ResMed Astral 100 Series User Manual

Assembling patient circuits
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To perform a Learn Circuit:
1. From the Setup main menu, select the Circuit sub-menu.
2. Press Start and follow the on-screen prompts.
Note: Trigger type sets whether a pressure-based or flow-based trigger threshold is used when a Double circuit
is selected.
The prompts will guide you through a number of steps including:
- With the patient interface disconnected from the patient connection port, the Astral device will
characterise the impedance of the inspiratory path.
- With the patient connection port sealed, the Astral device will characterise the total circuit
compliance, and then the impedance of the expiratory path.
A test result screen is displayed if any of the tests fail, otherwise the Learn Circuit function has been
successfully completed and you will be returned to the Main settings page. You can access this
Results screen later using the Review button in the Circuit setting up screen.

ResMed Astral 100 Series Specifications

General

Device Type	Portable Ventilator
Max Pressure	60 cm H2O
Operating Temperature	5°C to 40°C (41°F to 104°F)
Operating Humidity	10% to 95% relative humidity, non-condensing
Display	Color LCD touchscreen
Modes of Ventilation	CPAP
Data Storage	SD card
Alarms	Adjustable visual and audible alarms
Tidal Volume	50 to 2500 mL
Inspiratory Time	0.3 – 5 seconds
FiO2 Monitoring	Yes
Power Supply	AC 100 – 240V, 50/60 Hz
Oxygen Compatibility	Yes
Pressure Range	4 – 60 cm H2O
PEEP	4 to 25 cm H2O