ACUTRONIC fabian Therapy evolution - Gas Blender Function

92 Technical specifications
fabian Therapy evolution | SW 5.1.x
Ref: 121003.EN / Date 2020-01-22
17.10 Gas blender function
The Air Oxygen Blender provides a Gas blend with adjustable proportions of Oxygen and Air.
Gas from the central gas supply enters the device through the gas input connections.
Blending of the gases occurs through two proportional valves.
The Proportional Valves, which also act as return valves, prevent the return flow of a gas into the
supply line of the other gas.
An Oxygen sensor measures the Inspiratory Oxygen Concentration.
Internal Gas Blending function of the fabian Therapy evolution
1. Oxygen 2.0 to 6.0 bar
2. Air 2.0 to 6.0 bar
3. Filters
4. Pressure regulators
5. Pressure sensors
6. Proportional valve
7. To manifold
The minimum base flow is 4 Lpm in all modes except in O
2
Therapy.
Time till O
2
change is reached within Altera circuit set:
• up to 37 sec with default flow rate
• up to 75 sec with minimum flow rate
For more information, refer to the Technical Service Manual.
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