger setting.
Double limb with valve (flow trigger): 0.5 to 15.0 L/min
Single limb with valve or double limb with valve: 1.6 to 10.0 L/min (in five
steps)****
Single limb with intentional leak: 2.5 to 15.0 L/min (in five steps)
Mouthpiece (tube only) circuit: 2.0 to 4.0 L/min (in four steps)
Expiratory cycle (nominal)
characteristics
Cycle occurs when inspiratory flow declines to the set percentage of peak
inspiratory flow.
5 to 90%
Sound pressure level
35 ± 3 dBA as measured according to ISO 80601-2-72:2015
Sound power level
43 ± 3 dBA as measured according to ISO 80601-2-72:2015
Alarm volume range
56–85 dBA (in five steps) as measured according to IEC 60601-1-8:2012
Data storage
7 days of high-resolution airway pressure, respiratory flow and delivered
volume (sampled at 25 Hz).
7 days of breath-related therapy data (sampled at 1 Hz).
365 days of statistical data per program.

ResMed Astral Series Specifications

General

Type	Ventilator
Display	color LCD
Connectivity	USB
EPAP	0 to 25 cm H2O
Rise Time	Adjustable
PEEP	0 to 25 cm H2O
FiO2 Monitoring	Yes, with optional oxygen module
Battery Backup	Internal and external battery options
Oxygen Capability	Yes, with optional oxygen module
Alarms	Low battery
Pressure Support	0 to 30 cm H2O